Code
P1741
DAEWOO
P — Powertrain
Shift motor (pos2) - gnd short
Views:
UK: 2
EN: 5
RU: 2
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
FORD
P — Powertrain
Torque Converter Clutch Control Error
Views:
UK: 13
EN: 28
RU: 24
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
LAND ROVER
P — Powertrain
Torque converter clutch control error p1744 Lock-up converter clutch heat control 1 malfunction p1745 Pressure regulator regulator
Views:
UK: 4
EN: 10
RU: 7
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
LINCOLN
P — Powertrain
Torque Converter Clutch Control Error
Views:
UK: 10
EN: 23
RU: 18
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
MAZDA
P — Powertrain
Torque Converter Clutch Control Electrical Fault
Views:
UK: 11
EN: 23
RU: 18
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
MERCURY
P — Powertrain
Torque Converter Clutch Control Error
Views:
UK: 11
EN: 23
RU: 19
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
MITSUBISHI
P — Powertrain
CVT shift solenoid
Views:
UK: 5
EN: 10
RU: 12
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
Other
P — Powertrain
Torque Converter Clutch Control Error
Views:
UK: 11
EN: 28
RU: 22
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
RAM
P — Powertrain
Gear Ratio Error in 4 Prime
Views:
UK: 1
EN: 3
RU: 2
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
P1741
VOLKSWAGEN
P — Powertrain
Clutch Pressure Adaptation At Limit
Views:
UK: 13
EN: 43
RU: 26
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (chafing, pinched, crushed) causing a short to ground
- Corroded or loose connector at the shift motor or TCM
- Internal short or electrical failure inside the shift motor assembly
- Water intrusion or contamination in connectors
- Poor or missing ground at motor or transmission case
- Blown fuse or shorted relay in the circuit
Symptoms
- Malfunction Indicator Lamp (MIL) or transmission warning light ON
- Transmission stuck in one gear or fails to shift into certain gears
- Erratic shifting or limp-in-safe mode
- Clicking or no movement from shift motor when commanded
- Possible inability to move vehicle or reduced drivability
What to check
- Read and record freeze frame and all stored codes with a compatible scan tool
- Visually inspect shift motor connector, pins and wiring for corrosion, damage or fluid contamination
- Perform a wiggle test on the harness while monitoring the code or live data
- Check fuses and relays related to transmission/shift motor circuit
- Backprobe shift motor connector and measure voltage while commanding the motor with scan tool
- Measure resistance between motor terminals and chassis ground (check for low resistance indicating a short)
Signal parameters
- Reference (supply) voltage to shift motor when commanded: typically battery voltage ~9–14 V (key ON / engine running)
- Ground side: should switch or be low (~0 V) when commanded; an unexpected stable low suggests a short to ground
- Motor coil resistance (typical range): generally low ohms (approx. 5–50 Ω) — consult service data for exact value
- No-load current: elevated or infinite current draw suggests shorted windings or internal motor fault
- If PWM-controlled, expect a pulsed voltage signal; steady 0 V with command indicates short to ground
Diagnostic algorithm
- Retrieve code(s) and freeze frame data; note operating conditions when code set.
- Visually inspect shift motor connector, wiring looms and ground points for damage, corrosion or fluid entry. Repair visible damage.
- Clear codes. Reproduce drive conditions; see if code returns to confirm repeatability.
- With ignition ON and engine OFF, backprobe the shift motor connector. Command the motor using a scan tool and observe voltage on each terminal.
- If voltage reads near 0 V while commanded, disconnect the motor connector and re-check the circuit: measure voltage at harness side. If voltage is present at harness and absent at motor, suspect short in motor. If voltage still low at harness side, suspect short in wiring/TCM.
- Measure resistance between motor terminals and chassis ground. Low resistance to ground indicates a shorted winding or pin contact.
- Perform continuity checks and insulation tests on the harness to locate shorted section; wiggle harness while monitoring continuity.
- If harness and connectors are good, bench-test or replace shift motor assembly. If the motor replacement does not clear the fault, suspect TCM driver failure and further verify with manufacturer procedures before replacing TCM.
- After repair, clear codes and perform a full function test and road test to confirm proper shifting and that code does not return.
Likely causes
- Wiring harness damaged near transmission or routing points (most common)
- Corroded connector on shift motor or harness
- Internal motor coil short or burnt motor windings
- Ground strap or ground point corrosion causing intermittent shorts
Fault status
Status
Shift motor position 2 circuit reports a short to ground. The TCM detected abnormally low voltage or direct ground when commanding the shift motor. Inspect wiring, connector, ground, and the motor; if wiring and connector are good, test/replace the motor assembly or follow TCM output diagnostics.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Your experience will help others
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Was this AI description helpful?
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Send to email