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Home / DTC / P0761 — Shift Solenoid C Performance/Stuck Off

P0761 — Shift Solenoid C Performance/Stuck Off

Detailed page for trouble code P0761.

34,405codes
59brands
11,914generic
22,491specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
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Code

P0761

Generic P — Powertrain

Shift Solenoid C Performance/Stuck Off

Brand: Generic
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed/shorted/open shift solenoid C
  • Wiring harness damage, broken wires or short to ground/power
  • Poor or corroded connector pins, poor ground
  • Low or contaminated automatic transmission fluid (ATF)
  • Valve body or hydraulic circuit blockage affecting solenoid function
  • Faulty transmission control module (TCM/PCM) or software issue

Symptoms

  • Transmission may remain in one gear or shift harshly/late
  • Delayed engagement or failure to shift into certain gears
  • Transmission warning lamp / check engine light illuminated
  • Vehicle may enter limp/low-gear mode with reduced performance
  • Erratic or hunting shifts, noticeable when accelerating

What to check

  • Read and record all stored codes and freeze frame data with a scan tool
  • Check ATF level and condition (color, odor, contamination)
  • Visually inspect connectors and wiring for damage, corrosion, or loose pins
  • Backprobe connector to confirm solenoid supply voltage and ground
  • Measure solenoid coil resistance with a multimeter against spec
  • Use a scan tool to command solenoid ON/OFF and observe transmission response

Signal parameters

  • Solenoid coil resistance (ohms) — compare to manufacturer specification
  • Supply voltage to solenoid (approx. battery voltage with ignition on)
  • Ground continuity between solenoid ground and chassis/TCM ground
  • PWM duty cycle, frequency and waveform when solenoid is commanded (scan tool data)
  • Current draw (amps) when solenoid is energized

Diagnostic algorithm

  1. Connect a scan tool. Read and note P0761 plus any related transmission codes and freeze-frame conditions.
  2. Check ATF level and condition. Replace or service fluid if burned, dark, or contains debris before further electrical diagnosis.
  3. Visually inspect the transmission wiring harness and connector for damage, corrosion, or loose pins at the solenoid and at the TCM/PCM.
  4. With ignition on (engine off), measure solenoid C coil resistance at the connector. Compare to spec. An open or shorted coil indicates a bad solenoid.
  5. Backprobe the harness with a multimeter/scan tool while commanding the solenoid ON/OFF. Verify supply voltage, ground switching or PWM signal, and that the solenoid responds (observe pressure or gear change if safe).
  6. Wiggle test the harness while monitoring signal and code status to check for intermittent faults.
  7. If electrical supply and control signals are correct but the solenoid does not operate, remove and bench-test/replace solenoid. Inspect the valve body for contamination or sticking valves; clean or rebuild as needed.
  8. If solenoid and valve body are good, verify TCM output using scope or substitute TCM if available; consider software updates or module replacement as last step.
  9. After repairs, clear codes, perform a road test with a scan tool to confirm proper operation and that P0761 does not return.

Likely causes

  • Solenoid electrical failure (coil open or shorted)
  • Lost power or ground to the solenoid from connector or harness
  • Hydraulic contamination preventing solenoid valve movement
  • Intermittent circuit due to damaged wiring or connector
  • Internal valve body wear or sticking valve

Fault status

⚠️ Status
P0761 - Shift Solenoid C Performance/Stuck Off (Transmission solenoid C not responding to command or stuck off)
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-2.5 hours

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P0750 P0755 P0760 P0762
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Code

P0761

GWM P — Powertrain

- The C solenoid switch

Brand: GWM
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed/shorted/open shift solenoid C
  • Wiring harness damage, broken wires or short to ground/power
  • Poor or corroded connector pins, poor ground
  • Low or contaminated automatic transmission fluid (ATF)
  • Valve body or hydraulic circuit blockage affecting solenoid function
  • Faulty transmission control module (TCM/PCM) or software issue

Symptoms

  • Transmission may remain in one gear or shift harshly/late
  • Delayed engagement or failure to shift into certain gears
  • Transmission warning lamp / check engine light illuminated
  • Vehicle may enter limp/low-gear mode with reduced performance
  • Erratic or hunting shifts, noticeable when accelerating

What to check

  • Read and record all stored codes and freeze frame data with a scan tool
  • Check ATF level and condition (color, odor, contamination)
  • Visually inspect connectors and wiring for damage, corrosion, or loose pins
  • Backprobe connector to confirm solenoid supply voltage and ground
  • Measure solenoid coil resistance with a multimeter against spec
  • Use a scan tool to command solenoid ON/OFF and observe transmission response

Signal parameters

  • Solenoid coil resistance (ohms) — compare to manufacturer specification
  • Supply voltage to solenoid (approx. battery voltage with ignition on)
  • Ground continuity between solenoid ground and chassis/TCM ground
  • PWM duty cycle, frequency and waveform when solenoid is commanded (scan tool data)
  • Current draw (amps) when solenoid is energized

Diagnostic algorithm

  1. Connect a scan tool. Read and note P0761 plus any related transmission codes and freeze-frame conditions.
  2. Check ATF level and condition. Replace or service fluid if burned, dark, or contains debris before further electrical diagnosis.
  3. Visually inspect the transmission wiring harness and connector for damage, corrosion, or loose pins at the solenoid and at the TCM/PCM.
  4. With ignition on (engine off), measure solenoid C coil resistance at the connector. Compare to spec. An open or shorted coil indicates a bad solenoid.
  5. Backprobe the harness with a multimeter/scan tool while commanding the solenoid ON/OFF. Verify supply voltage, ground switching or PWM signal, and that the solenoid responds (observe pressure or gear change if safe).
  6. Wiggle test the harness while monitoring signal and code status to check for intermittent faults.
  7. If electrical supply and control signals are correct but the solenoid does not operate, remove and bench-test/replace solenoid. Inspect the valve body for contamination or sticking valves; clean or rebuild as needed.
  8. If solenoid and valve body are good, verify TCM output using scope or substitute TCM if available; consider software updates or module replacement as last step.
  9. After repairs, clear codes, perform a road test with a scan tool to confirm proper operation and that P0761 does not return.

Likely causes

  • Solenoid electrical failure (coil open or shorted)
  • Lost power or ground to the solenoid from connector or harness
  • Hydraulic contamination preventing solenoid valve movement
  • Intermittent circuit due to damaged wiring or connector
  • Internal valve body wear or sticking valve

Fault status

⚠️ Status
P0761 - Shift Solenoid C Performance/Stuck Off (Transmission solenoid C not responding to command or stuck off)
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-2.5 hours

Similar codes

P0750 P0755 P0760 P0762
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
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Code

P0761

HUMMER P — Powertrain

Shift Solenoid C Performance or Stuck Off

Brand: HUMMER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed/shorted/open shift solenoid C
  • Wiring harness damage, broken wires or short to ground/power
  • Poor or corroded connector pins, poor ground
  • Low or contaminated automatic transmission fluid (ATF)
  • Valve body or hydraulic circuit blockage affecting solenoid function
  • Faulty transmission control module (TCM/PCM) or software issue

Symptoms

  • Transmission may remain in one gear or shift harshly/late
  • Delayed engagement or failure to shift into certain gears
  • Transmission warning lamp / check engine light illuminated
  • Vehicle may enter limp/low-gear mode with reduced performance
  • Erratic or hunting shifts, noticeable when accelerating

What to check

  • Read and record all stored codes and freeze frame data with a scan tool
  • Check ATF level and condition (color, odor, contamination)
  • Visually inspect connectors and wiring for damage, corrosion, or loose pins
  • Backprobe connector to confirm solenoid supply voltage and ground
  • Measure solenoid coil resistance with a multimeter against spec
  • Use a scan tool to command solenoid ON/OFF and observe transmission response

Signal parameters

  • Solenoid coil resistance (ohms) — compare to manufacturer specification
  • Supply voltage to solenoid (approx. battery voltage with ignition on)
  • Ground continuity between solenoid ground and chassis/TCM ground
  • PWM duty cycle, frequency and waveform when solenoid is commanded (scan tool data)
  • Current draw (amps) when solenoid is energized

Diagnostic algorithm

  1. Connect a scan tool. Read and note P0761 plus any related transmission codes and freeze-frame conditions.
  2. Check ATF level and condition. Replace or service fluid if burned, dark, or contains debris before further electrical diagnosis.
  3. Visually inspect the transmission wiring harness and connector for damage, corrosion, or loose pins at the solenoid and at the TCM/PCM.
  4. With ignition on (engine off), measure solenoid C coil resistance at the connector. Compare to spec. An open or shorted coil indicates a bad solenoid.
  5. Backprobe the harness with a multimeter/scan tool while commanding the solenoid ON/OFF. Verify supply voltage, ground switching or PWM signal, and that the solenoid responds (observe pressure or gear change if safe).
  6. Wiggle test the harness while monitoring signal and code status to check for intermittent faults.
  7. If electrical supply and control signals are correct but the solenoid does not operate, remove and bench-test/replace solenoid. Inspect the valve body for contamination or sticking valves; clean or rebuild as needed.
  8. If solenoid and valve body are good, verify TCM output using scope or substitute TCM if available; consider software updates or module replacement as last step.
  9. After repairs, clear codes, perform a road test with a scan tool to confirm proper operation and that P0761 does not return.

Likely causes

  • Solenoid electrical failure (coil open or shorted)
  • Lost power or ground to the solenoid from connector or harness
  • Hydraulic contamination preventing solenoid valve movement
  • Intermittent circuit due to damaged wiring or connector
  • Internal valve body wear or sticking valve

Fault status

⚠️ Status
P0761 - Shift Solenoid C Performance/Stuck Off (Transmission solenoid C not responding to command or stuck off)
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-2.5 hours

Similar codes

P0750 P0755 P0760 P0762
Repair manuals

Manual library for HUMMER

138

Browse 138 HUMMER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

HUMMER

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Code

P0761

MERCEDES-BENZ P — Powertrain

Shift Solenoid C Performance or Stuck Off

Brand: MERCEDES-BENZ
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed/shorted/open shift solenoid C
  • Wiring harness damage, broken wires or short to ground/power
  • Poor or corroded connector pins, poor ground
  • Low or contaminated automatic transmission fluid (ATF)
  • Valve body or hydraulic circuit blockage affecting solenoid function
  • Faulty transmission control module (TCM/PCM) or software issue

Symptoms

  • Transmission may remain in one gear or shift harshly/late
  • Delayed engagement or failure to shift into certain gears
  • Transmission warning lamp / check engine light illuminated
  • Vehicle may enter limp/low-gear mode with reduced performance
  • Erratic or hunting shifts, noticeable when accelerating

What to check

  • Read and record all stored codes and freeze frame data with a scan tool
  • Check ATF level and condition (color, odor, contamination)
  • Visually inspect connectors and wiring for damage, corrosion, or loose pins
  • Backprobe connector to confirm solenoid supply voltage and ground
  • Measure solenoid coil resistance with a multimeter against spec
  • Use a scan tool to command solenoid ON/OFF and observe transmission response

Signal parameters

  • Solenoid coil resistance (ohms) — compare to manufacturer specification
  • Supply voltage to solenoid (approx. battery voltage with ignition on)
  • Ground continuity between solenoid ground and chassis/TCM ground
  • PWM duty cycle, frequency and waveform when solenoid is commanded (scan tool data)
  • Current draw (amps) when solenoid is energized

Diagnostic algorithm

  1. Connect a scan tool. Read and note P0761 plus any related transmission codes and freeze-frame conditions.
  2. Check ATF level and condition. Replace or service fluid if burned, dark, or contains debris before further electrical diagnosis.
  3. Visually inspect the transmission wiring harness and connector for damage, corrosion, or loose pins at the solenoid and at the TCM/PCM.
  4. With ignition on (engine off), measure solenoid C coil resistance at the connector. Compare to spec. An open or shorted coil indicates a bad solenoid.
  5. Backprobe the harness with a multimeter/scan tool while commanding the solenoid ON/OFF. Verify supply voltage, ground switching or PWM signal, and that the solenoid responds (observe pressure or gear change if safe).
  6. Wiggle test the harness while monitoring signal and code status to check for intermittent faults.
  7. If electrical supply and control signals are correct but the solenoid does not operate, remove and bench-test/replace solenoid. Inspect the valve body for contamination or sticking valves; clean or rebuild as needed.
  8. If solenoid and valve body are good, verify TCM output using scope or substitute TCM if available; consider software updates or module replacement as last step.
  9. After repairs, clear codes, perform a road test with a scan tool to confirm proper operation and that P0761 does not return.

Likely causes

  • Solenoid electrical failure (coil open or shorted)
  • Lost power or ground to the solenoid from connector or harness
  • Hydraulic contamination preventing solenoid valve movement
  • Intermittent circuit due to damaged wiring or connector
  • Internal valve body wear or sticking valve

Fault status

⚠️ Status
P0761 - Shift Solenoid C Performance/Stuck Off (Transmission solenoid C not responding to command or stuck off)
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-2.5 hours

Similar codes

P0750 P0755 P0760 P0762
856

Browse 856 MERCEDES-BENZ manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MERCEDES-BENZ

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+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

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