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Home / DTC / P0732 — Gear 2 Incorrect Ratio

P0732 — Gear 2 Incorrect Ratio

Detailed page for trouble code P0732.

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Code

P0732

Generic P — Powertrain

Gear 2 Incorrect Ratio

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

Causes

  • Low, dirty, or incorrect transmission fluid
  • Low hydraulic/line pressure
  • Faulty shift solenoid(s) or valve body
  • Worn or damaged 2nd gear clutch pack, band, or planetary set
  • Faulty transmission input/turbine or output speed sensor
  • Wiring or connector faults to sensors or solenoids

Symptoms

  • Check Engine Light / transmission warning lamp illuminated
  • Harsh, delayed, or slipping shift into 2nd gear
  • Engine RPM higher than expected for vehicle speed in 2nd gear
  • Vehicle may enter limp-home mode or default to another gear
  • Poor acceleration or reduced fuel economy
  • Possible transmission noise or abnormal feel during shifts

What to check

  • Read and record freeze-frame and all related codes (P0732 and others)
  • Check transmission fluid level, color and odor; correct type and service history
  • Perform a road test while monitoring live data: engine RPM, input (turbine) speed, output speed, calculated gear, TCM requested gear
  • Inspect wiring and connectors for speed sensors and shift solenoids for damage or corrosion
  • Check for additional codes (P0720, P0700, solenoid codes, pressure-related codes)
  • Measure line/servo pressure with a gauge during stall and shift to verify hydraulic pressure

Signal parameters

  • Engine RPM (rpm)
  • Transmission input/turbine speed (rpm)
  • Transmission output/vehicle speed sensor (rpm or km/h / mph)
  • Calculated gear ratio = input rpm / output rpm (unitless)
  • TCM requested gear and reported current gear
  • Shift solenoid status/duty cycle (on/off or % duty)

Diagnostic algorithm

  1. Retrieve codes, freeze-frame data and note transmission temperature and operating conditions when the code set.
  2. Visually inspect transmission fluid level, condition and pan for debris/metal; top or change fluid and filter if contaminated or low.
  3. Clear codes and perform a monitored road test to reproduce P0732 while recording input speed, output speed, calculated ratio, TCM requested gear and solenoid activity.
  4. If ratio error repeats, inspect connectors/wiring to speed sensors and solenoids; wiggle test for intermittent faults.
  5. Verify speed sensors: compare sensor voltages/signals to known-good values or swap with a known-good (if applicable) and re-test.
  6. Command shift solenoids with a scan tool; verify they change circuit current/duty and produce expected pressure changes or shift behavior.
  7. Perform a hydraulic/line pressure test at idle, during stall and during shift to confirm adequate pressure for 2nd-gear application.
  8. If hydraulics and solenoids operate correctly but ratio is incorrect, suspect internal wear: clutch pack, band, or planetary assembly — further teardown inspection may be required.
  9. Check for TCM software updates or calibrations from manufacturer and re-flash if recommended; re-check after calibration.
  10. Repair or replace failed components (sensor, solenoid, valve body, clutch pack, or TCM) as indicated by test results; clear codes and verify repair with road test.

Likely causes

  • Low or degraded transmission fluid causing slippage or poor pressure
  • Faulty shift solenoid or valve body channel preventing correct hydraulic application
  • Worn 2nd-gear clutch pack or band allowing slip under load
  • Bad or intermittent transmission input/output speed sensor or wiring
  • TCM calibration error or stuck shift strategy

Fault status

⚠️ Status
ECM/TCM detected that the actual transmission gear ratio in 2nd gear does not match the expected ratio — possible hydraulic, mechanical, sensor or control issue.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-4.0 hours

Similar codes

P0730 P0731 P0733 P0734 P0735 P0740
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Code

P0732

GWM P — Powertrain

- 2 gear set incorrectly

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

Causes

  • Low, dirty, or incorrect transmission fluid
  • Low hydraulic/line pressure
  • Faulty shift solenoid(s) or valve body
  • Worn or damaged 2nd gear clutch pack, band, or planetary set
  • Faulty transmission input/turbine or output speed sensor
  • Wiring or connector faults to sensors or solenoids

Symptoms

  • Check Engine Light / transmission warning lamp illuminated
  • Harsh, delayed, or slipping shift into 2nd gear
  • Engine RPM higher than expected for vehicle speed in 2nd gear
  • Vehicle may enter limp-home mode or default to another gear
  • Poor acceleration or reduced fuel economy
  • Possible transmission noise or abnormal feel during shifts

What to check

  • Read and record freeze-frame and all related codes (P0732 and others)
  • Check transmission fluid level, color and odor; correct type and service history
  • Perform a road test while monitoring live data: engine RPM, input (turbine) speed, output speed, calculated gear, TCM requested gear
  • Inspect wiring and connectors for speed sensors and shift solenoids for damage or corrosion
  • Check for additional codes (P0720, P0700, solenoid codes, pressure-related codes)
  • Measure line/servo pressure with a gauge during stall and shift to verify hydraulic pressure

Signal parameters

  • Engine RPM (rpm)
  • Transmission input/turbine speed (rpm)
  • Transmission output/vehicle speed sensor (rpm or km/h / mph)
  • Calculated gear ratio = input rpm / output rpm (unitless)
  • TCM requested gear and reported current gear
  • Shift solenoid status/duty cycle (on/off or % duty)

Diagnostic algorithm

  1. Retrieve codes, freeze-frame data and note transmission temperature and operating conditions when the code set.
  2. Visually inspect transmission fluid level, condition and pan for debris/metal; top or change fluid and filter if contaminated or low.
  3. Clear codes and perform a monitored road test to reproduce P0732 while recording input speed, output speed, calculated ratio, TCM requested gear and solenoid activity.
  4. If ratio error repeats, inspect connectors/wiring to speed sensors and solenoids; wiggle test for intermittent faults.
  5. Verify speed sensors: compare sensor voltages/signals to known-good values or swap with a known-good (if applicable) and re-test.
  6. Command shift solenoids with a scan tool; verify they change circuit current/duty and produce expected pressure changes or shift behavior.
  7. Perform a hydraulic/line pressure test at idle, during stall and during shift to confirm adequate pressure for 2nd-gear application.
  8. If hydraulics and solenoids operate correctly but ratio is incorrect, suspect internal wear: clutch pack, band, or planetary assembly — further teardown inspection may be required.
  9. Check for TCM software updates or calibrations from manufacturer and re-flash if recommended; re-check after calibration.
  10. Repair or replace failed components (sensor, solenoid, valve body, clutch pack, or TCM) as indicated by test results; clear codes and verify repair with road test.

Likely causes

  • Low or degraded transmission fluid causing slippage or poor pressure
  • Faulty shift solenoid or valve body channel preventing correct hydraulic application
  • Worn 2nd-gear clutch pack or band allowing slip under load
  • Bad or intermittent transmission input/output speed sensor or wiring
  • TCM calibration error or stuck shift strategy

Fault status

⚠️ Status
ECM/TCM detected that the actual transmission gear ratio in 2nd gear does not match the expected ratio — possible hydraulic, mechanical, sensor or control issue.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-4.0 hours

Similar codes

P0730 P0731 P0733 P0734 P0735 P0740
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Code

P0732

HUMMER P — Powertrain

Incorrect 2nd Gear Ratio

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

Causes

  • Low, dirty, or incorrect transmission fluid
  • Low hydraulic/line pressure
  • Faulty shift solenoid(s) or valve body
  • Worn or damaged 2nd gear clutch pack, band, or planetary set
  • Faulty transmission input/turbine or output speed sensor
  • Wiring or connector faults to sensors or solenoids

Symptoms

  • Check Engine Light / transmission warning lamp illuminated
  • Harsh, delayed, or slipping shift into 2nd gear
  • Engine RPM higher than expected for vehicle speed in 2nd gear
  • Vehicle may enter limp-home mode or default to another gear
  • Poor acceleration or reduced fuel economy
  • Possible transmission noise or abnormal feel during shifts

What to check

  • Read and record freeze-frame and all related codes (P0732 and others)
  • Check transmission fluid level, color and odor; correct type and service history
  • Perform a road test while monitoring live data: engine RPM, input (turbine) speed, output speed, calculated gear, TCM requested gear
  • Inspect wiring and connectors for speed sensors and shift solenoids for damage or corrosion
  • Check for additional codes (P0720, P0700, solenoid codes, pressure-related codes)
  • Measure line/servo pressure with a gauge during stall and shift to verify hydraulic pressure

Signal parameters

  • Engine RPM (rpm)
  • Transmission input/turbine speed (rpm)
  • Transmission output/vehicle speed sensor (rpm or km/h / mph)
  • Calculated gear ratio = input rpm / output rpm (unitless)
  • TCM requested gear and reported current gear
  • Shift solenoid status/duty cycle (on/off or % duty)

Diagnostic algorithm

  1. Retrieve codes, freeze-frame data and note transmission temperature and operating conditions when the code set.
  2. Visually inspect transmission fluid level, condition and pan for debris/metal; top or change fluid and filter if contaminated or low.
  3. Clear codes and perform a monitored road test to reproduce P0732 while recording input speed, output speed, calculated ratio, TCM requested gear and solenoid activity.
  4. If ratio error repeats, inspect connectors/wiring to speed sensors and solenoids; wiggle test for intermittent faults.
  5. Verify speed sensors: compare sensor voltages/signals to known-good values or swap with a known-good (if applicable) and re-test.
  6. Command shift solenoids with a scan tool; verify they change circuit current/duty and produce expected pressure changes or shift behavior.
  7. Perform a hydraulic/line pressure test at idle, during stall and during shift to confirm adequate pressure for 2nd-gear application.
  8. If hydraulics and solenoids operate correctly but ratio is incorrect, suspect internal wear: clutch pack, band, or planetary assembly — further teardown inspection may be required.
  9. Check for TCM software updates or calibrations from manufacturer and re-flash if recommended; re-check after calibration.
  10. Repair or replace failed components (sensor, solenoid, valve body, clutch pack, or TCM) as indicated by test results; clear codes and verify repair with road test.

Likely causes

  • Low or degraded transmission fluid causing slippage or poor pressure
  • Faulty shift solenoid or valve body channel preventing correct hydraulic application
  • Worn 2nd-gear clutch pack or band allowing slip under load
  • Bad or intermittent transmission input/output speed sensor or wiring
  • TCM calibration error or stuck shift strategy

Fault status

⚠️ Status
ECM/TCM detected that the actual transmission gear ratio in 2nd gear does not match the expected ratio — possible hydraulic, mechanical, sensor or control issue.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-4.0 hours

Similar codes

P0730 P0731 P0733 P0734 P0735 P0740
Repair manuals

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Code

P0732

LAND ROVER P — Powertrain

Incorrect gear ratio 2

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

Causes

  • Low, dirty, or incorrect transmission fluid
  • Low hydraulic/line pressure
  • Faulty shift solenoid(s) or valve body
  • Worn or damaged 2nd gear clutch pack, band, or planetary set
  • Faulty transmission input/turbine or output speed sensor
  • Wiring or connector faults to sensors or solenoids

Symptoms

  • Check Engine Light / transmission warning lamp illuminated
  • Harsh, delayed, or slipping shift into 2nd gear
  • Engine RPM higher than expected for vehicle speed in 2nd gear
  • Vehicle may enter limp-home mode or default to another gear
  • Poor acceleration or reduced fuel economy
  • Possible transmission noise or abnormal feel during shifts

What to check

  • Read and record freeze-frame and all related codes (P0732 and others)
  • Check transmission fluid level, color and odor; correct type and service history
  • Perform a road test while monitoring live data: engine RPM, input (turbine) speed, output speed, calculated gear, TCM requested gear
  • Inspect wiring and connectors for speed sensors and shift solenoids for damage or corrosion
  • Check for additional codes (P0720, P0700, solenoid codes, pressure-related codes)
  • Measure line/servo pressure with a gauge during stall and shift to verify hydraulic pressure

Signal parameters

  • Engine RPM (rpm)
  • Transmission input/turbine speed (rpm)
  • Transmission output/vehicle speed sensor (rpm or km/h / mph)
  • Calculated gear ratio = input rpm / output rpm (unitless)
  • TCM requested gear and reported current gear
  • Shift solenoid status/duty cycle (on/off or % duty)

Diagnostic algorithm

  1. Retrieve codes, freeze-frame data and note transmission temperature and operating conditions when the code set.
  2. Visually inspect transmission fluid level, condition and pan for debris/metal; top or change fluid and filter if contaminated or low.
  3. Clear codes and perform a monitored road test to reproduce P0732 while recording input speed, output speed, calculated ratio, TCM requested gear and solenoid activity.
  4. If ratio error repeats, inspect connectors/wiring to speed sensors and solenoids; wiggle test for intermittent faults.
  5. Verify speed sensors: compare sensor voltages/signals to known-good values or swap with a known-good (if applicable) and re-test.
  6. Command shift solenoids with a scan tool; verify they change circuit current/duty and produce expected pressure changes or shift behavior.
  7. Perform a hydraulic/line pressure test at idle, during stall and during shift to confirm adequate pressure for 2nd-gear application.
  8. If hydraulics and solenoids operate correctly but ratio is incorrect, suspect internal wear: clutch pack, band, or planetary assembly — further teardown inspection may be required.
  9. Check for TCM software updates or calibrations from manufacturer and re-flash if recommended; re-check after calibration.
  10. Repair or replace failed components (sensor, solenoid, valve body, clutch pack, or TCM) as indicated by test results; clear codes and verify repair with road test.

Likely causes

  • Low or degraded transmission fluid causing slippage or poor pressure
  • Faulty shift solenoid or valve body channel preventing correct hydraulic application
  • Worn 2nd-gear clutch pack or band allowing slip under load
  • Bad or intermittent transmission input/output speed sensor or wiring
  • TCM calibration error or stuck shift strategy

Fault status

⚠️ Status
ECM/TCM detected that the actual transmission gear ratio in 2nd gear does not match the expected ratio — possible hydraulic, mechanical, sensor or control issue.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-4.0 hours

Similar codes

P0730 P0731 P0733 P0734 P0735 P0740
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

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

P0732

MERCEDES-BENZ P — Powertrain

Gear 2 Incorrect ratio

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

Causes

  • Low, dirty, or incorrect transmission fluid
  • Low hydraulic/line pressure
  • Faulty shift solenoid(s) or valve body
  • Worn or damaged 2nd gear clutch pack, band, or planetary set
  • Faulty transmission input/turbine or output speed sensor
  • Wiring or connector faults to sensors or solenoids

Symptoms

  • Check Engine Light / transmission warning lamp illuminated
  • Harsh, delayed, or slipping shift into 2nd gear
  • Engine RPM higher than expected for vehicle speed in 2nd gear
  • Vehicle may enter limp-home mode or default to another gear
  • Poor acceleration or reduced fuel economy
  • Possible transmission noise or abnormal feel during shifts

What to check

  • Read and record freeze-frame and all related codes (P0732 and others)
  • Check transmission fluid level, color and odor; correct type and service history
  • Perform a road test while monitoring live data: engine RPM, input (turbine) speed, output speed, calculated gear, TCM requested gear
  • Inspect wiring and connectors for speed sensors and shift solenoids for damage or corrosion
  • Check for additional codes (P0720, P0700, solenoid codes, pressure-related codes)
  • Measure line/servo pressure with a gauge during stall and shift to verify hydraulic pressure

Signal parameters

  • Engine RPM (rpm)
  • Transmission input/turbine speed (rpm)
  • Transmission output/vehicle speed sensor (rpm or km/h / mph)
  • Calculated gear ratio = input rpm / output rpm (unitless)
  • TCM requested gear and reported current gear
  • Shift solenoid status/duty cycle (on/off or % duty)

Diagnostic algorithm

  1. Retrieve codes, freeze-frame data and note transmission temperature and operating conditions when the code set.
  2. Visually inspect transmission fluid level, condition and pan for debris/metal; top or change fluid and filter if contaminated or low.
  3. Clear codes and perform a monitored road test to reproduce P0732 while recording input speed, output speed, calculated ratio, TCM requested gear and solenoid activity.
  4. If ratio error repeats, inspect connectors/wiring to speed sensors and solenoids; wiggle test for intermittent faults.
  5. Verify speed sensors: compare sensor voltages/signals to known-good values or swap with a known-good (if applicable) and re-test.
  6. Command shift solenoids with a scan tool; verify they change circuit current/duty and produce expected pressure changes or shift behavior.
  7. Perform a hydraulic/line pressure test at idle, during stall and during shift to confirm adequate pressure for 2nd-gear application.
  8. If hydraulics and solenoids operate correctly but ratio is incorrect, suspect internal wear: clutch pack, band, or planetary assembly — further teardown inspection may be required.
  9. Check for TCM software updates or calibrations from manufacturer and re-flash if recommended; re-check after calibration.
  10. Repair or replace failed components (sensor, solenoid, valve body, clutch pack, or TCM) as indicated by test results; clear codes and verify repair with road test.

Likely causes

  • Low or degraded transmission fluid causing slippage or poor pressure
  • Faulty shift solenoid or valve body channel preventing correct hydraulic application
  • Worn 2nd-gear clutch pack or band allowing slip under load
  • Bad or intermittent transmission input/output speed sensor or wiring
  • TCM calibration error or stuck shift strategy

Fault status

⚠️ Status
ECM/TCM detected that the actual transmission gear ratio in 2nd gear does not match the expected ratio — possible hydraulic, mechanical, sensor or control issue.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-4.0 hours

Similar codes

P0730 P0731 P0733 P0734 P0735 P0740
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
Code

P0732

MITSUBISHI P — Powertrain

Gear shift 2nd incomplete

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

Causes

  • Low, dirty, or incorrect transmission fluid
  • Low hydraulic/line pressure
  • Faulty shift solenoid(s) or valve body
  • Worn or damaged 2nd gear clutch pack, band, or planetary set
  • Faulty transmission input/turbine or output speed sensor
  • Wiring or connector faults to sensors or solenoids

Symptoms

  • Check Engine Light / transmission warning lamp illuminated
  • Harsh, delayed, or slipping shift into 2nd gear
  • Engine RPM higher than expected for vehicle speed in 2nd gear
  • Vehicle may enter limp-home mode or default to another gear
  • Poor acceleration or reduced fuel economy
  • Possible transmission noise or abnormal feel during shifts

What to check

  • Read and record freeze-frame and all related codes (P0732 and others)
  • Check transmission fluid level, color and odor; correct type and service history
  • Perform a road test while monitoring live data: engine RPM, input (turbine) speed, output speed, calculated gear, TCM requested gear
  • Inspect wiring and connectors for speed sensors and shift solenoids for damage or corrosion
  • Check for additional codes (P0720, P0700, solenoid codes, pressure-related codes)
  • Measure line/servo pressure with a gauge during stall and shift to verify hydraulic pressure

Signal parameters

  • Engine RPM (rpm)
  • Transmission input/turbine speed (rpm)
  • Transmission output/vehicle speed sensor (rpm or km/h / mph)
  • Calculated gear ratio = input rpm / output rpm (unitless)
  • TCM requested gear and reported current gear
  • Shift solenoid status/duty cycle (on/off or % duty)

Diagnostic algorithm

  1. Retrieve codes, freeze-frame data and note transmission temperature and operating conditions when the code set.
  2. Visually inspect transmission fluid level, condition and pan for debris/metal; top or change fluid and filter if contaminated or low.
  3. Clear codes and perform a monitored road test to reproduce P0732 while recording input speed, output speed, calculated ratio, TCM requested gear and solenoid activity.
  4. If ratio error repeats, inspect connectors/wiring to speed sensors and solenoids; wiggle test for intermittent faults.
  5. Verify speed sensors: compare sensor voltages/signals to known-good values or swap with a known-good (if applicable) and re-test.
  6. Command shift solenoids with a scan tool; verify they change circuit current/duty and produce expected pressure changes or shift behavior.
  7. Perform a hydraulic/line pressure test at idle, during stall and during shift to confirm adequate pressure for 2nd-gear application.
  8. If hydraulics and solenoids operate correctly but ratio is incorrect, suspect internal wear: clutch pack, band, or planetary assembly — further teardown inspection may be required.
  9. Check for TCM software updates or calibrations from manufacturer and re-flash if recommended; re-check after calibration.
  10. Repair or replace failed components (sensor, solenoid, valve body, clutch pack, or TCM) as indicated by test results; clear codes and verify repair with road test.

Likely causes

  • Low or degraded transmission fluid causing slippage or poor pressure
  • Faulty shift solenoid or valve body channel preventing correct hydraulic application
  • Worn 2nd-gear clutch pack or band allowing slip under load
  • Bad or intermittent transmission input/output speed sensor or wiring
  • TCM calibration error or stuck shift strategy

Fault status

⚠️ Status
ECM/TCM detected that the actual transmission gear ratio in 2nd gear does not match the expected ratio — possible hydraulic, mechanical, sensor or control issue.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-4.0 hours

Similar codes

P0730 P0731 P0733 P0734 P0735 P0740
406

Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MITSUBISHI

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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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