WOMS
P code powertrain High severity

P1732 2-3 Shift Malfunction

The OBD2 code P1732 indicates a malfunction in the 2-3 shift of the transmission, typically related to issues with the transmission control system or components affecting the shifting process

Definition

The OBD2 code P1732 indicates a malfunction in the 2-3 shift of the transmission, typically related to issues with the transmission control system or components affecting the shifting process

Common causes

  • Faulty transmission control module (TCM)
  • Malfunctioning shift solenoid
  • Low transmission fluid level
  • Contaminated transmission fluid
  • Worn or damaged transmission components
  • Electrical issues (wiring or connectors)
  • Faulty vehicle speed sensor (VSS)
  • Incorrectly adjusted transmission linkage

Common misdiagnoses

  • Transmission fluid issues
  • Faulty transmission control module (TCM)
  • Wiring or connector problems
  • Faulty speed sensors
  • Incorrectly adjusted throttle position sensor (TPS)
  • Engine performance issues
  • Mechanical transmission problems
  • Faulty solenoids or valves in the transmission

Troubleshooting steps

  1. 1. Check Transmission Fluid Level and Condition

  2. 2. Ensure that the transmission fluid is at the correct level. Low fluid can cause shifting issues

  3. 3. Inspect the fluid for contamination, burning smell, or dark color. If the fluid is dirty or burnt, consider a fluid change

  4. 4. Inspect for Leaks

  5. 5. Look for any signs of transmission fluid leaks around the transmission pan, seals, and hoses

  6. 6. Scan for Additional Codes

  7. 7. Use an OBD-II scanner to check for any other related trouble codes that may provide more context to the issue

  8. 8. Check Transmission Control Module (TCM)

  9. 9. Inspect the TCM for any faults. Ensure that it is functioning correctly and that there are no wiring issues or poor connections

  10. 10. Inspect Wiring and Connectors

  11. 11. Check the wiring and connectors related to the transmission for any signs of damage, corrosion, or loose connections

  12. 12. Test the Shift Solenoids

  13. 13. The shift solenoids control the flow of transmission fluid and are critical for proper shifting. Test the solenoids for proper operation and replace if necessary

  14. 14. Examine the Throttle Position Sensor (TPS)

  15. 15. The TPS provides input to the transmission control system. Ensure it is functioning correctly and calibrated

  16. 16. Check for Mechanical Issues

  17. 17. Inspect the transmission for any mechanical problems, such as worn clutches, bands, or internal components that could affect shifting

  18. 18. Perform a Transmission Fluid Flush

  19. 19. If the fluid is contaminated, a complete flush may help improve shifting performance

  20. 20. Road Test

  21. 21. After performing checks and repairs, conduct a road test to see if the issue persists. Pay attention to the shifting behavior during acceleration and deceleration. 1

  22. 22. Consult a Professional

  23. 23. If the problem continues after performing these steps, it may be best to consult a professional mechanic or transmission specialist for further diagnosis and repair. Always remember to follow safety precautions and consult the vehicle's service manual for specific procedures related to your make and model