Manufacturer Code Charts: 32
TPMS DTC Troubleshooting: 32, 34, 36, 38
DTC 32, 34, 36, 38:
Tire Pressure Sensor Signal Failure
NOTE:
- Inspect for an aftermarket electrical device(s) (such as an inverter, battery charger, CB radio, etc) interfering with the RF signal from the pressure sensors when turning the ignition switch to ON (II).
- Vehicle must be driven for 3 minutes at 15 mph (24 km/h) or more for DTC 32, 34, 36, or 38 to set.
1. Turn the ignition switch to ON (II).
2. Check the DTC indicated to the tire location to make sure the wheel is a TPMS type with the tire pressure sensor.
Is a TPMS type wheel with a tire pressure sensor mounted on the vehicle?
YES -
Go to step 3.
NO -
Install a TPMS type wheel and memorize the tire pressure sensor ID. Drive the vehicle above 15 mph (24 km/h) continuously for 40 seconds, or memorize the sensor ID with the HDS.
3. Test-drive the vehicle.
4. Check the VEHICLE SPEED in the TPMS DATA LIST with the HDS.
Is the vehicle speed indicated?
YES -
Go to step 9.
NO -
Go to step 5.
5. Clear the DTC with the HDS.
6. Turn the ignition switch to LOCK (0).
7. Turn the ignition switch to ON (II).
8. Check for DTCs with the HDS.
Is DTC 85 indicated?
YES -
Go to the DTC 85 troubleshooting 85.
NO -
Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit Service and Repair, and recheck.
9. Turn the ignition switch to LOCK (0).
10. Turn the ignition switch to ON (II).
11. Check the TPMS DATA LIST for RF, LF, RR, or LR TIRE PRESSURE SENSOR STATUS changes to NORMAL with the HDS.
NOTE: If UNDEFINED is shown on the sensor transmitter status, turn the ignition switch to LOCK (0), rotate the tire 1/4 turn, then turn the ignition switch to ON (II), and try again. If UNDEFINED is still displayed, repeat this procedure until NORMAL is shown.
Is NORMAL indicated within one full turn of the tire?
YES -
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.
NO -
Go to step 12.
12. Turn the ignition switch to LOCK (0).
13. Substitute a wheel with a known-good tire pressure sensor on the vehicle Service and Repair.
14. To memorize the tire pressure sensor ID, drive the vehicle above 15 mph (24 km/h) for 40 continuous seconds, or memorize the sensor ID with the HDS.
15. Turn the ignition switch to LOCK (0) and wait 2 minutes for the sensors to go to sleep.
16. Turn the ignition switch to ON (II).
17. Check TPMS DATA LIST for RF, LF, RR, or LR TIRE PRESSURE SENSOR STATUS changes to NORMAL with the HDS.
NOTE: If UNDEFINED is shown on the sensor transmitter status, turn the ignition switch to LOCK (0), rotate the tire 1/4 turn, then turn the ignition switch to ON (II), and try again. If UNDEFINED is still displayed, repeat this procedure until NORMAL is shown.
Is NORMAL indicated within one full turn of the tire?
YES -
Replace the tire pressure sensor on the client's wheel Service and Repair.
NO -
Go to step 18.
18. Turn the ignition switch to LOCK (0).
19. Substitute an initiator from a known-good location on the current vehicle, or from another known-good vehicle Service and Repair.
20. To memorize the sensor tire pressure sensor ID, drive the vehicle above 15 mph (24 km/h) for 40 continuous seconds, or memorize the sensor ID with the HDS.
21. Turn the ignition switch to LOCK (0) and wait 2 minutes for the sensors to go to sleep.
22. Turn the ignition switch to ON (II).
23. Check TPMS DATA LIST for RF, LF, RR, and LR TIRE PRESSURE SENSOR STATUS changes to NORMAL with the HDS.
NOTE: If UNDEFINED is shown on the sensor transmitter status, turn the ignition switch to LOCK (0), rotate the tire 1/4 turn, then turn the ignition switch to ON (II), and try again. If UNDEFINED is still displayed, repeat this procedure until NORMAL is shown.
Is NORMAL indicated within one full turn of the tire?
YES -
Replace the appropriate initiator Service and Repair.
NO -
Go to step 24.
24. Turn the ignition switch to LOCK (0).
25. Disconnect the appropriate initiator 3P connector Service and Repair.
26. Disconnect TPMS control unit connector A (14P) and B (20P) Service and Repair.
27. Check for continuity between the appropriate TPMS control unit connector A (14P) terminal and appropriate initiator 3P connector terminal No. 1 (see table).
Is there continuity?
YES -
Go to step 28.
NO -
Repair an open in the wire between the TPMS control unit and the appropriate initiator.
28. Check for continuity between the appropriate TPMS control unit connector B (20P) terminal and appropriate initiator 3P connector terminal No. 3 (see table).
Is there continuity?
YES -
Go to step 29.
NO -
Repair an open in the wire between the TPMS control unit and the appropriate initiator.
29. Check for continuity between the appropriate TPMS control unit connector B (20P) terminal and appropriate initiator 3P connector terminal No. 2 (see table).
Is there continuity?
YES -
Go to step 30.
NO -
Repair an open in the wire between the TPMS control unit and the appropriate initiator.
30. Check for continuity between body ground and the appropriate TPMS control unit connector B (20P) terminal (see table).
Is there continuity?
YES -
Repair a short to body ground in the wire between the TPMS control unit and the appropriate initiator.
NO -
Go to step 31.
31. Turn the ignition switch to ON (II).
32. Measure the voltage between body ground and the appropriate TPMS control unit connector B (20P) terminal (see table).
Is there battery voltage?
YES -
Repair a short to power in the wire between the TPMS control unit and the appropriate initiator.
NO -
Replace the TPMS control unit Service and Repair.