DTC Troubleshooting
DTC P0712: Short in ATF Temperature Sensor CircuitNOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information.
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
1. Check the ATF TEMP SENSOR voltage with the HDS in the A/T data list.
Is the ATF TEMP SENSOR voltage 0.07 V or less?
YES - Go to step 2.
NO - Intermittent failure, the system is OK at this time. Check for an intermittent short in the ATFT wire between the ATF temperature sensor and the PCM.
2. Disconnect the ATF temperature sensor connector at the transmission end cover.
3. Check the ATF TEMP SENSOR voltage with the HDS.
Is the ATF TEMP SENSOR voltage 0.07 V or less?
YES - Go to step 4.
NO - Replace the ATF temperature sensor, then go to step 8.
4. Turn the ignition switch OFF.
5. Jump the SCS line with the HDS.
6. Disconnect PCM connector C (44P).
7. Check for continuity between ATF temperature sensor connector terminal No. 2 and body ground.
Is there continuity?
YES - Repair a short to ground in the wire between PCM connector terminal C28 and the ATF temperature sensor connector No. 2 terminal, then go to step 8.
NO - Go to step 14.
8. Reconnect all connectors.
9. Turn the ignition switch ON (II).
10. Clear the DTC with the HDS.
11. Test-drive the vehicle for several minutes in the D position through all five gears.
12. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0712 indicated?
YES - Check for poor connections or loose terminals at the ATF temperature sensor and the PCM, then go to step 1.
NO - Go to step 13.
13. Monitor the OBD STATUS for P0712 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete.
NO - Return to step 1 and recheck.
14. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
15. Test-drive the vehicle for several minutes in the D position through all five gears.
16. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0712 indicated?
YES - Check for poor connections or loose terminals at the ATF temperature sensor and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 15. If the PCM was substituted, go to step 1.
NO - Go to step 17.
17. Monitor the OBD STATUS for P0712 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete.
NO - Return to step 1 and recheck.