P0712
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 ATF wire between the ATF temperature Sensor and the PCM.
2. Disconnect the shift solenoid harness connector at the shift solenoid valve 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 ATF temperature sensor, then go to step 9.
4. Turn the ignition switch OFF.
5. Jump the SCS line with the HDS.
6. Disconnect PCM connector B (44P).
7. Check for continuity between shift solenoid harness connector terminal No. 6 and body ground.
Is there continuity?
YES - Repair short to ground in the wire between PCM connector terminal B27 and shift: solenoid harness connector terminal No. 6, then go to step 9.
NO - Go to step 8.
8. Remove the shift solenoid harness connector, and check for continuity between shift solenoid harness connector terminal No. 6 and body ground. Do not disconnect shift solenoid valve A connector.
Is there continuity?
YES - Replace the ATF temperature sensor, then go to step 9.
NO - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck for DTC P0712. If the symptom/indication goes away with a known-good PCM, replace the original PCM, then go to step 9.
9. Clear the DTC with the HDS.
10. Test-drive the vehicle for several minutes in the D position through all five gears.
11. Monitor the OBD status for P0712 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate PASSED?
YES - Troubleshooting is complete.
NO - If the PCM was updated and the screen indicates FAILED, substitute a known-good PCM, then go to step 9. If the PCM was substituted and the screen indicates FAILED, return to step 1 and recheck. If the screen indicates NOT COMPLETED, return to step 10.