DTC Troubleshooting: P0712 (28-3)

DTC P0712: Short in ATF Temperature Sensor Circuit NOTE:

- Record all freeze data and review General Troubleshooting Information before you troubleshoot.
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

1. Check ATF temperature sensor voltage with the HDS in the A/T data list.

Is ATF temperature sensor voltage 0.07 V or less?

YES | - | Go to Step 2 .
NO | - | Intermittent failure, the system is OK at this time. Check for intermittent short in the wires between the ATF temperature sensor and PCM.■

1. Disconnect the shift solenoid harness connector at the shift solenoid valve cover.

1. Check ATF temperature sensor voltage with the HDS.

Is ATF temperature sensor voltage 0.07 V or less?

YES | - | Go to Step 4 .
NO | - | Check for a short to ground in the shift solenoid harness wire in the transmission. If the wire is OK, replace ATF temperature sensor, then go to Step 8 .

1. Turn the ignition switch OFF.

1. Jump the SCS line with the HDS.

1. Disconnect PCM connector C (22P).

1. Check for continuity between the No. 6 terminal of the shift solenoid harness connector and body ground.

Is there continuity?

YES | - | Repair short to ground in the wire between PCM connector terminal C14 and the shift solenoid harness connector, then go to Step 8 .
NO | - | Check for a short to ground in the shift solenoid harness wire in the transmission. If the wire is OK, update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM .■

1. Clear the DTC with the HDS.

1. Test-drive the vehicle for several minutes in the D position in all five gears.

1. Monitor the OBD status for P0712 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the result indicate a pass?

YES | - | The problem has been corrected.■
NO | - | Return to Step 1 and recheck.■