DTC P0712: Transmission Fluid Temperature Sensor System (Short Circuit): Diagnosis
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
- STEP 1. Check the TCM terminal voltage.
[TCM connector (harness side, connected)]
Turn ON the ignition switch, and check the voltage between O/TS terminal and O/T-terminal.
- Transmission fluid 20°C (68°F): Approx. 2.52 V
- Transmission fluid 80°C (176°F): Approx. 0.69 V
Q: Is the check result normal?
- YES: Go to Step 6.
- NO: Go to Step 2.
- STEP 2. Check the transmission fluid temperature sensor.
Refer to TRANSMISSION FLUID TEMPERATURE SENSOR CHECK .
Q: Is the check result normal?
- YES: Go to Step 3.
- NO: Replace the valve body assembly.
- STEP 3. Check for short to ground in O/TS, O/T-line between the A/T control solenoid valve assembly connector and TCM connector.
Q: Is the check result normal?
- YES: Go to Step 4.
- NO: Repair the connector(s) or wiring harness.
- STEP 4. Check for open circuit and short to ground in VIG1, VIG2 line between the fusible link and the TCM connector, and check for open circuit in GND1, GND2 line between the TCM connector and body ground.
Q: Is the check result normal?
- YES: Go to Step 5.
- NO: Repair the connector(s) or wiring harness.
- STEP 5. Check the TCM connector pin terminal and the connection status.
Q: Is there a failure point?
- YES: Repair or replace the failure section.
- NO: Replace the TCM.
- STEP 6. Erase the DTC, and drive the vehicle for a while.
Check that the normal code is displayed.
Q: Is the check result normal?
- YES: The procedure is complete.
- NO: Replace the TCM.