DTC P0712 (326)
DTC P0712 : Transmission Fluid Temperature Sensor Circuit Low
NOTE: Before you troubleshoot, review the general troubleshooting information .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0712 Transmission Fluid Temperature Sensor Circuit Low |
DTC (Electric Powertrain)
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Turn the vehicle to the OFF (LOCK) mode.
-4. Turn the vehicle to the ON mode.
-5. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit ATF Temperature Sensor Voltage (TRC) Less than 0.1 V Does the current condition(s) match the threshold?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure. The system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.
- Determine possible failure area (TATF line, transmission fluid temperature sensor)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Transmission fluid temperature sensor 2P connector -3. Turn the vehicle to the ON mode.
-4. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit ATF Temperature Sensor Voltage (TRC) Less than 0.1 V Does the current condition(s) match the threshold?
YES
Go to step 3.
NO
- Shorted wire check (TATF line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Do the 12 volt battery terminal disconnection procedure .
-3. Disconnect the following connector.
PCU 33P connector -4. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode PCU 33P connector: disconnected Transmission fluid temperature sensor 2P connector: disconnected Test point 1 PCU 33P connector No. 23 Test point 2 Body ground Is there 1 MΩ or more?
YES
NO
Repair a short in the TATF wire between the transmission fluid temperature sensor and the PCU.