P0710

DTC P0710: A Problem in ATF Temperature Sensor Circuit

NOTE: Record all freeze data and review General Troubleshooting Information before you troubleshoot.

1. Check whether the OBD II scan tool indicates a code for the fuel and emissions system.
Does the OBD II scan tool indicate a code for the fuel and emissions system?
YES - Perform the troubleshooting flowchart for the fuel and emissions system code. Recheck for code P0710 after troubleshooting.
NO - Go to step 2.
2. Disconnect the 2P connector from the ATF temperature sensor harness.





3. Measure ATF temperature sensor resistance at the sensor connector.
Is the resistance 50 Ohms - 2.5 k Ohms?
YES - Go to step 4.
NO - Replace the ATF temperature sensor.
4. Turn the ignition ON (II).





5. Measure the voltage between the No. 2 terminal of the ATF temperature sensor connector and body ground.
Is there about 5 V?
YES - Go to step 6.
NO - Go to step 7.





6. Measure the voltage between the No. 1 and No. 2 terminals of the ATF temperature sensor connector.
Is there about 5 V?
YES - Check for loose terminal fit at the PCM connectors C24, C18 and at the ATF Temperature sensor. If necessary, substitute a known-good PCM and recheck. If the DTC recurs, substitute a known good ATF temperature sensor.
NO - Repair open in the wire between the C18 terminal and the ATF temperature sensor.





7. Measure the voltage between PCM connector terminal C24 and body ground.
Is there about 5 V?
YES - Repair open in the wire between PCM connector terminal C24 and the ATF temperature sensor.
NO - Go to step 8.
8. Turn the ignition switch OFF.
9. Disconnect PCM connector C (31P).





10. Check for continuity between PCM connector terminal C24 and body ground.
Is there continuity?
YES - Repair short to ground in the wire between PCM connector terminal C24 and the ATF temperature sensor.
NO - Check for loose terminal fit in the PCM connectors C24 and C18. If necessary, substitute a known-good PCM or ATF temperature sensor and recheck.