P1782

DTC P1782: TP Sensor Circuit Low Voltage
2005 Model

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. Turn the ignition switch ON (II).
2. Check the TP SENSOR in the DATA LIST with the HDS.
Is there about 0.5 V when the throttle is fully closed and about 4.5 V when the throttle is fully opened?
YES- Check for poor connections or loose terminals at the TP sensor, the TCM, and the ECM, then recheck. If DTC P1782 is indicated, go to step 3.
NO- Do the DTC Troubleshooting for the TP sensor circuit low voltage. Recheck for DTC P1782 after troubleshooting.
3. Turn the ignition switch OFF.
4. Disconnect the TP sensor 3P connector.
5. Disconnect TCM connector B (22P).





6. Connect TP sensor 3P connector terminal No. 2 to body ground with a jumper wire.





7. Check for continuity between TCM connector terminal B4 and body ground.
Is there continuity?
YES- Substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
NO- Repair open in the wire between TCM (B4), and the TP sensor.