CVT System

DTC P2123: Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Circuit High Voltage

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information.

1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Check for Temporary DTCs or DTCs in the PGM-FI SYSTEM with the HDS.
Is DTC P2123 indicated in the PGM-FI system?
YES - Go to the DTC P2123 troubleshooting in the electronic throttle control system (ETCS).
NO - Go to step 4.

4. Check for DTCs in the A/T SYSTEM with the HDS.
Is DTC P2123 indicated in the A/T SYSTEM?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time.

5. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
6. Turn the ignition switch ON (II).
7. Check for DTCs the A/T SYSTEM with the HDS.
Is DTC P2123 indicated in the A/T SYSTEM?
YES - Check for poor connections or loose terminals at the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 6. If the PCM was substituted, go to step 1.
NO - Go to step 8.

8. Monitor the OBD STATUS for P2123 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other DTCs were indicated in step 7, go to the indicated DTC's troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 6. If the PCM was substituted, go to step 1. If the screen indicates NOT COMPLETED, keep the ignition switch ON (II) until a result comes on.