| DTC P2122: | APP Sensor A (Throttle Position Sensor D) Circuit Low Voltage |
| 1. | Turn the ignition switch ON (II). |
| 2. | Check APP SENSOR A in the DATA LIST with the HDS. Is there about 0.2V or less? YES - Go to 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at APP sensor A and the ECM/PCM.n |
| 3. | Turn the ignition switch OFF. |
| 4. | Disconnect the APP sensor 6P connector. |
| 5. | Turn the ignition switch ON (II). |
| 6. | Measure voltage between APP sensor 6P connector terminals No. 2 and No. 3.
Is there about 5 V? YES - Go to 7. NO - Go to 17. |
| 7. | Turn the ignition switch OFF. |
| 8. | Jump the SCS line with the HDS. |
| 9. | Disconnect ECM/PCM connector A (44P). |
| 10. | Check for continuity between APP sensor 6P connector terminal No. 1 and body ground.
Is there continuity? YES - Repair short in the wire between the ECM/PCM (A17) and APP sensor A, then go to 24. NO - Go to 11. |
| 11. | Connect APP sensor 6P connector terminal No. 1 to body ground with a jumper wire.
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| 12. | Check for continuity between ECM/PCM connector terminal A17 and body ground.
Is there continuity? YES - Go to 13. NO - Repair open in the wire between the ECM/PCM (A17) and APP sensor A, then go to 24. |
| 13. | Reconnect ECM/PCM connector A (44P). |
| 14. | Connect APP sensor 6P connector terminals No. 1 and No. 3 with a jumper wire.
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| 15. | Turn the ignition switch ON (II). |
| 16. | Check APP SENSOR A in the DATA LIST with the HDS. Is there about 0.2 V or less? YES - Go to 29. NO - Go to 22. |
| 17. | Turn the ignition switch OFF. |
| 18. | Jump the SCS line with the HDS. |
| 19. | Disconnect ECM/PCM connector A (44P). |
| 20. | Connect APP sensor 6P connector terminal No. 3 to body ground with a jumper wire.
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| 21. | Check for continuity between ECM/PCM connector terminal A25 and body ground.
Is there continuity? YES - Go to 29. NO - Repair open in the wire between the ECM/PCM (A25) and APP sensor A, then go to 24. |
| 22. | Turn the ignition switch OFF. |
| 23. | Replace the accelerator pedal module. |
| 24. | Reconnect all connectors. |
| 25. | Turn the ignition switch ON (II). |
| 26. | Reset the ECM/PCM with the HDS. |
| 27. | Do the ECM/PCM idle learn procedure. |
| 28. | Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P2122 is indicated, check for poor connections or loose terminals at APP sensor A and the ECM/PCM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Troubleshooting is complete.n |
| 29. | Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM. |
| 30. | Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P2122 is indicated, check for poor connections or loose terminals at APP sensor A and the ECM/PCM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM.n |