Honda Fit/Jazz - DTC Troubleshooting: P2122 (37) (With ETCS)
DTC Troubleshooting: P2122 (37)
| DTC P2122: | APP sensor A Circuit Low Voltage |
| 1. | Turn the ignition switch ON (II). |
| 2. | Do the DTC CLEAR in the CLEAR MENU with the HDS. |
| 3. | Turn the ignition switch OFF. |
| 4. | Turn the ignition switch ON (II). |
| 5. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are DTC P0107, P0122, P0222, and P2122 indicated at the same time? YES - Go to Connect the ECM test harness and the test pin box to the wire harness only, not to the ECM. |
| 16. | Check for continuity between test pin box terminal No.63 and body ground. Is there continuity? YES - Repair short in the wire between the ECM connector No. 3 terminal No. 34 (test pin box terminal No. 63) and the APP sensor A, then go to Connect the ECM test harness and the test pin box between the ECM and connector.. |
| 21. | Turn the ignition switch ON (II). |
| 22. | Measure voltage between test pin box terminals No. 33 and No. 58. Is there about 5 V? YES - Repair open in the wire between the ECM connector No. 3 terminal No. 4 (test pin box terminal No. 33) and the APP sensor A, then go to Connect the ECM test harness and the test pin box to the wire harness only, not to the ECM. |
| 25. | Disconnect the connectors from the these sensors:
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| 26. | Check for continuity between body ground and the test pin box terminals No. 33 and No. 46 individually. Is there continuity? YES - Repair short in the wire between the ECM connector No. 3 terminal No. 4 or No. 17 (test pin box terminal No. 33 or No. 46) and the each sensor, then go to Connect the ECM test harness to the ECM. |
| 28. | Turn the ignition switch ON (II). |
| 29. | Measure voltage between test pin box terminal No. 46 and body ground. Is there about 5 V? YES - Go to Do the ETCS learn procedure. |
| 37. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P2122 is indicated, check for poor connections or loose terminals at the APP sensor A and the ECM, then go to Substitute a known-good ECM. |
| 39. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P2122 is indicated, check for poor connections or loose terminals at the APP sensor A and the ECM, then go to Replace the original ECM. |
