Honda Fit/Jazz - DTC Troubleshooting: P0405 (12) (With ETCS)
DTC Troubleshooting: P0405 (12)
| DTC P0405: | EGR Valve Position Sensor Cirucuit 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 P0405 and P2127 indicated at the same time? YES - Go to Connect the ECM test connector. |
| 14. | Turn the ignition switch ON (II). |
| 15. | Measure voltage between test pin box terminal No. 45 and body ground. Is there about 5 V? YES - Repair open in the wire between the ECM connector No. 3 terminal No. 16 (test pin box terminal No. 45) and the EGR valve, then go to to the ECM. |
| 18. | Check for continuity between test pin box terinal No. 68 and body ground. Is there continuity? YES - Repair short in the wire between the ECM connector No. 3 terminal No. 39 (test pin box terminal No. 68) and the EGR Valve, then go to Connect the ECM test harness to the ECM. |
| 24. | Measure voltage between test pin box terminal No. 68 and body ground. Is there about 0.1 V or less? YES - Go to to the ECM. |
| 27. | Disconnect the connctors from the these sensors:
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| 28. | Check for continuity between body ground and the test pin box terminals No. 32 and No. 45 individually. Is there continuity? YES - Repair short in the wire between the ECM connector No. 3 terminal No. 3 or No. 16 (test pin box terminal No. 32 or No. 45) and the each sensor, then go to Connect the ECM test harness to the ECM. |
| 30. | Turn the ignition switch ON (II). |
| 31. | Measure voltage between test pin box terminal No. 45 and body ground. Is there about 5 V? YES - Go to Do the ETCS learn procedure. |
| 39. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0405 is indicated, check for poor connections or loose terminals at the EGR Valve and the ECM, then go to Substitute a known-good ECM. |
| 41. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0405 is indicated, check for poor connections or loose terminals at the EGR Valve and the ECM, then go to Replace the original ECM.n |
