DTC Troubleshooting Index
WARNING: This page is about a different car, the 2008 Honda Pilot, 2007 Honda Pilot, and 2006 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
DTC TROUBLESHOOTING CHART
| DTC(1) | VTM-4 Indicator | Detection Item | Probable Cause(s) | ||
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| 21-1 | ON | Left-front wheel sensor |
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| 22-1 | ON | Right-front wheel sensor | |||
| 23-1 | ON | Left-rear wheel sensor | |||
| 24-1 | ON | Right-rear wheel sensor | |||
| 26-1 | ON | VSA modulator-control unit or wire harness |
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| 37-1 | ON | Engine RPM signal circuit |
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| 38-1 | ON | ||||
| 41-1 | ON | CAN communication (PCM/VSA system) |
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| 42-1 | ON | Rear differential fluid temperature sensor |
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| 43-1 | ON | ||||
| 44-1 | ON | VTM-4 relay |
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| 51-1 | ON | Left clutch electromagnetic coil |
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| 52-1 | ON | Left clutch electromagnetic coil | |||
| 53-1 | ON | Left clutch electromagnetic coil | |||
| 54-1 | ON | Left clutch electromagnetic coil | |||
| 55-1 | ON | Right clutch electromagnetic coil |
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| 56-1 | ON | Right clutch electromagnetic coil | |||
| 57-1 | ON | Right clutch electromagnetic coil | |||
| 58-1 | ON | Right clutch electromagnetic coil | |||
| 59-1 | ON | Right/left clutch electromagnetic coil power supply |
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| 73-1 | ON | MAP (manifold absolute pressure) sensor or PCM | Fault in the PCM system/MAP (manifold absolute pressure) sensor is defective | ||
| 76-1 | ON | Rear differential clutch warning system |
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| 77-1 | ON | PCM | PCM is defective | ||
| 78-1 | ON | VTM-4 control unit | VTM-4 control unit is defective | ||
| 41-2 | ON | CAN communication (PCM/VSA system) | Open or short in the wire harness between the VTM-4 control unit and the PCM/VSA | ||
| 42-2 | ON | Rear differential fluid temperature sensor |
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| 21-2 | ON | Left-front wheel sensor |
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| 22-2 | ON | Right-front wheel sensor | |||
| 23-2 | ON | Left-rear wheel sensor | |||
| 24-2 | ON | Right-rear wheel sensor | |||
| 53-2 | ON | Left or right clutch electromagnetic coil |
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