DTC Detection Logic
WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART
| DTC No. |
Trouble diagnosis name |
DTC detecting condition |
Possible cause |
| P0643 |
Sensor power supply circuit short |
ECM detects that the voltage of power source for sensor is excessively low or high. |
- Harness or connectors [Accelerator pedal position (APP) sensor 1 circuit is shorted.] [Throttle position (TP) sensor circuit is shorted.] [Camshaft position (CMP) sensor (PHASE) circuit is shorted.) [Exhaust valve timing (EVT) control position sensor circuit is shorted.] [Power steering pressure (PSP) sensor circuit is shorted.] (Battery current sensor circuit is shorted.)
- APP sensor
- TP sensor
- CMP sensor (PHASE)
- EVT control position sensor
- PSP sensor
- Battery current sensor
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