DTC P0643 is set when the voltage above 5.75V - maximum voltage of sensor power supply from ECM/PCM is detected. This code is due to the short to battery in sensor power circuit or the voltage problem inside of ECM/PCM.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical Check (VCC_PVS:Power Supply Voltage for Pedal Sensor 2 and MAP sensor) | 1. Short to Power in "A" circuit 2. ECM/PCM component |
Enable Conditions |
•
Ignition Key ON | |
Threshold Value |
•
VCC_PVS_2 > 5.5V | |
Diagnostic Time |
•
Continuous | |
MIL ON Condition |
•
1 Driving Cycles |
