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DTC P0643: Sensor Power Supply
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DTC Logic
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DTC Detection Logic
DTC Detection Logic
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0643
SENSOR POWER/CIRC
(Sensor power supply 1 circuit short)
ECM detects a voltage of power source for sensor is excessively low or high.
Sensor power supply 1 circuit