DESCRIPTION:3V sensor supply bank 1 circuit high voltage detected.
MONITORED PARAMETER:Motor Control Module (MCM) 3V internal power supply.
TYPICAL ENABLING CONDITIONS:Circuit voltage greater than 3.2 Volts.
DASH LAMPS:1. MIL2. CEL
VERIFICATION:Engine Idle (One minute).
PROBABLE CAUSES:Short to power on one of the following from the main 120-pin ECM connector:1. Pin 29 – DOC outlet temperature sensor.2. Pin 88 – DOC inlet temperature sensor, DOC outlet temperature sensor, DPF inlet temperature sensor, DPF outlet temperature sensor.
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