DESCRIPTION:This code sets when the aftertreatment control module (ACM) detects a short to power on pins 9,15, 39 within one second after the ignition has been turned on.
MONITORED PARAMETER:High side digital output 3 circuit.
TYPICAL ENABLING CONDITIONS:Always enabled
MONITOR SEQUENCE:None
EXECUTION FREQUENCY:One second after the ignition is cycled on.
TYPICAL DURATION:Two seconds
DASH LAMPS:1. MIL2. CEL
ENGINE REACTION:None
VERIFICATION:Cycle the ignition key from the off position to the on position.
PROBABLE CAUSES:1. Doser heater.2. Doser heater lines 1, 2, 3, or 4.3. ACM (Aftertreatment Control Module) failure.4. Short to battery between ACM pins 9, 15, 39, or 2 and their components.5. Reconnect items in #4 one at a time and clear the fault code after each connection. When fault becomes active, replace the components.