Volvo All Engines (2017 Emissions) Fault Code: U300A12 PID: ACM Key Position
Volvo All Engines (2017 Emissions) Fault Code: U300A12 PID: ACM Key Position
Circuit description
When the ignition key is switched to the RUN position, battery voltage is supplied though fuse 64 to the aftertreatment control module (ACM).
Conditions for diagnostic trouble code (DTC)
Ignition switch voltage shorted high
Probable cause
1) Chassis Harness
2) Cab harness
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