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):
1) Ignition switch voltage shorted high
Probable cause
1) Chassis Harness
2) Cab harness
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Volvo Premium Tech Tool PTT 2.8.130 Diagnostic Software 04.2022 ACPI ( 1 PC )
Trucks software $143.00
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