Volvo All Engines (2013 Emissions) Fault Code: P10C012 PID: EMS Volvo Compression Brake (VCB) Control “2” Circuit

Volvo All Engines (2013 Emissions) Fault Code: P10C012 PID: EMS Volvo Compression Brake (VCB) Control “2” Circuit

Conditions for diagnostic trouble code (DTC):
1) Short circuit to battery voltage on A14.EB:46

Observable symptoms
1) Reduced engine braking since the compression brake cannot be activated
2) Reduced gear selection performance for some automatic transmissions

Probable cause
1) Connector
2) Wiring harness
3) Short circuit in the compression brake solenoid valve