Volvo All Engines (2010 Emissions) Fault Code: SPN 1072 FMI 3 PID: Engine (Compression) Brake Output #1

Conditions for diagnostic trouble code (DTC):
1) Short circuit to battery voltage on A14.EB:30

Diagnostic operating conditions
1) Ignition key in ON position

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) Short circuit in the compression brake solenoid valve
3) Wiring harness
4) Engine control module (ECM)

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