VOLVOUU All Engines (2013 Emissions) Fault Code: P05E400 PID: EMS Park Brake Sensor/Switch Circuit Low
The VECU reads the status of the parking brake switch; this information is transmitted via the J1939 data link in order for the Engine Control Module (ECM) to read the parking brake status. If vehicle speed is detected when the switch is closed or circuit shorted to ground this diagnostic code (DTC) will be set after two ignition cycles.
Conditions for diagnostic trouble code (DTC):
1) Short circuit to ground in the component or wiring
Observable symptoms
1) Brake lights are lit without obvious reason
2) Vehicle speed is not zero
Probable cause
1) Damaged component
2) Damaged wiring harness
3) Damaged connector
4) Vehicle Control Unit (VECU)
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