01420 - High Pressure Switch Valve 1 for Electronic Stability Program (N227)

Possible Symptoms
    Malfunction Indicator Light (MIL) ON

Possible Causes
    Fuse(s) faulty
    Wiring and/or Connector(s) from/to Brake Electronics (J104) faulty
        Wiring and/or Connector(s) from/to Valve Power Supply faulty
    Brake Electronics (J104) faulty

Possible Solutions
    Check Fuse(s)
    Check Wiring and/or Connector(s) from/to Brake Electronics (J104)
        Check Wiring and/or Connector(s) from/to Valve Power Supply
    Check/Replace Brake Electronics (J104)
        Perform Output Test