01421

From Ross-Tech Wiki

01421 - High Pressure Switch Valve 2 for Electronic Stability Program (N228)

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
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