Vauxhall MERIVA 1.7 CDTi ECU (Engine Management) – Part No: 55586526 / 55579719
Common Faults:

• P0641 Sensor reference voltage A open circuit and P0651 sensor reference voltage B open circuit.
• P161E Glow plugs – no / wrong supply voltage.
• P0674 Cylinder 4 glow plug malfunction.
• P0672 Cylinder 2 glow plug malfunction.
• P0671 cylinder 1 glow plug malfunction.
• P064C Glow plug control malfunction.
• P066A Glow plug cylinder 1 voltage too low.
• P066C Cylinder 2 glow plug voltage too low.
• P066E Cylinder 3 glow plug voltage too low.
• P067A Cylinder 4 Glow Plug low voltage.
• No communication with the ABS control unit possible and CAN errors in other control units. and the vehicle does not start and communication between the engine control unit and the diagnostic tester is not possible.
• Other fault on request.

Part Numbers:

• Vauxhall Part Number – 55586526
• ACDelco Part Number – 55579719