Vauxhall ASTRA 1.4 ECU (Engine Management) – Part No: 12639235 / 12616532
Common Faults:

• P0689 Ignition Relay Engine Control Feedback Circuit Low Voltage and P1682 Ignition 1 Switch Circuit 2.
• P0462 Fuel level sensor circuit low voltage.
• P0246 Boost solenoid valve signal out of range.
• P262B Off Timer Performance.
• Control unit does not work, vehicle does not start.
• Diagnostic communication with the control unit is not possible, other control units have filed CAN errors relating to the engine control unit (ECM).
• P06A3 5V reference 4 circuit.
• P0697 5V reference 3 circuit.
• P0651 5V reference 2 circuit.
• P0641 5V reference 1 circuit.
• Other fault on request.

Part Numbers:

• Vauxhall Part Number – 12639235
• ACDelco Part Number – 12616532