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Vauxhall Workshop Service and Repair Manuals

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Engine Control Module Wiring Harness Replacement - 2.0L Diesel LBS and LBX > < Alternator and Starter Cable Replacement - 1.4L LDD, LUH and LUJ

Astra J

Engine Control Module Wiring Harness Replacement (1.7L LPL, LPV)

Removal Procedure

1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
2. Remove the engine sight shield. Refer to Engine Sight Shield Replacement .
3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
4. Remove the air conditioning compressor bracket. Refer to Air Conditioning (A/C) Compressor and Power Steering Pump Bracket Replacement .

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5. Disconnect the engine control module wiring harness plug (1) and the glow plug controller wiring harness plug (2).
6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
7. Remove the engine compartment insulator. Refer to Front Compartment Insulator Replacement .
8. Disconnect the wiring harness connection plug (3).

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9. Disconnect and unclip the heated oxygen sensor wiring harness plug (1).
10. Disconnect the exhaust gas recirculation regulating valve wiring harness plug (2) and the exhaust temperature sensor wiring harness plug (3).
11. Disconnect the crankshaft position sensor wiring harness plug (5) and remove the ground cable bolt (4).

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12. Disconnect the 2 fuel injection pump wiring harness plugs (5, 6).
13. Disconnect the exhaust pressure sensor wiring harness plug (2) and the engine oil pressure indicator switch wiring harness plug (1).
14. Unclip the 4 engine wiring harness clips (3, 4) and hang the engine wiring harness aside.

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15. Disconnect the engine oil level indicator switch wiring harness plug (3) and the generator wiring harness plug (4).
16. Disconnect the exhaust temperature sensor wiring harness plug (2) and unclip the 2 engine wiring harness clips (1).
17. Lower the vehicle.

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18. Disconnect the 2 exhaust gas recirculation vacuum regulator solenoid valve wiring harness plugs (3) and the turbocharger pressure sensor wiring harness plug (2).
19. Unclip the engine wiring harness clip (1).

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20. Disconnect the throttle body wiring harness plug (1) and the engine coolant temperature sensor wiring harness plug (3).
21. Unclip the engine wiring harness clip (2).

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22. Disconnect the camshaft position sensor wiring harness plug (5) and the fuel rail pressure sensor wiring harness plug (8).
23. Disconnect the 4 fuel injector wiring harness plugs (3) and the 4 engine wiring harness glow plugs (6).
24. Remove the 3 engine wiring harness bracket bolts (2).
25. Unclip the 5 engine wiring harness clips (1, 4 and 7).
26. Remove the engine control module wiring harness from the vehicle.

Installation Procedure


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1. Position the engine control module wiring harness to the vehicle.
2. Clip in 5 engine wiring harness clips (1, 4 and 7).

Caution: Refer to Fastener Caution .
3. Install the 3 engine wiring harness bracket bolts (2) and tighten to 10 N·m (89 lb in) .
4. Connect the 4 fuel injector wiring harness plugs (3) and the 4 engine wiring harness glow plugs (6).
5. Connect the camshaft position sensor wiring harness plug (5) and the fuel rail pressure sensor wiring harness plug (8).

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6. Clip in the engine wiring harness clip (2).
7. Connect the throttle body wiring harness plug (1) and the engine coolant temperature sensor wiring harness plug (3).

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8. Clip in the engine wiring harness clip (1).
9. Connect the 2 exhaust gas recirculation vacuum regulator solenoid valve wiring harness plugs (3) and the turbocharger pressure sensor wiring harness plug (2).
10. Raise the vehicle.

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11. Connect the exhaust temperature sensor wiring harness plug (2) and clip in the 2 engine wiring harness clips (1).
12. Connect the engine oil level indicator switch wiring harness plug (3) and the generator wiring harness plug (4).

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13. Position the engine wiring harness.
14. Clip in the 4 engine wiring harness clips (3, 4).
15. Connect the exhaust pressure sensor wiring harness plug (2) and the engine oil pressure indicator switch wiring harness plug (1).
16. Connect the 2 fuel injection pump wiring harness plugs (5, 6) to the fuel injection pump.

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17. Connect the crankshaft position sensor wiring harness plug (5) to the crankshaft position sensor.
18. Install the ground cable bolt (4) and tighten to 25 N·m (18 lb ft) .
19. Connect the exhaust gas recirculation regulating valve wiring harness plug (2) and the exhaust temperature sensor wiring harness plug (3).
20. Connect and clip in the heated oxygen sensor wiring harness plug (1).

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21. Connect the wiring harness connection plug (3).
22. Install the engine compartment insulator. Refer to Front Compartment Insulator Replacement .
23. Lower the vehicle.
24. Connect the engine control module wiring harness plug (1) and the glow plug controller wiring harness plug (2).
25. Install the air conditioning compressor bracket. Refer to Air Conditioning (A/C) Compressor and Power Steering Pump Bracket Replacement .
26. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
27. Install the engine sight shield. Refer to Engine Sight Shield Replacement .
28. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .

Engine Control Module Wiring Harness Replacement - 2.0L Diesel LBS and LBX > < Alternator and Starter Cable Replacement - 1.4L LDD, LUH and LUJ