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Battery Replacement - Diesel with Start/Stop System > < Engine Control Module Wiring Harness Replacement - 1.7L LPL, LPV

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Engine Control Module Wiring Harness Replacement (2.0L Diesel LBS and LBX)

Removal Procedure

1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .

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2. Disconnect the 2 engine control module wiring harness plugs (2) from the engine control module (1).
3. Unclip the 2 wiring harness clips (3).
4. Remove the engine control module bracket along with the engine control module in top direction from the battery tray.
5. Remove the battery tray. Refer to Battery Tray Replacement .
6. Remove the front compartment fuse block. Refer to Front Compartment Fuse Block Replacement .

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7. Remove the wiring harness ground cable nut (2) and remove the wiring harness ground cable (3).
8. Remove the wiring harness plug (1) in top direction from the front compartment fuse block housing.
9. Disconnect the wiring harness connection adapter plug (4).

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10. Disconnect the turbocharger wastegate actuator valve wiring harness plug (6).
11. Disconnect the heated oxygen sensor wiring harness plug (3).
12. Disconnect the exhaust temperature sensor wiring harness plug (4).
13. Disconnect the exhaust gas recirculation vacuum regulator solenoid valve wiring harness plug (2).
14. Unclip the 4 wiring harness clips (1, 5) from the brackets.

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15. Disconnect the backup lamp switch wiring harness plug (2) and unclip the wiring harness clip (1) from the exhaust gas recirculation tank.

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16. Disconnect the engine coolant temperature sensor wiring harness plug (4).
17. Disconnect the throttle body wiring harness plug (3).
18. Disconnect the glow plug connector wiring harness plug (1).
19. Unclip the 2 wiring harness clips (2) from the brackets.

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20. Disconnect the fuel injector connector wiring harness plug (2).
21. Remove the 2 wiring harness conduit bolts (1).

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22. Disconnect the fuel rail pressure regulator wiring harness plug (1).
23. Disconnect the intake manifold temperature sensor wiring harness plug (6).
24. Disconnect the exhaust pressure sensor wiring harness plug (5) and the fuel injection pump wiring harness plug (4).
25. Unclip the 5 wiring harness clips (2, 3, 7).

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26. Disconnect the mass air flow wiring harness plug (1) and unclip the wiring harness clip (2) from the air cleaner assembly.
27. Disconnect the camshaft position sensor wiring harness plug (3) and the positive crankcase ventilation heater wiring harness plug (6).
28. Remove the positive crankcase ventilation hose (4) from the positive crankcase ventilation heater.
29. Remove the 2 air cleaner outlet duct clamps (5).
30. Remove the air cleaner outlet front duct and the air cleaner outlet rear duct.

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31. Disconnect the turbocharger wastegate wiring harness plug (2).
32. Unclip the 3 wiring harness clips (1).
33. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
34. Remove the front compartment insulator. Refer to Front Compartment Insulator Replacement .
35. If equipped with start/stop system, disconnect the oil pressure valve wiring harness plug and unclip the wiring harness clip from the engine block.
36. Disconnect the air conditioning compressor wiring harness plug (3) and unclip the wiring harness clip (4). Hang the wiring harness aside.

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37. Remove the starter positive cable nut (6) and the starter positive cable (7).
38. Disconnect the oil pressure switch wiring harness plug (5) and the generator wiring harness plug (3).
39. Disconnect the wiring harness connector (4) from the wheel speed wiring harness.
40. Disconnect the exhaust gas recirculation valve wiring harness plug (1).
41. Disconnect the intake manifold runner actuator wiring harness plug (8)
42. If equipped with start/stop system, disconnect the auxiliary water pump wiring harness plug.
43. Unclip the 2 wiring harness clips (2) from the brackets. Hang the wiring harness aside.
44. Lower the vehicle.
45. Remove the engine wiring harness from the vehicle.

Installation Procedure

1. Position the engine wiring harness to the vehicle.
2. Raise the vehicle.

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3. Position the wiring harness. Clip the 2 wiring harness clips (2) to the brackets.
4. If equipped with start/stop system, connect the auxiliary water pump wiring harness plug.
5. Connect the intake manifold runner actuator wiring harness plug (8).
6. Connect the exhaust gas recirculation valve wiring harness plug (1).
7. Connect the wiring harness connector (4) to the wheel speed wiring harness.
8. Connect the oil pressure switch wiring harness plug (5) and the generator wiring harness plug (3).

Caution: Refer to Fastener Caution .
9. Install the starter positive cable (7) and the starter positive cable nut (6) and tighten to 5 N·m (44 lb in) .

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10. Position the wiring harness. Connect the air conditioning compressor wiring harness plug (3) and clip in the wiring harness clip (4).
11. Install the front compartment insulator. Refer to Front Compartment Insulator Replacement .
12. If equipped with start/stop system, connect the oil pressure valve wiring harness plug and clip the wiring harness clip to the engine block.
13. Lower the vehicle.
14. Clip in the 3 wiring harness clips (1).
15. Connect the turbocharger wastegate wiring harness plug (2).

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16. Install the air cleaner outlet front duct and the air cleaner outlet rear duct.
17. Install the 2 air cleaner outlet duct clamps (5) and tighten.
18. Install the positive crankcase ventilation hose (4) to the positive crankcase ventilation heater.
19. Connect the camshaft position sensor wiring harness plug (3) and the positive crankcase ventilation heater wiring harness plug (6).
20. Connect the mass air flow wiring harness plug (1) and clip the wiring harness clip (2) to the air cleaner assembly.

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21. Clip in the 5 wiring harness clips (2, 3, 7).
22. Connect the exhaust pressure sensor wiring harness plug (5) and the fuel injection pump wiring harness plug (4).
23. Connect the intake manifold temperature sensor wiring harness plug (6).
24. Connect the fuel rail pressure regulator wiring harness plug (1).

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25. Install the 2 wiring harness conduit bolts (1) and tighten to 9 N·m (80 lb in) .
26. Connect the fuel injector connector wiring harness plug (2).

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27. Clip the 2 wiring harness clips (2) to the brackets.
28. Connect the glow plug connector wiring harness plug (1).
29. Connect the throttle body wiring harness plug (3).
30. Connect the engine coolant temperature sensor wiring harness plug (4).

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31. Connect the backup lamp switch wiring harness plug (2) and clip the wiring harness clip (1) to the exhaust gas recirculation tank.

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32. Clip the 4 wiring harness clips (1, 5) to the brackets.
33. Connect the exhaust gas recirculation vacuum regulator solenoid valve wiring harness plug (2).
34. Connect the exhaust temperature sensor wiring harness plug (4).
35. Connect the heated oxygen sensor wiring harness plug (3).
36. Connect the turbocharger wastegate actuator valve wiring harness plug (6).

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37. Connect the wiring harness connection adapter plug (4).
38. Install the wiring harness plug (1) to the front compartment fuse block housing.
39. Install the wiring harness ground cable (3) and the wiring harness ground cable nut (2) and tighten to 9 N·m (80 lb in) .
40. Install the front compartment fuse block. Refer to Front Compartment Fuse Block Replacement .

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41. Install the battery tray. Refer to Battery Tray Replacement .
42. Install the engine control module bracket along with the engine control module to the battery tray.
43. Clip in the 2 wiring harness clips (3).
44. Connect the 2 engine control module wiring harness plugs (2) to the engine control module (1).
45. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .

Battery Replacement - Diesel with Start/Stop System > < Engine Control Module Wiring Harness Replacement - 1.7L LPL, LPV