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For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2008 🢒 VUE - FWD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Generator Control Module 3-Phase Cable Assembly Replacement

Removal Procedure

    Object Number: 1998156 Size: SH
  1. Disconnect the hybrid battery. Refer to Hybrid Battery Service Disconnect/Connect .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Remove the drive belt. Refer to Drive Belt Replacement .
  4. Drain the cooling system. Refer to Cooling System Draining and Filling .
  5. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  6. Unclip the battery positive cable jumper block (1) from the engine control module (ECM) bracket (4).
  7. Disconnect the ECM electrical connectors (2) and the transmission control module (TCM) electrical connector (3).

    8. Object Number: 1998167 Size: SH
  8. Remove the ECM bracket bolts (1), nuts (2) and ECM bracket (3).

    9. Object Number: 1998181 Size: SH
  9. Remove the generator control module cover bolts (1) and cover (2).

    10. Object Number: 1998192 Size: SH

    Caution: To help avoid personal injury, additional precautions must be taken prior to working on the generator control module or the generator starter. After removing the 36V battery cables from the generator battery, remove both engine wiring harness connectors from the generator control module. Wait at least 5 minutes and then remove the generator control module cover. Verify voltage levels at all 36V, 12V, and 3-phase connections, are less than 3 volts using a DMM before proceeding.

  10. Check the generator control module for voltage potential, in order to ensure that the module has been disabled.
    11. 10.1. Measure from the 36-volt positive terminal (3) to a known good chassis ground. The voltage should be less than 3 volts.
    10.2. Measure from the 12-volt positive terminal (4) to a known good chassis ground. The voltage should be less than 3 volts.
    10.3. Measure from the ground terminal (2) to a known good chassis ground, checking for continuity.

    Caution: To help avoid personal injury, always treat the 3-phase cable and connectors as if voltage is present and as if the surface of all parts of the cable is hot.

  11. Verify that the generator control module 3-phase cables are disabled.
    12. 11.1. Measure from each phase 1, 2 and 3 connection (1) to a known good chassis ground. The voltage should be less than 3 volts.
    11.2. After verifying that there is no voltage present, the generator control module 3-phase cables can now be removed from the generator control module.
    11.3. If 3 volts or more is present, repeat the disconnect procedure. Refer to Hybrid Battery Service Disconnect/Connect .

    Object Number: 1999097 Size: SH
  12. Remove the battery positive terminal block nuts (1) and reposition the battery positive terminal block (2).
  13. Remove the 3-phase cable terminal block nuts (3) and reposition the 3-phase cable terminal block (4).

    14. Object Number: 1998212 Size: SH
  14. Remove the bolt securing the 3-phase cables to the oil level indicator bracket.

    15. Object Number: 1998216 Size: SH
  15. Disconnect the upper radiator hose from the cylinder head and secure it out of the way.
  16. Disconnect the engine wiring harness electrical connectors next to the generator starter and secure them out of the way.
  17. Remove the upper generator starter bolt (1).
  18. Raise the vehicle and disconnect the air conditioning (A/C) compressor hose assembly lines from the A/C compressor. Refer to Compressor Hose Assembly Replacement .
  19. Remove the lower generator starter bolts (2).
  20. Remove the generator starter from the vehicle with the 3-phase cables.

    21. Object Number: 1998268 Size: SH
  21. Remove the generator starter cover bolts (1) and the 3-phase cable bracket bolts (2).
  22. Remove the 3-phase cable nuts underneath the cover.

    23. Object Number: 1998279 Size: SH
  23. Remove the 3-phase cable bolts (1).

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1998279 Size: SH
  1. Install the 3-phase cable bolts (1) to the generator starter.

    2. Tighten
    Tighten the nuts and bolts to 8 N·m (71 lb in).

  2. Install the 3-phase cable nuts underneath the generator starter cover.

    3. Tighten
    Tighten the nuts to 8 N·m (71 lb in).


    Object Number: 1998268 Size: SH
  3. Install the generator starter cover bolts (1) and the 3-phase cable bracket bolts  (2).

    4. Tighten
    Tighten the bolts to 5 N·m (44 lb in).


    Object Number: 1998216 Size: SH
  4. Install the generator starter to the vehicle with the 3-phase cables.
  5. Install the lower generator starter bolts (2).

    6. Tighten
    Tighten the bolts to 58 N·m (43 lb ft).

  6. Install the A/C compressor hose assembly lines to the A/C compressor. Refer to Compressor Hose Assembly Replacement .
  7. Install the upper generator starter bolt (1).

    8. Tighten
    Tighten the bolt to 58 N·m (43 lb ft).

  8. Connect the engine wiring harness electrical connectors next to the generator starter.
  9. Install the upper radiator hose to the cylinder head.

    10. Object Number: 1998212 Size: SH
  10. Install the bolt securing the 3-phase cables to the oil level indicator bracket.

    11. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1999097 Size: SH
  11. Install the 3-phase cable terminal block (4) and nuts (3).

    12. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  12. Install the battery positive terminal block (2) and nuts (1).

    13. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1998181 Size: SH
  13. Install the generator control module cover bolts (1) and cover (2).

    14. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1998167 Size: SH
  14. Install the ECM bracket (3), bolts (1) and nuts (2).

    15. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1998156 Size: SH
  15. Connect the ECM electrical connectors (2) and the TCM electrical connectors (3).
  16. Clip in the battery positive cable jumper block (1) to the ECM bracket (4).
  17. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  18. Fill the cooling system. Refer to Cooling System Draining and Filling .
  19. Install the drive belt. Refer to Drive Belt Replacement .
  20. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  21. Connect the hybrid battery. Refer to Hybrid Battery Service Disconnect/Connect .
  22. Using a Tech 2, command an autostart in order to verify that the system is working properly.