GM Service Manual Online
For 1990-2009 cars only

Left Side Harness Connections


    Object Number: 927874  Size: SH
  1. Remove the nut attaching the starter motor wiring harness to the generator stud.
  2. Disconnect the starter motor wiring harness from the generator stud.

  3. Object Number: 927844  Size: SH
  4. Disconnect the engine wiring harness from the generator.

  5. Object Number: 927853  Size: SH
  6. Disconnect the engine wiring harness from the oil pressure sensor.

  7. Object Number: 1690236  Size: SH
  8. Disconnect the engine wiring harness from the supercharger charge air bypass regulator solenoid valve.

  9. Object Number: 1690225  Size: SH
  10. Disconnect the engine wiring harness from the left camshaft position sensors.

  11. Object Number: 1690221  Size: SH
  12. Disconnect the engine wiring harness from the left camshaft position actuators.

  13. Object Number: 1690234  Size: SH
  14. Disconnect the engine wiring harness from the throttle body.

  15. Object Number: 1690232  Size: SH
  16. Disconnect the engine wiring harness from the evaporative emissions (EVAP) canister purge solenoid.

  17. Object Number: 1690220  Size: SH
  18. Disconnect the engine wiring harness from the left coil assembly harness.

  19. Object Number: 1699245  Size: SH
  20. Disconnect the engine wiring harness from the left camshaft cover.

  21. Object Number: 1690229  Size: SH
  22. Disconnect the engine wiring harness from the left side fuel injectors.

  23. Object Number: 1704357  Size: SH
  24. Disconnect the engine wiring harness starter connector from the starter wiring harness.

Right Side Harness Connections


    Object Number: 927786  Size: SH
  1. Disconnect the engine wiring harness from the air conditioning compressor.

  2. Object Number: 927846  Size: SH
  3. Disconnect the engine wiring harness from the oil level switch/temperature sensor.

  4. Object Number: 1690256  Size: SH
  5. Disconnect the engine wiring harness from the right camshaft position sensors.

  6. Object Number: 1690255  Size: SH
  7. Disconnect the engine wiring harness from the right camshaft position actuators.

  8. Object Number: 1690266  Size: SH
  9. Disconnect the engine wiring harness from the intake air temperature (IAT) sensor 2.

  10. Object Number: 1690263  Size: SH
  11. Disconnect the engine wiring harness from the supercharger inlet absolute pressure sensor (1), barometric pressure (BARO) sensor (2), manifold absolute pressure (MAP) sensor (3).

  12. Object Number: 1690254  Size: SH
  13. Disconnect the engine wiring harness from the right coil assembly harness.

  14. Object Number: 1699251  Size: SH
  15. Disconnect the engine wiring harness from the right camshaft cover.

  16. Object Number: 1690258  Size: SH
  17. Disconnect the engine wiring harness from the right side fuel injectors.

  18. Object Number: 1690259  Size: SH
  19. Disconnect the engine wiring harness from the engine coolant temperature (ECT) sensor at the rear of the right cylinder head.

  20. Object Number: 1690269  Size: SH
  21. Disconnect the engine wiring harness from the knock and crankshaft position sensor wiring harness.

  22. Object Number: 1788021  Size: SH
  23. Remove the engine wiring harness from the engine block.