Removal Procedure

Fig 1: Negative Battery Cable

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Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the engine cover. Refer to Engine Cover Replacement .
Disconnect the engine wiring harness electrical connector (1) from the glow plug control module.

Fig 2: Positive Battery Cable

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Disconnect the positive battery cable (1) from the glow plug control module.
Fig 3: Glow Plug Control Module Bracket
Courtesy of GENERAL MOTORS CORP.

Remove the glow plug control module bolts (1).
Remove the glow plug control module (2).