GM Service Manual Online
For 1990-2009 cars only

High Intensity Discharge Headlamp Ballast Replacement STS


Object Number: 1737612  Size: MF

Callout

Component Name

Warning: The high intensity discharge system produces high voltage and current. To reduce the risk of severe shocks and burns:

   • Never open the high intensity discharge system ballast or the arc tube assembly starter.
   • Never probe between the high intensity discharge system ballast output connector and the arc tube assembly.

Warning: The high intensity discharge system produces high voltage and current. In order to reduce the risk of severe shocks and burns, the battery negative cable must be disconnected any time service work is being performed on or around the high intensity discharge system.

Preliminary Procedure

Remove the headlamp assembly. Refer to Headlamp Replacement.

1

Ballast Access Cover Screw

Caution: Refer to Fastener Caution in the Preface section.

Tighten
3 N·m (27 lb in)

2

Ballast Access Cover

3

Headlamp Ballast Assembly

Tip
Disconnect all electrical connectors before attempting removal.

High Intensity Discharge Headlamp Ballast Replacement STS-V


Object Number: 2094220  Size: SF

Callout

Component Name

Warning: The high intensity discharge system produces high voltage and current. To reduce the risk of severe shocks and burns:

   • Never open the high intensity discharge system ballast or the arc tube assembly starter.
   • Never probe between the high intensity discharge system ballast output connector and the arc tube assembly.

Warning: The high intensity discharge system produces high voltage and current. In order to reduce the risk of severe shocks and burns, the battery negative cable must be disconnected any time service work is being performed on or around the high intensity discharge system.

Preliminary Procedure

Remove the headlamp assembly. Refer to Headlamp Replacement.

1

Ballast Access Cover Screw

Caution: Refer to Fastener Caution in the Preface section.

Tighten
Hand tighten the screw.

2

Ballast Access Cover

3

Headlamp Ballast

Tip
Disconnect the two electrical connectors as ballast is being removed from the headlamp housing.