Yukon/Denali XL 1500 2WD V8-6.0L VIN U (2005)
Headlamp Igniter Module: Service and Repair
HID HEADLAMP BALLAST REPLACEMENT
REMOVAL PROCEDURE
CAUTION:
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The high intensity discharge system produces high voltage and current. To reduce the risk of severe shocks and burns:
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Never open the high intensity discharge system ballast or the arc tube assembly starter.
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Never probe between the high intensity discharge system ballast output connector and the arc tube assembly.
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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.
1. Disconnect the battery negative cable.
2. Remove the headlamp.
3. Remove all rubber covers from the headlamp housing.
4. Press the retaining clip (2) downward to release the clip and disconnect the electrical connector (1) from the bulb.
5. Remove all bulbs to prevent damage and to allow easy removal of ballast harness.
6. Attach a suitable length of wire to the ballast harness electrical connector (1).
7. If necessary, turn the headlamp adjuster counterclockwise to allow ample space to release the electrical connector.
8. Pull the ballast harness (1) from the opposite end to allow the wire (2) to flow through the inside of the headlamp (3).
9. Disconnect the wire (2) from the ballast harness (1).
INSTALLATION PROCEDURE
