gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Trailer Towing Relay|Diagrams|Page 16186 > < Trailer Towing Relay|Diagrams|Page 16184
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Trailer Towing Relay: Service and Repair

Trailer Brake Control Relay Replacement (1500)

Removal Procedure

1. Turn the ignition switch to the OFF position.

Note

Do not remove the spare wheel hoist.

2. Remove the spare tire and wheel assembly. Refer to Spare Wheel Hoist Replacement   (See: Maintenance/Wheels and Tires/Tires/Spare

Tire/Service and Repair) .

3. Disconnect the trailer brake control relay electrical connector.

Note

It is not necessary to completely remove the bolts.

4. Loosen, but do not remove, the trailer brake control relay bolts (1).

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