gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

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NOTE:  The ECM has the capability to be programmed so that the during cruise control the exhaust brake may be used to maintain the set speed.

Refer to the Exhaust Brake Option Programming for ECM programming. See: Engine, Cooling and Exhaust/Exhaust System/Exhaust Brake/Service and
Repair/Exhaust Brake Option Programming

Cruise Control System Check

Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls Connector End Views or Engine Control Module (ECM) Connector End Views

Chart 1 of 2

Cruise Control|System Diagnosis|Page 1529 > < Cruise Control|System Diagnosis