Diagnostic Flow Charts

NOTE: The following figures cover all models except Lumina APV, Silhouette & Trans Sport

Fig 1: Cruise Control Diagnosis

Courtesy of GENERAL MOTORS CORP.

Fig 2: Servo Test (1 of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Servo Test (2 of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 4: Cruise "OFF/ON/RESUME/ACCEL" Switch Test

Courtesy of GENERAL MOTORS CORP.