Savana 3500 V8-6.6L DSL Turbo VIN 6 (2007)
Cruise Control: Testing and Inspection
Cruise Control Inoperative/Malfunctioning (6.6L)
Diagnostic Aids
To avoid a misdiagnosis, inspect for the following:
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Proper operation of the stop lamps. Refer to Exterior Lighting Systems Description and Operation.
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The throttle linkage is not binding.
Electro magnetic interference (EMI) on the speed sensor signal circuit may cause erratic cruise control operation.
Conditions for Enabling Cruise Control
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The vehicle speed is greater than 40 km/h (25 mph).
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The vehicle is not in PARK, REVERSE, NEUTRAL, or 1st gear.
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The system voltage is between 12 volts and 16 volts.
Test