Cruise Control System - 6.5L Diesel: Testing: Notes

NOTE: Manufacturer recommends use of Tech 1 Scan Tool for retrieving Diagnostic Trouble Codes (DTCs). Flash code diagnostics using the Malfunction Indicator Light (MIL) are also available.

If cruise control is inoperative, and SERVICE ENGINE SOON (MIL) light is on, see TESTS W/CODES - 6.5L DIESEL article. If cruise control is inoperative and no diagnostic trouble codes are stored, check for faulty cruise control switch, open wiring, or poor connections.