On Board Diagnostics

G-models are equipped with a Cooling Fan With Integrated Control Unit. Cooling fan control module is integral to cooling fan motor and mounted to radiator fan shroud. Fan control module is OBD II capable, and will set a DTC in memory if a fault is detected. Engine Coolant Temperature Sensor (ECT) faults are also monitored by the ECM and will set a DTC.

To check for and erase stored DTCs with scan tool. See RETRIEVING & ERASING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. After repairs are completed check for and erase any DTCs stored in (ME-SFI) system. For more information on the self-diagnostic system, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.