Electric Cooling Fan
The electric cooling fan relays on Motronic ME 7 and Denso systems are controlled by the ECM. Cooling fan relays will set a DTC. Engine Coolant Temperature Sensor (ECT) faults are also monitored by the ECM and will set a DTC.
For more information on the self-diagnostic system, see one of the following articles in ENGINE PERFORMANCE.
- 1999 ME 7 System (Turbo):
- 2000 ME 7 System (Turbo):