Workshop Hints

Workshop Hints





Power Supply Testing
1. ECM (DME)
2. EGS or SMG (if equipped)
3. ECM main relay
4. Fuel injector relay
5. SMG (if equipped) hydraulic pump relay
^ EGS (if equipped) reverse light relay





Inadequate power and ground supply can result in:
1. No Start
2. Hard Starting (Long Crank Times)
3. Inaccurate Diagnosis Status or ECM (not found)
4. Intermitten/Constant Engine Emission/EML Light
5. Intermitten/Constant Driveability Problems

Power supply including fuses should be tested.
The ignition p

The Engine Control Module Relay (located in the Electronics Box) should be tested for:
1. Battery Voltage and Switched Ground (1)
2. Resistance (1)
3. Battery Voltage and Voltage Drop (2)