Engine Control Module: Testing and Inspection

ECM INPUT/OUTPUT SIGNAL INSPECTION




1. ECM is located under the passenger seat. For this inspection, remove passenger seat.




2. Remove ECM harness protector.




3. Perform all voltage measurements with the connectors connected.
Improve tester probe as shown to perform tests easily.













EXPECTED ECM TERMINAL VALUES




ECM TERMINAL ID

NOTE: Testing of circuit voltages can be done at the ECM connector by CAREFULLY backprobing the connector. Use a high-quality digital DVOM.