Pinout Values and Diagnostic Parameters

ECM INSPECTION:

HINT: The MFI circuit can be checked by measuring the voltage and resistance at the wiring connectors of the ECM.

1. INSPECT VOLTAGE OF ECM.





- Check the voltage between each terminal of the wiring connectors.
- Turn the ignition switch ON.
- Measure the voltage at each terminal.

HINT:
- Perform all voltage measurements with the connectors connected.
- Verify that the battery voltage is 11 V or more when the ignition switch is ON.





Voltage at ECM Wiring Connectors

2. INSPECT RESISTANCE OF ECM.

NOTICE: Do not touch the ECM terminals.





- The tester probe should be inserted into the wiring connector from the wiring side.
- Check the resistance between each terminal of the wiring connectors.
- Disconnect the connectors from the ECM. Measure the resistance at each terminal.





Resistance of ECM Wiring Connectors