Pinout Values and Diagnostic Parameters

ELECTRONIC CONTROLLED UNIT (ECU)






INSPECTION OF ECU

1. MEASURE VOLTAGE OF ECU

NOTE:
^ The ECU itself cannot be checked directly.
^ The EFI circuit can be checked by measuring the resistance and voltage at the wiring connectors of the ECU.

Check the voltage at the wiring connectors.
^ Remove the right kick panel.
^ Turn the ignition switch ON.
^ Measure the voltaqe at each terminal.

NOTE:
1. Perform all voltage measurements with the connectors connected.
2. Verify that the battery voltage is 11 V or above when the ignition switch is ON.





Voltage at ECU Wiring Connectors





2. MEASURE RESISTANCE OF ECU

CAUTION:
^ Do not touch the ECU terminals.
^ The tester probe should be inserted into the wiring connector from the wiring side.

Check the resistance between each terminal of the wiring connector.
^ Remove the right kick panel.
^ Unplug the wiring connectors from the ECU.
^ Measure the resistance between each terminal of the wirno connectors.





Resistance at ECU Wiring Connectors