Pinout Values and Diagnostic Parameters

INSPECTION OF ENGINE (ENGINE AND ECT) ECU

HINT:
* 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.






1. MEASURE VOLTAGE OF ECU

Voltage At ECU Wiring Connectors (except 4WD Automatic Trans.):

Check the voltage between each terminal of the wiring connectors.
* Remove the right kick panel.
* Turn the ignition switch to 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 above when the ignition switch is ON.






2. MEASURE RESISTANCE OF ECU

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

Resistance At Engine (and ECT) ECU Wiring Connectors:

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 wiring connectors.