ECM Inspection

ECM INSPECTION

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




1. REMOVE FLOOR MAT BRACKET

2. PREPARATION

(a) Disconnect the three connectors from the ECM.




(b) Remove the locks as shown in the illustration so that the tester probe(s) can easily come in.

CAUTION: Pay attention to sections "A" and "B" in the illustration which can easily be broken.

(c) Reconnect the three connectors to the ECM.

3. INSPECT VOLTAGE OF ECM




(a) Turn the ignition switch ON.




(b) Measure the voltage between each terminal of the wiring connectors.

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




Terminal Identification - Except 7A-FE with Automatic




Terminal Identification - 7A-FE with Automatic




Standard Values

4. INSPECT RESISTANCE OF ECM

(a) Turn the ignition switch OFF.
(b) Disconnect the three connectors from the ECM.




(c) Measure the resistance between each terminal of the wiring connectors.




Standard Values

CAUTION:
- Do not touch the ECM terminal:.
- The tester probe should be inserted in the wiring connector from the wiring side.

5. INSTALL ECM




(a) Insert the ECM to the bracket.
(b) Connect the three connectors to the ECM.




6. INSTALL FLOOR MAT BRACKET