For Ignition ECU

This test will check only the wiring to the A/C control panel, to check control panel use testing procedure under FOR FUEL INJECTION ECU.


TESTING PROCEDURE:

NOTE: While trouble shooting, always check the wiring, fuses and connectors for good condition and routing. Use the wiring diagrams found in CHASSIS ELECTRICAL DIAGRAMS to supplement your testing efforts.

Accessing Ignition ECU Connector:

1. Turn ignition OFF.
2. Access ignition ECU by removing the panel under left hand side of instrument panel.
3. Remove ECU connector by pushing out the catch and folding out the wire cluster.

Checking Ground Connections:

4. Check ignition ECU ground connections at intake manifold. They should make good contact.

Removing Protective Cover:

5. Remove connector protective sleeve.
IMPORTANT: ^ Never check connections from the front. Connectors can get damaged and worsen the problem.
^ Check connections through the holes in the connector.
^ Connection pin numbers are printed on the connector side.

Checking Terminal Pins:

6. Check that terminal contacts have been pushed down evenly in connector.
7. If any connectors have been pushed down to far, poor connection may result.
8. Check wiring and connectors to A/C control panel.
a. Fault found, repair as needed.
b. No fault found, check A/C control panel as described under FOR FUEL INJECTION ECU.
9. Turn ignition OFF.

Assemble Connector:

10. Disconnect the test equipment. Reconnect the ECU and all other connectors, install the kick panel and glove compartment.