Fuel Injection ECU Input
TESTING PROCEDURE:NOTE: While trouble shooting, always check the wiring, fuses and connectors for good condition and routing. Use the wiring diagrams found in SCHEMATIC DIAGRAMS to supplement your testing efforts.
Color Code Legend:
Checking ECU Ground Connections:
1. Turn ignition OFF.
2. Access fuel injection ECU by removing the passenger side kick panel and glove compartment.
3. Check fuel injection ECU ground connections. They should make good contact and fit tight.
Removing ECU Connector:
4. Remove fuse #1 (located in central electric unit behind ash tray) to interrupt the power supply. Then remove the ECU connector by pressing up the latch and folding out the wire cluster.
Removing Protective Sleeve:
5. Remove connector protective sleeve and reinstall fuse #1 for testing.
CAUTION: ^ 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 Pin 35:
6. Turn ignition ON.
7. Connect a voltmeter between pin 35 at ECU connector and ground (checking ignition switch).
Reading: 12 volts
8. If not, check wiring and connectors. If no fault found, replace ignition switch and retest.
9. Crank starter motor.
Reading: 12 volts
If not, check wiring and connectors. If no fault found, replace ignition switch and retest.
10. Turn ignition OFF.
11. After testing, disconnect all test equipment, reconnect all connectors (including the ECU connector) and remount all panels.