Bendix

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.

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.
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.

Checking Battery Supply:

8. Check main power supply by connecting a voltmeter between pin 5 (brown) in ECU connector and ground.

Reading: approx. 12 volts

9. If no voltage registers, check wire between ECU and fuse-box located behind the center console ash tray. Check fuse #1 and wiring to battery (incl. battery terminals). Repair as necessary.

Separating Ignition Coil From Power Stage:

10. Check ignition coil and power stage by disconnecting connectors.
11. Remove the two mounting bolts (Torx) and separate the ignition coil from the power stage.

Measuring Positive And Negative Side Of Coil:

12. Measure resistance across the LT terminals (+ and -) as shown in the figure.

Reading: approx. 0.5 ohm

If reading is different, replace and retest with new coil.

Measuring High Voltage Side Of Coil:

13. Measure resistance between HT terminal and each LT terminal as shown in the figure.

Reading: approx. 5 K ohms

If reading is different, replace and retest with new coil.

Checking "A" Terminal At Three Wire Connector:

14. Turn ignition ON.
15. Measure voltage between terminal "A" at three wire connector and ground.

Reading: approx. 12 volts

If there is no or low voltage, check blue wire to ignition switch and ignition control ECU connector pin 6. Repair as needed. If no voltage is available at ignition switch, check switch (see IGNITION SWITCH).
16. Crank engine.

Reading: no less then 10.5 volts

If reading is different, check battery and terminals. Repair as needed.
17. Turn ignition OFF.

Checking "B" Terminal At Three Wire Connector:

18. Measure resistance between terminal "B" at three wire connector and ground.

Reading: no more then 0.1 ohm

If reading is to high, clean or replace ground connection or wire.

Checking "A" Terminal At Two Wire Connector:

19. Measure resistance between terminal "A" at two wire connector and ground.

Reading: no more then 0.1 ohm

If reading is to high, clean or replace ground connection or wire.

Checking "B" Terminal At Two Wire Connector:

20. Connect a buzzer between terminal "B" at two wire connector and pin 16 at ignition ECU connector. Buzzer should sound if wire is intact. If not, repair wire or connectors.
21. If engine will not start after all faults have been repaired or no fault has been found in all of the above listed tests, problem lies in the ignition control ECU or power stage. Verification can only be made by replacing the ECU or power stage with a known good unit.
22. After testing, disconnect all test equipment, remount the ignition coil, reconnect all connectors (including the ECU connector) and remount all panels.