Before troubleshooting the immobilizer system, troubleshoot any ECM/PCM with Diagnostic Trouble Codes (DTCs),and make sure the ECM/PCM has no malfunction.
Note these items before troubleshooting:
1. | Turn the ignition switch ON (II) with proper key. |
2. | Check to see if the immobilizer indicator light comes on. Does the indicator light blink? YES - Go to 3. NO - Check for these problems:n
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3. | Remove the steering column covers. |
4. | Disconnect the 7P connector from the immobilizer control unit-receiver.
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5. | Check for voltage between the immobilizer control unit-receiver 7P connector No. 7 terminal and body ground. Is there battery voltage? YES - Go to 6. NO - Check for these problems:n
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6. | Check for voltage between the immobilizer control unit-receiver 7P connector No. 6 terminal and body ground with the ignition switch 0N (II). Is there battery voltage? YES - Go to 7. NO - Check for these problems:
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7. | Check for voltage between the immobilizer control-unit receiver 7P connector No. 4 terminal and body ground with the parking brake lever pulled, then released. Is there 1 V or less (pulled), then 5 V or more? (Released) YES - Go to 8. NO - Check for these problems:n
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8. | Check for continuity between the immobilizer control unit-receiver 7P connector No. 1 terminal and body ground. Is there continuity? YES - Go to 9. NO - Check for these problems:n
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9. | Check for continuity between the immobilizer control unit-receiver 7P connector No. 2 terminal and ECM/PCM terminal E27. Is there continuity? YES - Go to 10. NO - Repair open in the RED/BLU wire.n |
10. | Check for continuity between the immobilizer control unit-receiver 7P connector No. 2 terminal and the Imoes unit connector terminal No. 2. Is there continuity? YES - Replace the immobilizer control unit-receiver. After replacing the immobilizer control unit-receiver, rewrite the unit with a Honda PGM- Tester.n NO - Repair open in the RED/BLU wire. If the harness is OK, check to see if there is any input test for the Imoes unit.n |