- YES - go to step 2.
- NO - go to step 14.
Start the engine. Maintain the engine speed at 2,000 rpm for 1 minute.
Does the charge system indicator go out?
- YES - The charge system indicator circuit is OK. Proceed to troubleshooting the alternator and regulator circuits.
- NO - go to step 3.
3. Perform the instrument panel module self-test procedure. Does the charge system indicator light up?
- YES - go to step 4.
- NO - Replace the instrument panel control module.
4. Turn the ignition key to position «OFF».
5. Disconnect the 4P alternator connector.
6. Switch on the ignition by turning the key to position «ON» (II).
Note. The charge system indicator may turn on and then turn off. Does the charge system indicator go out?
- YES - Replace alternator or repair alternator.
- NO - go to step 7.
7. Turn the ignition key to position «OFF».
8. Connect Honda diagnostic system (HDS) to data link connector (DLC).
9. Switch on the ignition by turning the key to position «ON» (II).
10. Verify that the HDS is communicating with the vehicle and the ECM. If not, troubleshoot the DLC connector circuit.
11. Connect the SCS service test signal circuit to the HDS diagnostic system, then turn the ignition key to «OFF».
Note. This action is necessary to prevent failure of the engine control unit (ECM).
12. Disconnect the 44P connector B of the ECM.
13. Check continuity between ECM connector terminal B15 and «weight» body.
Is the connection continuous?
- YES - Repair open in the wire between the alternator and the ECM.
- NO - Update the ECM if it does not have the latest software, or temporarily substitute a known-good ECM, then recheck. If the problem persists with a known-good ECM, replace the removed ECM.
14. Perform the instrument panel unit self-diagnosis procedure. Does the charge system indicator light up?
- YES - go to step 15.
- NO - Replace the instrument cluster control module.
15. Turn the ignition key to position «OFF».
16. Disconnect the 4P generator connector.
17. Connect terminal No. 3 4P of the alternator connector to «mass» body with a jumper wire.
18. Turn on the ignition by turning the key to position «ON» (II). Does the charge system indicator light up?
- YES - Replace the alternator or repair it.
- NO - go to step 19.
19. Connect Honda diagnostic system (HDS) to data link connector (DLC).
20. Turn on the ignition by turning the key to position «ON» (II).
21. Verify that the HDS is communicating with the vehicle and the ECM. If not, troubleshoot the DLC circuit.
22. Connect the SCS service test signal circuit to the HDS diagnostic system, then turn the ignition key to «OFF».
Note. This action is necessary to prevent damage to the ECM.
23. Disconnect the 44P connector B of the ECM/PCM control unit.
24. Check the continuity of the wire between terminal B15 of the ECM connector and «weight» body.
Is the connection continuous?
- YES - Update the ECM if it does not have the latest software, or temporarily substitute a known-good ECM, then recheck. If the problem persists with a known-good ECM, replace the removed ECM.
- NO - Repair an open in the wire between the alternator and the ECM.