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Home >> Honda >> 2009 >> CR-V 2WD L4-2.4L >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Component Tests and General Diagnostics >> Navigation Communication Line Circuit Troubleshooting (With Navigation)
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Navigation Communication Line Circuit Troubleshooting (With Navigation)




Navigation Communication Line Circuit Troubleshooting

1. Operate the climate control system in several modes.

Is the climate control system OK?
YES - Go to step 2.

NO - Do the self-diagnostic function with the HDS How to Troubleshoot the Climate Control System or climate control unit. How to Troubleshoot the Climate Control System


2. Do the Navi system link. Navigation System Diagnostic Mode (With Navigation)

Is the Air-Con or TALK/BACK icon red?
YES -
- If Air-con icon is red, go to step 3.

- If TALK/BACK icon is red, go to "voice recognition does not work" in the navigation system symptom troubleshooting. Symptom Troubleshooting


NO - Go to step 9.


3. Turn the ignition switch to LOCK (0).

4. Disconnect navigation unit connector F (5P).

5. Disconnect the climate control unit 36P connector.

6. Check for continuity between the following terminals of the climate control unit 36P connector and navigation unit connector F (5P).





Is there continuity?
YES - Go to step 7.

NO - Repair open in the wire(s) between the climate control unit and the navigation unit.






7. Check for continuity between body ground and navigation unit connector F (5P) No. 2, 3, and No. 4 terminals individually.

Is there continuity?
YES - Repair short to body ground in the wire(s) between the climate control unit and the navigation unit.

NO - Go to step 8.






8. Reconnect the climate control unit 36P connector.

9. Disconnect navigation unit connector F (5P).

10. Connect navigation unit connector F (5P) No. 2, 3, and No. 4 terminals with a jumper wire.

11. Turn the ignition switch to ON (II).






12. Press and hold the AUTO and OFF buttons.

Does the VENT and HEAT indicator turn on?
YES - Do the navigation unit check. Navigation System Diagnostic Mode (With Navigation)

NO - Substitute a known-good climate control unit, and recheck. If the symptom goes away, replace the original climate control unit. Climate Control Unit Removal/Installation (With Climate Control)






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