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 or the climate control unit. Initial Inspection and Diagnostic Overview�
2. Do the Navi system link, '07-09 models, '10-11 models Navigation System Diagnostic Mode.�
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 control does not work" in the navigation system symptom troubleshooting, '07-09 model '10 model Voice Control Does Not Work/Respond (10 Model).�
NO -
Go to step 11.
3. Turn the ignition switch to LOCK (0).
4. Disconnect audio-navigation unit connector F (5P) ('07-09 models), or D (12P) ('10-11 models).
5. Disconnect the climate control unit 36P connector.
6. '07-09 models: Check for continuity between the following terminals of the climate control unit 36P connector and audio-navigation unit connector F (5P).
Is there continuity?
YES -
Go to step 8.
NO -
Repair an open in the wire(s) between the climate control unit and the audio-navigation unit.�
7. '10-11 models: Check for continuity between the following terminals of the climate control unit 36P connector and audio-navigation unit connector D (12P).
Is there continuity?
YES -
Go to step 8.
NO -
Repair an open in the wire(s) between the climate control unit and the audio-navigation unit.�
8. '07-09 models: Check for continuity between body ground and audio-navigation unit connector F (5P) terminals No. 2, 3, and No. 4 individually.
Is there continuity?
YES -
Repair a short to body ground in the wire(s) between the climate control unit and the audio-navigation unit.�
NO -
Go to step 10.
9. '10-11 models: Check for continuity between body ground and audio-navigation unit connector D (12P) terminals No. 5, 6, and No. 12 individually.
Is there continuity?
YES -
Repair a short to body ground in the wire(s) between the climate control unit and the audio-navigation unit.�
NO -
Go to step 10.
10. Reconnect the climate control unit 36P connector.
11. Disconnect audio-navigation unit connector F (5P) ('07-09 models) or D (12P) ('10 model).
12. '07-09 models: Connect audio-navigation unit connector F (5P) No. 2, 3, and No. 4 terminals with a jumper wire.
13. '10-11 models: Connect audio-navigation unit connector D (12P) terminals No. 5, 6, and No. 12 with a jumper wire.
14. Turn the ignition switch to ON (II).
15. Press and hold the AUTO and OFF buttons.
Does the VENT and HEAT indicator turn on?
YES -
Do the audio-navigation unit check, '07-09 models, '10-11 models Navigation System Diagnostic Mode.�
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.�