Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSHONDA2010CROSSTOUR 2WD V6-3.5LREPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTNAVIGATION SYSTEMTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSNAVIGATION COMMUNICATION LINE CIRCUIT TROUBLESHOOTING (WITH NAVIGATION)
2010 Honda Crosstour 2WD V6-3.5L
Navigation Communication Line Circuit Troubleshooting (With Navigation)
2010 Honda Crosstour 2WD V6-3.5LSECTION 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.οΏ½
2. Do the System Links in System Diagnostic Mode.
Is the A/C icon red?
YES -
Go to step 3.
NO -
Go to step 8.
3. Turn the ignition switch to LOCK (0).
4. Disconnect navigation unit connector B (32P).
5. Disconnect climate control unit connector B (12P).
6. Check for continuity between the following terminals of climate control unit connector B (12P) and navigation unit connector B (32P).
Is there continuity?
YES -
Go to step 7.
NO -
Repair an open in the wire(s) between the climate control unit and the navigation unit.οΏ½
7. Check for continuity between body ground and climate control unit connector B (12P) terminals No. 10, No. 11, 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 navigation unit.οΏ½
NO -
Reconnect climate control unit connector B (12P), then go to step 9.
8. Turn the ignition switch to LOCK (0).
9. Connect navigation unit connector B (32P) terminals No. 13, No, 28, and No. 29 with jumper wires.
10. Press and hold both the AUTO and the ON/OFF buttons, then turn the ignition switch to ON (II).
11. Check the mode indicator displaying in the audio-HVAC subdisplay unit.
Is the HEAT/VENT indicator solid with the remaining icons blinking?
YES -
Substitute a known-good navigation unit, and recheck. If the symptom goes away, replace the original navigation unit Service and Repair.οΏ½
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 Navigation).οΏ½
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.