Go to step 10.
NO -
Replace the HandsFreeLink control unit See: Accessories and Optional Equipment/Cellular Phone/Communications Control Module/Service and
Repair.?
10. Disconnect the dashboard wire harness 20P connector from the cable reel.
11. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 2 and body ground.
Is there continuity?
YES -
Repair a short to body ground in the wire between the HandsFreeLink control unit and the cable reel.?
NO -
Replace the cable reel See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly / Spiral Cable/Service and Repair.?
Without Navigation
DTC Troubleshooting: B1780
DTC B1780:
HandsFreeLink steering wheel switch line short (without navigation)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
1. Connect the HDS to the DLC.
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0), then start the engine and turn the steering wheel from lock to lock several times.
4. Check for DTCs with the HDS.
Is DTC B1780 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time.?
5. Turn the ignition switch to LOCK (0).
6. Do the HFL switch test See: Accessories and Optional Equipment/Cellular Phone/Testing and Inspection/Component Tests and General
Diagnostics/HFL Switch Test.
