Replace the HandsFreeLink control unit See: Accessories and Optional Equipment/Cellular Phone/Communications Control Module/Service and
Repair.?
16. Turn the ignition switch to LOCK (0).
17. Disconnect audio-navigation unit connector B (24P) and the navigation display unit 28P connector.
18. Check for continuity between body ground and navigation display unit 28P connector terminals No. 4 and No. 5 individually.
Is there continuity?
YES -
There is a short to body ground in the wire(s) between the navigation display unit and the audio-navigation unit. Replace the affected shielded
harness.?
NO -
Go to step 19.
19. Check for continuity between the terminals of navigation display unit 28P connector according to the table.
Is there continuity between any of the terminals?
YES -
There is a short in wires between the navigation display unit and the audio-navigation unit. Replace the affected shielded harness.?
NO -
Go to step 20.
20. Connect audio-navigation unit connector B (24P) terminals No. 18 and No. 19 with a jumper wire.
21. Check for continuity between navigation display unit 28P connector terminals No. 4 and No. 5.
