TL V6-3.5L (2007)
7. Check for continuity between body ground and audio unit connector C (40P) terminal No. 13 and No. 12 individually.
Is there continuity?
YES - Short to body ground in the wire(s) between HandsFreeLink control unit and audio unit. Replace the affected shielded harness.
NO - Go to step 8.
8. Check for continuity between the terminals of audio unit connector C (40P) according to the table.
Is there continuity between any of the terminals?
YES - Short in the wire(s) between HandsFreeLink control unit and audio unit. Replace the appropriate shielded harness.
NO - Substitute a Known-good HandsFreeLink control unit and recheck. If the symptom/indication goes away, replace the original HandsFreeLink
control unit. If the symptom/indication is still present, replace the audio unit.
9. Turn the ignition switch OFF.
10. Disconnect HandsFreeLink control unit 28P connector and audio unit connector C (40P).
11. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 3 and audio unit connector C (40P) terminal No. 14.
Is there continuity?
YES - Go to step 12.
NO - Repair open in the wire between HandsFreeLink control unit and audio unit.
