RDX L4-2.3L Turbo (2008)
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 (28P) according to the table.
Is there continuity?
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 goes away, replace the original HandsFreeLink control
unit. If the symptom does not go away, replace the audio unit.
9. Press the HFL talk button.
Does the MID display the HFL menu and the subdisplay show HandsFreeLink, when pressing the HFL talk button?
YES - Go to step 10.
NO - Go to step 14.
10. Turn the ignition switch to LOCK (0).
11. Disconnect HandsFreeLink control unit 22P connector and audio unit connector C (28P).
12. Check for continuity between HandsFreeLink control unit 22P connector No. 4 terminal and audio unit connector C (28P) No. 28 terminal.
Is there continuity?
YES - Go to step 12.
NO - Repair open in the wire between HandsFreeLink control unit and audio unit.
13. Check for continuity between body ground and HandsFreeLink control unit 22P connector No. 4 terminals.
