Audio remote switch does not work properly

NOTE:

Check the vehicle battery condition first (see BATTERY TEST ).
Check the connectors for poor connections or loose terminals.

Turn the ignition switch to ON (II).
Turn on the audio unit, and check the audio remote switch operation (volume up, volume down, CH (UP), CH (DOWN), MODE).
Is the audio remote switch operation OK?

YES -Intermittent failure, the audio remote switch is OK at this time. Check for loose connections.

NO -Go to step 3.
Test the audio remote switch (see AUDIO REMOTE SWITCH TEST ).
Is the audio remote switch OK?

YES -Go to step 4.

NO -Replace the audio remote switch (see STEERING WHEEL DISASSEMBLY/REASSEMBLY ).
Turn the ignition switch to LOCK (0).
Remove the audio unit (see SEEK STOP TEST ).
NOTE: Eject all the CDs before removing the audio unit and CD changer to prevent damaging the CD player's load mechanism.
Disconnect audio unit connector A (20P).

Reconnect the audio remote switch, and measure the resistance between audio unit connector A (20P) terminals No. 3 and No. 11 as specified in the table.

Fig 1: Measuring Resistance Between Audio Unit Connector (20P) Terminals No. 3 And No. 11

Courtesy of AMERICAN HONDA MOTOR CO., INC.

AUDIO REMOTE SWITCH TABLE

AUDIO REMOTE SWITCH CHART

Button held down	VOL DOWN	VOL UP	CH (-)	CH (+)	MODE	No button pressed
Resistance	about 100 Ω	about 357 Ω	about 775 Ω	about 1.7 kΩ	about 3.7 kΩ	about 10 kΩ

Is the resistance OK?

YES -Go to step 8.

NO -Repair a short or high resistance in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel (see CABLE REEL REPLACEMENT ).

Check for continuity between body ground and audio unit connector A (20P) terminals No. 3 and No. 11 individually.

Fig 2: Checking Continuity Between Body Ground And Audio Unit Connector (20P) Terminals No. 3 And No. 11

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short to body ground in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel (see CABLE REEL REPLACEMENT ).

NO -Substitute a known-good audio unit (see Audio Unit Removal/Installation ) and recheck. If the symptom/indication goes away, replace the original audio unit (see Audio Unit Removal/Installation ).