Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Audio remote switch does not work properly (with navigation)
- Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
- Check the connectors for poor connections or loose terminals.
- Turn the ignition switch to ON (II).
- Turn on the audio-navigation unit and check the audio remote switch operation (volume up, volume down, CH +, CH -, MODE).
Is the audio-navigation unit operation OK?
YES -Intermittent failure, the audio remote switch is OK at this time. Check for loose connections.
NO -go to step 3.
- Turn the ignition switch to LOCK (0).
- Test the audio remote switch (see AUDIO REMOTE SWITCH TEST
).
Is the audio remote switch OK?
YES -go to step 5.
NO -Replace the audio remote switch (see AUDIO REMOTE SWITCH REPLACEMENT ), and recheck.
- Remove the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
- Disconnect audio-navigation unit connector A (24P).NOTE:
- Eject all the discs before removing the audio-navigation unit to prevent damaging the CD player's load mechanism.
- Remove the PC card before removing the audio-navigation unit.
- Reconnect the audio remote switch, and measure the resistance between audio-navigation unit connector A (24P) terminals No. 5 and No. 16 as specified in the table.Fig 1: Measuring Resistance Between Audio-Navigation Unit Connector A (24P) Terminals No. 5 And No. 16
Courtesy of AMERICAN HONDA MOTOR CO., INC.
AUDIO REMOTE SWITCH TABLE
AUDIO REMOTE SWITCH CHARTPosition 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 open or high resistance in the circuit between the audio-navigation 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-navigation unit connector A (24P) terminals No. 5 and No. 16 individually.Fig 2: Checking Continuity Between Body Ground And Audio-Navigation Unit Connector A (24P) Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair a short to body ground in the circuit between the audio-navigation unit and the audio remote switch. If the wires are OK, replace the cable reel (see CABLE REEL REPLACEMENT ).
NO -Replace the original audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.