Audio Unit Button Illumination Does Not Work
- Turn the ignition switch to ON (II).
- Turn the headlight switch to the parking light position.
- Check the illumination of the audio unit buttons.
Are the buttons illuminated?
YES - Intermittent problem: the audio unit is OK at this time. Check for loose or poor connections at audio unit connector A (20P).
NO - Go to step 4.
- Check the illumination of several other buttons not related to the audio system.
Are the buttons illuminated?
YES - Go to step 5.
NO - Troubleshoot the interior lights. Start by checking the No. 10 (15 A) fuse in the passenger's under-dash fuse/relay box. If the fuse is OK, check for an open in the wire between the passenger's under-dash fuse/relay box and the audio unit.
- Turn the ignition switch to OFF.
- Remove the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and disconnect audio unit connector A (20P).NOTE: Eject all the discs before removing the audio unit to prevent damaging the CD player's load mechanism.
- Disconnect gauge control module connector B (36P).
- Check for continuity between audio unit connector A (20P) No. 19 terminal and gauge control module connector B (36P) No. 36 terminal.Fig 1: Checking For Continuity Between Connector A (20P) Terminal 19 & Gauge Control Module Connector B (36P) Terminal 36
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Go to step 9.
NO - Repair an open in the wire between the gauge control module and the audio unit.
- Turn the ignition switch to ON (II).
- With the headlight switch still on, check for voltage between audio unit connector A (20P) No. 9 terminal and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES - Check the connections at the audio unit connector A (20P). If all connections are OK, replace the audio unit.
NO - Repair an open in the wire between the passenger's under-dash fuse/relay box and the audio unit.