Audio remote switch does not work properly (with navigation) Acura TL IV рестайлинг

Audio remote switch does not work properly (with navigation)

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

Scheme 364

Scheme 365

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
2. Turn on the audio-navigation unit, and check the audio remote switch operation (volume up, volume down, CH (UP), CH (DOWN), MODE). Is the audio system operation OK? YES -Intermittent failure, the system is OK at this time. NO -Go to step 3.
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
4. Do the Audio Remote Switch Test (see «AUDIO REMOTE SWITCH TEST»(/acura/tl/iv-2011-2014/remont/entertainment-systems/#audio-system) ). Is the audio remote switch OK? YES -Go to step 5. NO -Replace the audio remote, HFL-navigation voice control switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2011-2014/remont/manual-power-steering/#power-steering-system) ).
5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
6. Reconnect the audio remote, HFL-navigation voice control switch 12P connector.
7. Disconnect audio-navigation unit connector A (24P). NOTE: Eject all the disc(s) before disconnecting the audio-navigation unit to prevent damaging the CD/DVD player's load mechanism.
8. Measure the resistance between audio-navigation unit connector A (24P) terminals No. 5 and No. 16 as specified in the table. AUDIO REMOTE SWITCH TABLE Button held down VOL DOWN VOL UP CH(-) CH(+) MODE No button pressed Resistance about 100 ohms about 357 ohms about 775 ohms about 1.7 kohms about 3.7 kohms about 10 kohms Is the resistance OK? YES -Go to step 9. NO -Repair a short or high resistance in the wires between the audio-navigation unit and the audio remote switch. If the wires are OK, replace the cable reel (see «CABLE REEL REPLACEMENT»(/acura/tl/iv-2011-2014/remont/airbag/#supplemental-restraint-system) ).
9. Disconnect the audio remote, HFL-navigation voice control switch 12P connector.
10. Check for continuity between body ground and audio-navigation unit connector A (24P) terminals No. 5 and No. 16 individually. Is there continuity? YES -Repair a short to body ground in the wire(s) between the audio-navigation unit and the audio remote switch. If the wires are OK, replace the cable reel (see «CABLE REEL REPLACEMENT»(/acura/tl/iv-2011-2014/remont/airbag/#supplemental-restraint-system) ). NO -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2011-2014/remont/entertainment-systems/#navigation-system__audio-navigation-unit-removalinstallation) ), then reconnect all of the connectors, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2011-2014/remont/entertainment-systems/#navigation-system__audio-navigation-unit-removalinstallation) ).