Power Switch Will Not Turn ON
Power switch will not turn ON1. With the ignition switch ON (II), push the power switch ON to see if the audio unit turns ON.
Does the power turn on?
YES - Operation is normal. If the display turns on, but no sound is heard from the speakers, go to audio system is weak or distorted, or no sound is heard from speakers.
NO - Go to step 2.
2. Turn the ignition switch OFF, then check the No.6 (10 A) and No.32 (7.5 A) fuses in the under dash fuse/relay box.
Are the fuses OK?
YES - Go to step 3.
NO - Replace the fuse(s) and recheck.
3. Remove the audio-HVAC-display module. Check that audio unit connector A (20P) is properly connected.
Is it connected properly?
YES - Go to step 4.
NO - Reconnect the connector, and recheck the function.
4. Measure voltage between audio unit connector A10 terminal and body ground.
Is there battery voltage?
YES - Go to step 5.
NO - Repair the open circuit or poor connection in wire between the under-dash fuse/relay box and audio unit connector A terminal No.10.
5. Turn the ignition switch ON(II).
6. Measure the voltage between the audio unit connector A terminal No.2 and body ground.
Is there battery voltage?
YES - Go to step 7.
NO - Repair the open circuit or poor connection in the wire between the under-dash fuse/relay box and audio unit connector A terminal No.2.
7. Turn the ignition switch OFF, then check for continuity between audio unit connector A terminal No.20 and body ground.
Is there continuity?
YES - Replace the audio-HVAC display module.
NO - Repair the open wire between audio unit connector A20 and body ground (G504).