Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Audio system
Toyota Corolla (E120): Audio system
- Description
- How to proceed with troubleshooting
- Pre–check
- Diagnostic trouble code chart
- Terminals of ecu
- Problem symptoms table
- Pressing power switch does not start system
- Turning on light switch does not light up night time illumination of radio receiver
- No sound is heard from speaker in all modes
- Sound quality is bad in all modes (volume is too low)
- Radio broadcast cannot be received (bad reception)
- Cassette tape cannot be inserted or played
- Cassette tape cannot be ejected
- Sound quality is bad only when playing tape
- Tape is tangled due to incorrect tape speed or auto–reverse malfunction
- Cd cannot be inserted or is ejected right after insertion
- Although system is powered,cd cannot be played
- Cd cannot be taken out
- Sound quality is bad only when cd is played(volume is too low)
- Cd sound skips
- Noise occurs
Other materials:
Circuit description
The o/d main switch (transmission control switch) is a momentary type switch.
When pressing the o/d main
switch, the o/d off indicator light lights up and the ecm prohibits shifting
into o/d, and when pressing it
once again, the o/d off indicator light goes off and the ecm allows shifting
in ...
Replacement
1. Drain brake fluid
Notice:
wash the brake fluid off immediately if it comes into contact with any painted
surface.
2. Remove air cleaner cap sub–assy
3. Remove air cleaner case sub–assy
remove the air cleaner element, then remove the 3 bolts and air
cleaner case sub–assy.
...
Inspection procedure
1 Prepare for inspection
Disconnect the negative (–) terminal cable from the battery, and wait at
least for 90 seconds.
remove the horn button assy .
disconnect the connector of the instrument panel passenger airbag assy
.
disconnect the connector of the front sea ...