Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Audio system / No sound is heard from speaker in all modes
Toyota Corolla (E120): No sound is heard from speaker in all modes
Wiring diagram
Inspection procedure
1 Check lcd (liquid crystal display) for lighting
- Lcd illumination check
- turn the ignition switch acc.
- Turn the radio receiver assembly on.
Standard: lcd illumination of the radio receiver assembly light.
2 Control fader and adjust sound balance
- Fader and balance adjustment
- operate the radio receiver assembly to adjust the fader and the balance to identify the speaker that does not sound.
3 Inspect front no.1 Speaker assy
- Preparation for check
- disconnect the connector of the speaker.
- resistance check
- check the resistance between the terminals of the speaker.
Notice
: the speaker should not be removed for checking.
Standard value: 4 Ω
4 Inspect front no.2 Speaker assy
- Check that malfunction disappear when a known good speaker is installed.
Standard: malfunction disappear.
Hint
: connect the all connectors of speakers.
5 Inspect rear speaker assy
- Preparation for check
- disconnect the connector of the speaker.
- resistance check
- check the resistance between the terminals of the speaker.
Notice
: the speaker should not be removed for checking.
Standard value: 6 w
6 Check harness and connector(between radio receiver assy and speaker)
Check and replace radio receiver assy
7 Inspect radio receiver assy(+b, acc, gnd)
- Check that the continuity between terminals at each condition, as shown in the chart.
Standard:
- Check that the voltage between terminals at each condition, as shown in the chart.
Standard:
Repair or replace harness or connector
Other materials:
Inspection procedure
1 Check relay (marking: starter cut)
Inspect the relay continuity, as shown in the illustration
and table.
Standard:
2 Check tvip ecu
Disconnect the tvip ecu connector.
turn the ignition switch position to the start.
measure the voltage between the termina ...
Registering a Bluetooth® phone for the first time
To use the hands-free system, it is necessary to register a Bluetooth® phone
with the system.
Once the phone has been registered, it is possible to use the hands-free system.
For details about registering a Bluetooth® device
1 Turn the Bluetooth® connection setting of your cellular phone on. ...
Inspection procedure
1 Inspect cruise control actuator assy
Turn the ignition switch to off.
disconnect the cruise control actuator assy connector.
measure the resistance between terminals 1 (mo) and 2
(mc) of cruise control actuator assy.
Hint:
if control plate position is fully opened or ...