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:
General information
There are many ecu controlled systems used in the corolla. In general, ecu
controlled system are considered
to be very intricate and require a high level of technical knowledge and expert
skill to troubleshoot.
The fact is, however, that if you proceed by inspecting the circuits one by one, ...
Circuit description
Refer to dtc p0130
Dtc no
Dtc detection condition
Trouble area
P0136
The following condition (a) or (b) continues for 300 seconds or
more:
During driving with the engine warmed up, heated oxygen
sensor o tp t does not change
output change.
he ...
Anti-glare function
► Manual anti-glare inside rear view mirror
Reflected light from the headlights of vehicles behind can be reduced by operating
the lever.
1 Normal position
2 Anti-glare position
► Auto anti-glare inside rear view mirror
Responding to the level of brightness of the headlights of ...