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Toyota Corolla Repair Manual: Turning on light switch does not light up night time illumination of radio receiver

Toyota Corolla Repair Manual / Diagnostics / Audio system / Turning on light switch does not light up night time illumination of radio receiver

Wiring diagram

Inspection procedure

Inspection procedure

1 Inspect radio receiver assy(ill+, ill)

  1. Check that the voltage between terminals at each condition, as shown in the chart.

Standard:

Repair or replace harness or connector

Repair or replace harness or connector

Pressing power switch does not start system
Wiring diagram Inspection procedure 1 Inspect radio receiver assy(+b, acc, gnd) Check that the continuity between terminals at each condition, as shown in the chart. Standard: ...

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 assembl ...

Other materials:

Amplifier antenna assy
Replacement Hint: components: Remove roof headlining assy Notice: do not bend the roof headlining assy. Hint: refer to the procedure from remove roof headlining assy of roof headlining assy. Remove the related parts as long as the amplifier antenna assy can be removed. ...

Other functions
■ Switching between outside air and recirculated air modes Press . The mode switches between outside air mode (indicator off) and recirculated air mode (indicator on) each time is pressed. ■ Defogging the windshield Defoggers are used to defog the windshield and front side windows ...

Inspection procedure
Hint: if dtcs p0115, p0116, p0117, p0118 and p0125 are output simultaneously, the engine coolant temperature sensor circuit may be open or short. Perform the troubleshooting of dtc p0115, p0117 or p0118 first. Read freeze frame data using the hand-held tester or the obd ii scan to ...

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