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Toyota Corolla Repair Manual: How to proceed with troubleshooting

Toyota Corolla Repair Manual / Diagnostics / Audio system / How to proceed with troubleshooting

1 Vehicle brought to workshop

2 Customer problem analysis

2 Customer problem analysis

3 Check and clear dtc

3 Check and clear dtc

4 Problem symptom confirmation

4 Problem symptom confirmation

Symptom does not occur (go to

Symptom does not occur (go to step 5)

5 Symptom simulation

6 Dtc check

6 Dtc check

7 Dtc chart

7 Dtc chart

8 Problem symptoms table

8 Problem symptoms table

9 Circuit inspection

9 Circuit inspection

10 Confirmation test

10 Confirmation test

End

End

Customer problem analysis check

Precheck

Description
1. Radio wave band The radio wave bands used in radio broadcasting are as follows: Lf: low frequency mf: medium frequency hf: high frequency vhf: very high frequency 2. Service area ...

Precheck
1. Diagnosis check Starting diagnosis mode (service check mode)  turn off the audio system and turn the ig switch to acc. While pressing the preset switches 1 and 6 at the s ...

Other materials:

Rear view monitor system precautions
■ Area displayed on screen The rear view monitor system displays an image of the view from the bumper of the rear area of the vehicle. To adjust the image on the rear view monitor system screen. The area displayed on the screen may vary according to vehicle orientation conditions. ...

Operating the touch screen
By touching the screen with your finger, you can control the multimedia system, etc. ■ Drag* Touch the screen with your finger, and move the screen to the desired position. ● Scrolling the lists ● Using scroll bar in lists ■ Flick* Touch the screen with your finger an ...

Onvehicle inspection
1. Check battery electrolyte level Check the electrolyte quantity of each cell (maintenancefree battery).  If under the lower level, replace the battery (or add distilled water if possible) and check the charging system.  check the electrolyte quantity of each cell (e ...

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