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Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Lighting / Lighting system / How to proceed with troubleshooting

1 VEHICLE BROUGHT TO WORK SHOP

2 CUSTOMER PROBLEM ANALYSIS

3 CHECK BODY MULTIPLEX COMMUNICATION SYSTEM

  1. Check for the DTC outputs.

4 DTC CHECK

5 DTC CHART

6 PROBLEM SYMPTOMS TABLE

7 TERMINAL OF ECU

8 CIRCUIT INSPECTION

9 IDENTIFICATION OF PROBLEM

10 REPAIR OR REPLACE

11 CONFIRMATION TEST

END

Parts location
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Operation check
1. ILLUMINATED ENTRY SYSTEM OPERATION CHECK  The illuminated entry system is explained below:  Turn the ignition switch OFF, close all the doors, and set them in the lock conditi ...

Other materials:

Removal
1. REMOVE FRONT DOOR OPENING TRIM WEATHERSTRIP LH 2. REMOVE FRONT DOOR OPENING TRIM WEATHERSTRIP RH 3. REMOVE FRONT PILLAR GARNISH LH 4. REMOVE FRONT PILLAR GARNISH RH 5. REMOVE VISOR ASSEMBLY LH 6. REMOVE VISOR ASSEMBLY RH 7. REMOVE ASSIST GRIP SUB-ASSEMBLY (2) 8. REMOVE VISOR HOLDER (1) ...

Removal
1. REMOVE INSTRUMENT CLUSTER CENTER NO. 1 FINISH PANEL 2. REMOVE INSTRUMENT CLUSTER CENTER NO. 2 FINISH PANEL 3. REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH 4. REMOVE RADIO RECEIVER  Remove the 4 screws.  Disconnect the connectors and remove the radio receiver with bracke ...

Basic inspection
When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly a ...

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