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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 V-BANK COVER SUB-ASSEMBLY (See page EM-28) 2. REMOVE NO. 1 ENGINE UNDER COVER (See page EM-26) 3. DRAIN ENGINE COOLANT (See page CO-6) 4. REMOVE FRONT WHEEL RH 5. REMOVE FRONT FENDER APRON SEAL RH 6. REMOVE V-RIBBED BELT (See page EM-6) 7. DISCONNECT NO. 2 RADIATOR HOSE (a) Di ...

Cruise Control Switch Circuit
DESCRIPTION The cruise control main switch operates 8 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP, CANCEL, and MODE. The SET, TAP-DOWN, and - (COAST) functions, and the RES (RESUME), TAP-UP, and + (ACCEL) functions are operated with the same switch. The cruise contr ...

Air Mix Damper Position Sensor Circuit (Passenger Side)
DESCRIPTION This sensor detects the position of the air mix control servo motor (air mix damper) and sends the appropriate signals to the A/C amplifier. The position sensor is built in the air mix control servo motor. The position sensor's resistance changes as the air mix control servo m ...

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