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Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Meter / Meter / gauge system / How to proceed with troubleshooting

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS

3 CHECK BODY MULTIPLEX COMMUNICATION SYSTEM

  1. Check for DTC output

4 PROBLEM SYMPTOM CONFIRMATION

5 PROBLEM SYMPTOMS TABLE

6 CIRCUIT INSPECTION

7 REPAIR OR REPLACE

8 CONFIRMATION TEST

END

Precaution
1. REMOVAL AND INSTALLATION OF THE BATTERY TERMINAL  Before performing electrical work, disconnect the battery negative (-) terminal in order to prevent a short in the system.   ...

Customize parameters
1. Seat Belt Buzzer ON/OFF Setting The seat belt buzzer ON/OFF setting, which is a setting of the buzzer function of the combination meter, can disable the driver side seat belt buzzer and front p ...

Other materials:

Short to B+ in Side Squib LH Circuit
DTC B0118/46 Short to B+ in Side Squib LH Circuit DESCRIPTION The side squib LH circuit consists of the center airbag sensor assembly and the front seat side airbag assembly LH (side squib LH). This circuit instructs the SRS to deploy when deployment conditions are met. DTC B0118/46 is re ...

Oxygen (A/F) Sensor Pumping Current Circuit
HINT: Although the DTC titles say oxygen sensor, these DTCs relate to the Air-Fuel Ratio (A/F) sensor. Sensor 1 refers to the sensor mounted in front of the Three-Way Catalytic Converter (TWC) and located near the engine assembly. DESCRIPTION Refer to DTC P2195 (See page ES-355 ...

Road test
1. PROBLEM SYMPTOM CONFIRMATION HINT: The dynamic laser cruise control system has two cruise control modes: the constant speed control mode and vehicle-to-vehicle distance control mode.  The vehicle-to-vehicle distance control mode is always selected when starting up the dynamic laser ...

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