Toyota RAV4 manuals

Toyota Sienna Service Manual: How to proceed with troubleshooting

HINT: *: Use the intelligent tester.

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS

  1. (a) Confirm problem symptoms

3 CHECK MULTIPLEX COMMUNICATION SYSTEM*

  1. Check if the multiplex communication system DTC is output.

HINT: The center airbag sensor assembly of this system is connected to the multiplex communication system.

Therefore, before starting troubleshooting, make sure to check that there is no trouble in the multiplex communication system.

Result:

CHECK MULTIPLEX COMMUNICATION SYSTEM

INSPECT MULTIPLEX COMMUNICATION CIRCUIT

4 CHECK CAN COMMUNICATION SYSTEM*

  1. Use the intelligent tester to check if the CAN communication system is functioning normally .

HINT: The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

Result:

CHECK CAN COMMUNICATION SYSTEM

CHECK CAN COMMUNICATION SYSTEM

INSPECT CAN COMMUNICATION CIRCUIT

5 SRS WARNING LIGHT CHECK

  1. Proceed to Diagnosis System

6 CHECK FOR DTC*

  1. Proceed to DTC Check / Clear (5).

Result:

CHECK FOR DTC

GO TO STEP 8

7 DIAGNOSTIC TROUBLE CODE CHART

  1. Proceed to Diagnostic Trouble Code Chart

GO TO STEP 10

8 SYMPTOM SIMULATION

  1. Proceed to Diagnosis System

9 PROBLEM SYMPTOMS TABLE

  1. Proceed to Problem Symptoms Table

10 CIRCUIT INSPECTION

11 IDENTIFICATION OF PROBLEM

12 REPAIR OR REPLACEMENT

13 CONFIRMATION TEST

END

System description
1. GENERAL In conjunction with impact absorbing structure for a frontal collision, the SRS (Supplemental Restraint System) driver airbag and front passenger airbag were designed to supplemen ...

Problem symptoms table
HINT: Proceed to the troubleshooting for each circuit in the table below. AIRBAG SYSTEM Symptom Suspected Area The SRS warning light goes off after the primary check, ...

Other materials:

Disassembly
1. REMOVE COOLER DRYER (a) Using a hexagon wrench 14 mm (0.55 in.), remove the cap from the modulator. (b) Remove the O-ring from the cap. (c) Using needle nose pliers, remove the cooler dryer. ...

Touchless unlocking and locking of the vehicle
Concept The vehicle will be unlocked when the driver approaches the locked vehicle with the vehicle key. When the driver walks away from the unlocked vehicle with the vehicle key, the vehicle will be locked. General information The vehicle will be unlocked when an authorized vehicle key is detected ...

Freeze frame data
1. FREEZE FRAME DATA (a) The vehicle (sensor) status, stored during ABS and/ or VSC operation or at the time of an error code detection, can be displayed by the intelligent tester. (b) Only one record of freeze frame data is stored and the freeze frame data generated during ABS and/or VSC op ...

В© 2011-2023 Copyright www.tsienna.net