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. 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:

Result:

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:

Result:

Result:

5 SRS WARNING LIGHT CHECK

  1. Proceed to Diagnosis System

6 CHECK FOR DTC*

  1. Proceed to DTC Check / Clear.

Result:

7 DIAGNOSTIC TROUBLE CODE CHART

  1. Proceed to Diagnostic Trouble Code Chart

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 sup ...

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:

Installation
1. INSTALL NO. 2 REAR SEAT OUTER BELT ASSEMBLY NOTICE: Do not disassemble the retractor.  Check the degree of tilt when the No. 2 rear seat outer belt assembly begins to lock the ELR.  Check that the belt does not lock within 15 of tilt in all directions but that the be ...

Initialization not Completed
DTC C2177/77 Initialization not Completed DESCRIPTION Initialization is necessary after replacing any of the ECUs, tires with different tire pressure, or tire pressure warning valve and transmitter, after rotating the tires or when a new vehicle is delivered. WIRING DIAGRAM INSPECTI ...

Open in One Side of CAN Branch Line
DESCRIPTION If 2 or more ECUs and/or sensors do not appear on the intelligent tester "Communication Bus Check" screen, one side of the CAN branch wire may be open. (One side of the CAN-H [branch wire] / CAN-L [branch wire] of the ECU and/or sensor is open.) Symptom ...

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