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:

Oxygen Sensor Heater Control Circuit Low/ Oxygen Sensor Heater Control Circuit High/ Oxygen Sensor Heater Circuit Malfunction
DTC P0037 Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) DTC P0038 Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2) DTC P0057 Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2) DTC P0058 Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2) DTC P0141 Oxyg ...

Installation
1. INSTALL TRANSFER ASSEMBLY (a) Apply sealant 1281 to the transaxle assembly and transfer assembly in continuous beaded from of 1.2 mm diameter as shown in the illustration. NOTICE: Wipe any grease off from the attaching surfaces. Install it within 10 minutes after applying the se ...

Customize parameters
HINT: The following items can be customized. NOTICE:  After confirming whether the items requested by the customer are applicable or not for customization, perform customizing operations.  Be sure to record the current settings before customization.  When troubleshooti ...

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