Toyota CH-R Service Manual: How To Proceed With Troubleshooting

Toyota CH-R Service Manual / Supplemental Restraint Systems / Airbag System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use the following procedure to troubleshoot the airbag system.
*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

(a) Confirm problem symptoms.

Click here

3.	CHECK CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

OK:

CAN communication system is functioning normally.

HINT:

Refer to CAN Bus Check in CAN Communication System.
Click here
The airbag sensor assembly is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.

GO TO CAN COMMUNICATION SYSTEM

4.	SRS WARNING LIGHT CHECK

(a) Proceed to Diagnosis System.

Click here

5.	CHECK FOR DTC*

(a) Proceed to DTC Check / Clear.

Click here

Body Electrical > SRS Airbag > Trouble Codes

OK:

DTCs are not output.

GO TO STEP 12

6.	SYMPTOM SIMULATION

(a) Proceed to How to Proceed with Troubleshooting.

Click here

7.	PROBLEM SYMPTOMS TABLE

(a) Proceed to Problem Symptoms Table.

Click here

8.	CIRCUIT INSPECTION*

9.	IDENTIFICATION OF PROBLEM

10.	REPAIR OR REPLACEMENT

11.	CONFIRMATION TEST

END

12.	DIAGNOSTIC TROUBLE CODE CHART

(a) Proceed to Diagnostic Trouble Code Chart.

Click here

13.	CIRCUIT INSPECTION*

14.	IDENTIFICATION OF PROBLEM

15.	REPAIR OR REPLACEMENT

16.	CONFIRMATION TEST

END

System Description

SYSTEM DESCRIPTION GENERAL (a) Acceleration sensors and pressure sensors used for the airbag system are installed to various parts on the vehicle and calculate the acceleration rate and pressure ...

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

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