Toyota 4Runner manuals

Toyota 4Runner: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the airbag system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP


NEXT

2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.


NEXT

3.

CHECK CAN COMMUNICATION SYSTEM*

(a) Check for DTCs (See page ).


Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO CAN COMMUNICATION SYSTEM


A

4.

WARNING LIGHT CHECK


NEXT

5.

CHECK DTC (Present and Past DTCs)*

(a) Check for DTCs (See page ).


Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO PROBLEM SYMPTOMS TABLE


A

6.

DTC CHART


NEXT

7.

CIRCUIT INSPECTION


NEXT

8.

REPAIR


NEXT

9.

CLEAR DTC (Present and Past DTCs)*


NEXT

10.

CHECK DTC (Present and Past DTCs)*

(a) Check for DTCs (See page ).


Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO DIAGNOSTIC TROUBLE CODE CHART


A

11.

CONFIRMATION TEST


NEXT

END

System Diagram
SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Center Airbag Sensor ECM ...

System Description
SYSTEM DESCRIPTION 1. GENERAL (a) In conjunction with the impact absorbing structure for a front collision, the SRS (Supplemental Restraint System) steering pad, instrument panel passenger airba ...

Other materials about Toyota 4Runner:

Precaution
PRECAUTION 1. IGNITION SWITCH EXPRESSION HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ign ...

LIN Communication Master Malfunction (B2287,B278C)
DESCRIPTION DTC B2287 is stored when there is an open or short circuit or an ECU communication malfunction between the power management control ECU and certification ECU. DTC B278C is stored when LIN communication between the certification ...

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