Toyota 4Runner manuals

Toyota 4Runner: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

*: 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.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the CAN communication function to make sure there are no malfunctions in the communication system.

Result

Proceed to

DTC is not output

A

DTC is output

B

HINT:

The skid control ECU sends the signals of each warning light via CAN communication.


B

GO TO CAN COMMUNICATION SYSTEM

A

4.

CHECK DTC AND FREEZE FRAME DATA*

NEXT

5.

CLEAR DTC AND FREEZE FRAME DATA*

NEXT

6.

PROBLEM SYMPTOM CONFIRMATION

NEXT

7.

DTC CHECK AND CLEAR*

NEXT

8.

PROBLEM SYMPTOM CONFIRMATION

Result

Proceed to

Symptom does not occur

A

Symptom occurs

B


B

GO TO STEP 11

A

9.

SYMPTOM SIMULATION

NEXT

10.

CHECK FOR DTC (OTHER THAN CAN COMMUNICATION SYSTEM DTC)*

Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO STEP 12

A

11.

PROBLEM SYMPTOMS TABLE


NEXT

GO TO STEP 14

12.

DTC CHART

NEXT

13.

CIRCUIT INSPECTION*

NEXT

14.

IDENTIFICATION OF PROBLEM

NEXT

15.

REPAIR OR REPLACE

NEXT

16.

CONFIRMATION TEST*


NEXT

END

Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS 1. DESCRIPTION HINT: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected through the ECU dat ...

Calibration
CALIBRATION 1. DESCRIPTION (a) After replacing VSC-related components, clearing and reading the sensor calibration data is necessary. (b) Follow the chart to perform calibration. Part ...

Other materials about Toyota 4Runner:

Seat Belt Buckle Switch LH Circuit Malfunction (B1656/38)
DESCRIPTION The seat belt buckle switch LH circuit consists of the center airbag sensor and front seat inner belt LH. DTC B1656/37 is stored when a malfunction is detected in the seat belt buckle switch LH circuit. DTC Code DTC Det ...

Hood
Release the lock from the inside of the vehicle to open the hood. Pull the hood release lever. The hood will pop up slightly. Push the auxiliary catch lever to the left and lift the hood. CAUTION Pre-driving check Check that the hood is fully closed ...

© 2016-2020 | www.to4runner.net

0.0063