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

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