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.

CUSTOMER PROBLEM ANALYSIS


NEXT

3.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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


NEXT

4.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Inspect the CAN communication function to make sure there are no malfunctions in the communication system (See page ).


Result

Proceed to

CAN DTC is not output

A

CAN DTC is output

B


B

GO TO CAN COMMUNICATION SYSTEM


A

5.

CHECK AND CLEAR DTC

(a) Check for DTCs (See page ).



NEXT

6.

PROBLEM SYMPTOM CONFIRMATION

Result

Proceed to

Symptom does not occur

A

Symptom occurs

B


B

GO TO STEP 9


A

7.

SYMPTOM SIMULATION


NEXT

8.

CHECK DTC*

(a) Check for DTCs (See page ).


Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO STEP 10


A

9.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table (See page
).


NEXT

GO TO STEP 12

10.

DTC CHART

(a) Refer to the Diagnostic Trouble Code Chart (See page ).



NEXT

11.

CIRCUIT INSPECTION


NEXT

12.

IDENTIFICATION OF PROBLEM


NEXT

13.

REPAIR OR REPLACE


NEXT

14.

CONFIRMATION TEST


NEXT

END

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