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:

Air Mix Damper Control Servo Motor Circuit (Passenger Side) (B1441)
DESCRIPTION The damper servo sub-assembly (air mix damper servo) sends pulse signals to inform the No. 1 air conditioning amplifier assembly of the damper position. The No. 1 air conditioning amplifier assembly activates the motor (normal or reverse) base ...

Inspection
INSPECTION PROCEDURE 1. INSPECT SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY (a) for Driver Side: (1) Check the operation of the separate type front seat cushion spring assembly (slide motor). Check that the separate type front seat c ...

© 2016-2021 | www.to4runner.net

0.0061