Toyota 4Runner manuals

Toyota 4Runner: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the sliding roof 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 COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Result

Proceed to

CAN DTC is not output

A

CAN DTC is output

B


B

GO TO CAN COMMUNICATION SYSTEM


A

4.

CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the LIN communication system is functioning normally.

Result

Proceed to

LIN DTC is not output

A

LIN DTC is output

B


B

GO TO LIN COMMUNICATION SYSTEM


A

5.

CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output (See page ).


(b) Clear the DTCs.

(c) Recheck for DTCs.

Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO DIAGNOSTIC TROUBLE CODE CHART


A

6.

PROBLEM SYMPTOMS TABLE

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


Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B


B

GO TO STEP 8


A

7.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check (See page ).


(b) Data List / Active Test (See page ).


(c) Terminals of ECU (See page
).



NEXT

8.

ADJUST, REPAIR OR REPLACE


NEXT

9.

INITIALIZATION

(a) Initialization (See page ).



NEXT

10.

CONFIRMATION TEST


NEXT

END

System Description
SYSTEM DESCRIPTION 1. GENERAL This system has the following functions: manual slide open and close, auto slide open and close, manual tilt up and down, auto tilt up and down, jam protection, key ...

Operation Check
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