Toyota 4Runner Quiz
Vehicle Exterior

How To Proceed With Troubleshooting

In this manual: Vehicle Exterior
General — 25Audio / Visual / Telematics — 283Brake — 187Drivetrain — 204Power Source / Network — 79Steering — 76Suspension — 130Vehicle Exterior — 391Vehicle Interior — 693
~1min read
CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the sliding roof system.
  • *: Use the Techstream.
PROCEDURE

  1. VEHICLE BROUGHT TO WORKSHOP

NEXT

  1. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT

  1. 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

  1. 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

  1. 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

  1. 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

  1. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check (See page ).


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


(c) Terminals of ECU (See page
).


NEXT

  1. ADJUST, REPAIR OR REPLACE

NEXT

  1. INITIALIZATION

(a) Initialization (See page ).


NEXT

  1. CONFIRMATION TEST


NEXT

END

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.