Toyota 4Runner Quiz
Vehicle Interior

How To Proceed With Troubleshooting

In this manual: Vehicle Interior
General — 25Audio / Visual / Telematics — 283Brake — 187Drivetrain — 204Power Source / Network — 79Steering — 76Suspension — 130Vehicle Exterior — 391Vehicle Interior — 693
~2min read
CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the engine immobiliser 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 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 make a note of any codes that are output (See page ).


(b) Clear the DTCs (See page ).


(c) Recheck for DTCs (See page ). Based on the
DTCs output above, try to cause the output of the same SFI system, steering lock system or engine immobiliser system DTC by reproducing the symptoms indicated by the DTC.

Result

Proceed to

DTC is not output

A

SFI system DTC is output

B

Steering lock system DTC is output

C

Engine immobiliser system DTC is output

D

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

C

GO TO DIAGNOSTIC TROUBLE CODE CHART

D

GO TO DIAGNOSTIC TROUBLE CODE CHART
A

  1. PROBLEM SYMPTOMS TABLE

(a) Refer to 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 7
A

  1. OVERALL ANALYSIS AND TROUBLESHOOTING*

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


(b) Terminals of ECU (See page ).


NEXT

  1. ADJUST, REPAIR OR REPLACE

NEXT

  1. CONFIRMATION TEST


NEXT

END

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