Toyota 4Runner Quiz
Drivetrain

How To Proceed With Troubleshooting

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

HINT:

  • The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.
  • *: Use the Techstream.
PROCEDURE

  1. VEHICLE BROUGHT TO WORKSHOP

NEXT

  1. CUSTOMER PROBLEM ANALYSIS

(a) Refer to How to Troubleshoot ECU Controlled Systems in the Introduction section (See page ).


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. CONNECT TECHSTREAM TO DLC3*

NEXT

  1. CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*

(a) Refer to DTC Check / Clear (See page )


NEXT

  1. VISUAL INSPECTION

NEXT

  1. SETTING CHECK MODE DIAGNOSIS*

(a) Refer to Check Mode Procedure (Click here
).

NEXT

  1. PROBLEM SYMPTOM CONFIRMATION

(a) Refer to Road Test (See page ).


Result

Proceed to

Symptom does not occur

A

Symptom occurs

B

B

GO TO STEP 10
A

  1. SYMPTOM SIMULATION

(a) Refer to Electronic Circuit Inspection Procedure (See page ).


NEXT

  1. DTC CHECK*

(a) Refer to DTC Check / Clear (See page ).


Result

Proceed to

DTC is not output

A

DTC is output

B

B

GO TO STEP 19
A

  1. BASIC INSPECTION

(a) Refer to Automatic Transmission Fluid (See page ).


(b) Refer to Park/Neutral Position Switch (See page ).


(c) Refer to Shift Lever Assembly (See page
).


NG

GO TO STEP 22
OK

  1. MECHANICAL SYSTEM TESTS

(a) Refer to Mechanical System Tests (See page ).



NG

GO TO STEP 18
OK

  1. HYDRAULIC TEST

(a) Refer to Hydraulic Test (See page ).



NG

GO TO STEP 18
OK

  1. MANUAL SHIFTING TEST

(a) Refer to Manual Shifting Test (See page
).


NG

GO TO STEP 17
OK

  1. PROBLEM SYMPTOMS TABLE CHAPTER 1

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


NG

GO TO STEP 20
OK

  1. PROBLEM SYMPTOMS TABLE CHAPTER 2

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


NG

GO TO STEP 18
OK

  1. PROBLEM SYMPTOMS TABLE CHAPTER 3

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

NEXT

  1. PART INSPECTION


NG

GO TO STEP 22
OK

  1. DTC CHART

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


NEXT

  1. CIRCUIT INSPECTION

NEXT

  1. IDENTIFICATION OF PROBLEM

NEXT

  1. 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.