Toyota 4Runner: How To Proceed With Troubleshooting

Toyota 4Runner Service Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use these procedures to troubleshoot the meter/gauge system.
*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

3.	CHECK FOR DTC*

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

(b) Clear the DTCs (See page ).

(c) Recheck for DTCs. Based on the DTCs output above, try to force output of the same CAN communication system or meter/gauge system DTC by reproducing the symptoms indicated by the DTC.

Result	Proceed to
DTC is not output	A
CAN communication system DTC is output	B
Meter/gauge system DTC is output	C

GO TO CAN COMMUNICATION SYSTEM

GO TO DIAGNOSTIC TROUBLE CODE CHART

4.	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

GO TO STEP 6

5.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU (See page ).

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

6.	REPAIR OR REPLACE

7.	CONFIRMATION TEST

END

Precaution

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System Diagram

SYSTEM DIAGRAM Terminal No. (Symbol) Wire Harness Side F14 1 (CANH) CAN communication line (V Bus) 2 (CANL) ...

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