Toyota 4Runner: How To Proceed With Troubleshooting

Toyota 4Runner Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Engine Immobiliser System(w/o Smart Key System) / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use these procedures to troubleshoot the engine immobiliser 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.	CRANK ENGINE FOR MORE THAN 10 SECONDS

4.	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. Try to duplicate the DTC (SFI system and engine immobiliser system) by reproducing the symptoms indicated by the DTC.

Result	Proceed to
DTC is not output	A
SFI system DTC is output	B
Engine immobiliser system DTC is output	C

GO TO SFI SYSTEM

GO TO DIAGNOSTIC TROUBLE CODE CHART

5.	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 7

6.	OVERALL ANALYSIS AND TROUBLESHOOTING*

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

(b) Terminals of ECU (See page ).

7.	ADJUST, REPAIR OR REPLACE

8.	CONFIRMATION TEST

END

Registration

REGISTRATION PROCEDURE 1. DESCRIPTION OF CODE REGISTRATION The key has 2 codes: the key code (immobiliser code) and the wireless code (recognition code). Both of these codes need to be registered ...

Other materials about Toyota 4Runner:

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" ...

Passenger Airbag ON/OFF Indicator Circuit Malfunction (B1660/43)
DESCRIPTION The passenger airbag ON/OFF indicator circuit consists of the airbag sensor assembly and passenger airbag ON/OFF indicator. The passenger airbag ON/OFF indicator indicates the operation condition of the instrument panel passenger airbag, lowe ...

Toyota 4Runner: How To Proceed With Troubleshooting

System Diagram

Registration

Other materials about Toyota 4Runner: