Toyota 4Runner manuals

Toyota 4Runner: Security Indicator Light Circuit

DESCRIPTION

  • When the engine immobiliser system is set, the security indicator light blinks continuously, but does not illuminate if the engine immobiliser system is not set.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

When the transponder key ECU assembly is replaced, refer to Registration (See page ).


PROCEDURE

1.

PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR)

(a) Check that the security indicator light illuminates when operating it with the Active Test (See page ).


Immobiliser

Tester Display

Test Part

Control Range

Diagnostic Note

Security Indicator

Security indicator light

ON/OFF

The test is possible when the following conditions are met:

  • The key is in the ignition key cylinder.

OK:

Security indicator light can be turned on and off using the Techstream.


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

2.

INSPECT SECURITY INDICATOR LIGHT (TELLTALE LIGHT ASSEMBLY)

(a) Remove the security indicator light (telltale light assembly) (See page ).


(b) Inspect the security indicator light (telltale light assembly) (See page ).



NG

REPLACE SECURITY INDICATOR LIGHT (TELLTALE LIGHT ASSEMBLY)


OK

3.

CHECK HARNESS AND CONNECTOR (TELLTALE LIGHT - TRANSPONDER KEY ECU AND BODY GROUND)

(a) Disconnect the F32 security indicator light (telltale light assembly) connector.

(b) Disconnect the F34 transponder key ECU assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

F32-6 (LP) - F34-8 (IND)

Always

Below 1 Ω

F32-1 (GND) - Body ground

Always

Below 1 Ω

F32-6 (LP) or F34-8 (IND) - Body ground

Always

10 kΩ or higher


OK

REPLACE TRANSPONDER KEY ECU ASSEMBLY


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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