Security Indicator Light Circuit

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM (w/o Smart Key System): Security Indicator Light Circuit
- Security Indicator Light Circuit

DESCRIPTION

When the transponder key is registered, the transponder key ECU assembly outputs the key registration condition by lighting up, blinking or turning off the security indicator light.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
If the transponder key ECU is replaced, register the key and ECU communication ID Engine Immobilizer System (w/o Smart Key System).

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR LIGHT)

(a) Connect Techstream to the DLC3.

(b) Turn the ignition switch to the ON position.

(c) Turn the tester on.

(d) Select the following menu items: Body Electrical / Immobiliser / Active Test.

(e) Perform the Active Test according to the display on the tester.

Immobiliser:





OK:

The security indicator light turns on and off according to the tester operation.

NG -- CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT)

OK -- REPLACE TRANSPONDER KEY ECU ASSEMBLY Removal

2. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT)

(a) Disconnect the transponder key ECU and security indicator light connectors.





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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - BODY GROUND)

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





Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE SECURITY INDICATOR LIGHT Removal