Security Indicator Light Circuit

THEFT DETERRENT: SYSTEM: Security Indicator Light Circuit

Security Indicator Light Circuit

DESCRIPTION

Even when the theft deterrent system is in the disarmed state, the security indicator blinks due to a signal output from the immobilizer system. The security indicator blinks continuously due to a continuous signal received from the immobilizer system while in the armed state.
The certification ECU causes the security indicator to light up or blink only during the arming preparation state and alarm sounding state.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST BY TECHSTREAM
(a) Connect Techstream (with CAN VIM) to the DLC3.
(b) Turn the engine switch on (IG).
(c) Press Techstream main switch on.
(d) Select the item below in the Active Test and then check that the indicator operates.

Smart Key:





OK:
The security indicator light flashes or goes off correctly when operating it through Techstream.
NG -- CHECK SECURITY INDICATOR LIGHT ASSEMBLY
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. CHECK SECURITY INDICATOR LIGHT ASSEMBLY





(a) Remove the security indicator light assembly.
(b) Apply battery voltage to the terminals of the security indicator and check the lighting condition.
OK:






NG -- REPLACE SECURITY INDICATOR LIGHT ASSEMBLY
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - SECURITY INDICATOR LIGHT)





(a) Disconnect the E13 ECU connector.
(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.
4. CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT ASSEMBLY - 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 -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE