Engine Immobiliser System (W/O Entry And Start System) Security Indicator Light Does Not Blink

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SECURITY INDICATOR)

READ VALUE USING INTELLIGENT TESTER (ENGINE IMMOBILISER SYSTEM STATUS)

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

REPLACE CLOCK ASSEMBLY (SECURITY INDICATOR LIGHT)

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

DESCRIPTION

1. 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

INSPECTION PROCEDURE

NOTICE:

1. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
   
2. When replacing the transponder key ECU assembly, refer to Registration.
   

1. Check for DTCs (Click here).
   

   OK:

   DTC is not output.
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON.
   

3. Turn the intelligent tester on.
   

4. Enter the following menus: Body / Immobiliser / Active Test.
   

5. According to the display on the intelligent tester, perform the Active Test.
   
   

   Immobiliser

   Tester Display	Test Part	Control Range	Diagnostic Note
   Security Indicator	Security indicator light	ON/OFF	-

   OK:

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

1. Turn the ignition switch off.
   

   HINT:

   When using the intelligent tester with the ignition switch off to troubleshoot: Connect the intelligent tester to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds until communication between the intelligent tester and vehicle begins.

2. Using the intelligent tester, read the Data List (Click here).
   
   

   Immobiliser

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Immobiliser	Engine immobiliser system status determined by transponder key ECU assembly / Set or Unset	Set: Engine immobiliser set (engine start prohibited [no key in ignition key cylinder]) Unset: Engine immobiliser unset (engine start permitted [key inserted in ignition key cylinder])	When the engine immobiliser system does not change to the unset state, this item can be used to determine if the cause is the transponder key ECU assembly.

1. Disconnect the E96 transponder key ECU assembly connector.
   

2. Disconnect the g1 clock assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E96-8 (IND) - g1-9 (LP)	Always	Below 1 Ω
   g1-1 (E) - Body ground	Always	Below 1 Ω
   g1-9 (LP) - Body ground	Always	10 kΩ or higher

1. Temporarily replace the clock assembly (security indicator light) with a new or normally functioning one (Click here).
   

2. When the immobiliser is set or the theft deterrent system is in the arming preparation state, check that the security indicator light blinks.
   

   OK:

   Security indicator light blinks.
   

1. Disconnect the E96 transponder key ECU assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E96-16 (GND) - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Condition	Specified Condition
   E96-1 (+B) - Body ground	Always	11 to 14 V
   E96-2 (IG) - Body ground	Ignition switch off	Below 1 V
   	Ignition switch ON	11 to 14 V