ENGINE IMMOBILISER SYSTEM(w/ Entry and Start System) Security Indicator Light Circuit

DESCRIPTION

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

WIRING DIAGRAM

PROCEDURE

1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SECURITY INDICATOR)

   
   

   1. Check that the security indicator light illuminates when operating it with the Active Test Click here.

      Entry&Start

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

      OK
      Security indicator illuminates.

   
   

   OK

   REPLACE CERTIFICATION ECU

   NG

2. INSPECT TELLTALE LIGHT ASSEMBLY

   
   
   1. 

      *1	Battery (-)
      *2	Battery (+)

      Remove the telltale light assembly Click here.

   2. Connect the positive (+) lead from the battery to terminal 14 and the negative (-) lead to terminal 15, and check that the security indicator illuminates.

      OK
      Security indicator illuminates.

   
   

   NG

   REPLACE TELLTALE LIGHT ASSEMBLY Click here

   OK

3. CHECK HARNESS AND CONNECTOR (TELLTALE LIGHT ASSEMBLY - CERTIFICATION ECU AND BODY GROUND)

   
   
   1. 

      Text in Illustration

      *1	Front view of wire harness connector (to Telltale Light Assembly)
      *2	Front view of wire harness connector (to Certification ECU)

      Disconnect the H122 light connector.

   2. Disconnect the H51 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition H122-14 (LP) - H51-2 (IND) Always Below 1 Ω H122-15 (E) - Body ground Always Below 1 Ω H122-14 (LP) or H51-2 (IND) - Body ground Always 10 kΩ or higher

   
   

   OK

   REPLACE CERTIFICATION ECU

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR