IMMOBILISER SYSTEM(w/o Entry and Start System) Key Cannot be Registered

DESCRIPTION

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK REGISTRATION MODE

   1. Check that the system enters registration mode.

      OK

      System enters registration mode.

   Result

   Proceed to
   OK
   NG

   NG

   INSPECT UNLOCK WARNING SWITCH ASSEMBLYClick here

   OK

2. CHECK SECURITY INDICATOR LIGHT OPERATION

   1. In registration mode, insert the key into the ignition key cylinder and check the security indicator light.

      Tip:

      If the new key ID code registration fails, code 2-1 will be output through the security light. Trying to re-register an already registered key will cause code 2-2 to be output when the key is inserted. If the number of registered key ID codes exceeds the maximum limit, code 2-3 will be output through the security indicator light. The output details are shown in the following illustration.

      

      *1	Security Indicator Light	*2	Normal (Immobiliser system is operating normally)
      *3	Code 2-1	*4	Code 2-2
      *5	Code 2-3	-	-

   Result

   Result	Proceed to
   Code 2-1 or Code 2-3 is output	A
   Code 2-2 is output	B

   B

   END (REGISTERED KEY WAS USED)

   A

3. READ VALUE USING GTS (TRANSPONDER S-CODE, TRANSPONDER M-CODE)

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Immobiliser / Data List.

   5. Read the Data List according to the display on the GTS.

      Body Electrical > Immobiliser > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Transponder S-code	Number of registered sub key	min. 0, max. 15	Number of registered sub key	-
      Transponder M-code	Number of registered master key	min. 0, max. 15	Number of registered master key	-

      Body Electrical > Immobiliser > Data List

      Tester Display
      Transponder S-code
      Transponder M-code

   Result

   Result	Proceed to
   5 is displayed for "Transponder M-code" and 0 is displayed for "Transponder S-code"	A
   0 is displayed for "Transponder M-code" and 3 is displayed for "Transponder S-code"	B
   5 is displayed for "Transponder M-code" and 3 is displayed for "Transponder S-code"	C
   Values are other than above	D

   A

   KEY REGISTRATION (SUB-KEY)

   B

   KEY REGISTRATION (MASTER KEY)

   C

   MAXIMUM NUMBER OF KEYS ALREADY REGISTERED

   D

4. KEY REGISTRATION

   1. Refer to the table below to determine if additional keys can be registered.

      Number of Keys Registered (Master and Sub)	Proceed to
      0	New key ID code registration
      1 to 7	Additional key ID code registration

   2. Check if an additional key can be registered.

      OK

      Additional key can be registered.

   Result

   Proceed to
   OK
   NG

   OK

   END (KEY MALFUNCTION)

   NG

   REPLACE TRANSPONDER KEY ECU ASSEMBLY

5. INSPECT UNLOCK WARNING SWITCH ASSEMBLY

   1. Remove the unlock warning switch assembly.

      Click here

   2. Inspect the unlock warning switch assembly.

      Click here

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE UNLOCK WARNING SWITCH ASSEMBLY

   Click here

   OK

6. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - UNLOCK WARNING SWITCH ASSEMBLY)

   1. Disconnect the E5 unlock warning switch assembly connector.

   2. Disconnect the E21 transponder key ECU assembly connector.

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

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      E5-1 - E21-3 (KSW)	Always	Below 1 Ω
      E5-2 - Body ground	Always	Below 1 Ω
      E5-1 - Body ground	Always	10 kΩ or higher
      E21-3 (KSW) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   OK

   REPLACE TRANSPONDER KEY ECU ASSEMBLY

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR