IMMOBILISER SYSTEM(w/o Entry and Start System) Engine does not Start but Initial Combustion Occurs

DESCRIPTION

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CLEAR DTC

   1. Clear the DTCs.

      Body Electrical > Immobiliser > Clear DTCs

      Powertrain > Engine and ECT > Clear DTCs

   Result

   Proceed to
   NEXT

   NEXT

2. CHECK FOR DTC

   1. Check for DTCs.

      Body Electrical > Immobiliser > Trouble Codes

      Powertrain > Engine and ECT > Trouble Codes

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART

   Click here

   A

3. CHECK WHETHER ENGINE STARTS

   1. Using a registered door control transmitter assembly, turn the ignition switch to ON.

   2. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

      OK

      Engine starts normally.

   Result

   Result	Proceed to
   Engine can be started	A
   Engine cannot be started	B

   A

   USE SIMULATION METHOD TO CHECK

   Click hereClick here

   B

4. CHECK ECM (TERMINAL IMI)

   1. for 1KR-FE

      1. Using an oscilloscope, check the waveform.

         

         *a	Component with harness connected (ECM)	*b	Component with harness connected (Transponder Key ECU Assembly)
         *c	Waveform	-	-

         Table 1. OK

         Tester Connection	Condition	Tool Setting	Specified Condition
         A34-42 (IMI) - E24-13 (EFIO)	Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal	2 V/DIV., 500 ms./DIV.	Pulse generation (See waveform)

   2. for 1PP

      1. Using an oscilloscope, check the waveform.

         

         *a	Component with harness connected (ECM)	*b	Component with harness connected (Transponder Key ECU Assembly)
         *c	Waveform	-	-

         Table 2. OK

         Tester Connection	Condition	Tool Setting	Specified Condition
         B56-19 (IMI) - E24-13 (EFIO)	Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal	2 V/DIV., 500 ms./DIV.	Pulse generation (See waveform)

   Result

   Result	Proceed to
   Normal waveform	A
   Waveform not output, or has abnormal wavelength or shape	B

   B

   CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - ECM)Click here

   A

5. CHECK ECM (TERMINAL IMO)

   1. for 1KR-FE

      1. Using an oscilloscope, check the waveform.

         

         *a	Component with harness connected (ECM)	*b	Component with harness connected (Transponder Key ECU Assembly)
         *c	Approximately 160 ms	*d	Approximately 270 ms
         *e	Waveform	-	-

         Table 3. OK

         Tester Connection	Condition	Tool Setting	Specified Condition
         A34-43 (IMO) - E24-12 (EFII)	Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal	2 V/DIV., 500 ms./DIV.	Pulse generation (See waveform)

   2. for 1PP

      1. Using an oscilloscope, check the waveform.

         

         *a	Component with harness connected (ECM)	*b	Component with harness connected (Transponder Key ECU Assembly)
         *c	Approximately 160 ms	*d	Approximately 270 ms
         *e	Waveform	-	-

         Table 4. OK

         Tester Connection	Condition	Tool Setting	Specified Condition
         B56-18 (IMO) - E24-12 (EFII)	Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal	2 V/DIV., 500 ms./DIV.	Pulse generation (See waveform)

   Result

   Result	Proceed to
   Normal waveform	A
   Waveform not output, or has abnormal wavelength or shape	B

   B

   REPLACE ECM

   for 1KR-FE:Click here

   for 1PP:Click here

   A

6. CHECK ECM (TERMINAL IMI)

   1. for 1KR-FE

      1. Using an oscilloscope, check the waveform.

         

         *a	Component with harness connected (ECM)	*b	Component with harness connected (Transponder Key ECU Assembly)
         *c	Waveform	*d	Approximately 160 ms
         *e	Approximately 270 ms	-	-

         Item	Content
         Terminal No. (Symbol)	A34-42 (IMI) - E24-13 (EFIO)
         Tool Setting	2 V/DIV., 500 ms./DIV.
         Condition	Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

   2. for 1PP

      1. Using an oscilloscope, check the waveform.

         

         *a	Component with harness connected (ECM)	*b	Component with harness connected (Transponder Key ECU Assembly)
         *c	Waveform	*d	Approximately 160 ms
         *e	Approximately 270 ms	-	-

         Item	Content
         Terminal No. (Symbol)	B56-19 (IMI) - E24-13 (EFIO)
         Tool Setting	2 V/DIV., 500 ms./DIV.
         Condition	Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

         Result

         Result	Proceed to
         Normal waveform	A
         Waveform not output, or has abnormal wavelength or shape	B

   B

   REPLACE TRANSPONDER KEY ECU ASSEMBLYClick here

   A

7. REGISTER ECU COMMUNICATION ID

   1. Register the communication ID between the transponder key ECU assembly and ECM.

      Tip:

      Refer to Service Bulletin.

   Result

   Proceed to
   NEXT

   NEXT

8. CHECK WHETHER ENGINE STARTS

   1. Using a registered door control transmitter assembly, turn the ignition switch to ON.

   2. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

      OK

      Engine starts normally.

   Result

   Result	Proceed to
   Engine can be started	A
   Engine cannot be started	B

   A

   END (REGISTERED COMMUNICATION ID WAS DEFECTIVE)

   B

9. REPLACE TRANSPONDER KEY ECU ASSEMBLY

   1. Replace the transponder key ECU assembly with a new one.

      Tip:

      Refer to Service Bulletin.

      Note:

      Key ID code registration is necessary when replacing the transponder key ECU assembly, refer to Service Bulletin.

   Result

   Proceed to
   NEXT

   NEXT

10. CHECK WHETHER ENGINE STARTS

    1. Using a registered door control transmitter assembly, turn the ignition switch to ON.

    2. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

       OK

       Engine starts normally.

    Result

    Result	Proceed to
    Engine can be started	A
    Engine cannot be started	B

    A

    END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)

    B

    GO TO SFI SYSTEM

    for 1KR-FE:Click here

    for 1PP:Click here

11. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - ECM)

    1. for 1KR-FE

       1. Disconnect the E24 transponder key ECU assembly connector.

       2. Disconnect the A34 ECM connector.

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

          Standard Resistance

          Tester Connection	Condition	Specified Condition
          E24-13 (EFIO) - A34-42 (IMI)	Always	Below 1 Ω
          A34-42 (IMI) or E24-13 (EFIO) - Body ground	Always	10 kΩ or higher

    2. for 1PP

       1. Disconnect the E24 transponder key ECU assembly connector.

       2. Disconnect the B56 ECM connector.

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

          Standard Resistance

          Tester Connection	Condition	Specified Condition
          E24-13 (EFIO) - B56-19 (IMI)	Always	Below 1 Ω
          B56-19 (IMI) or E24-13 (EFIO) - 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