IMMOBILISER SYSTEM(w/o Entry and Start System) TERMINALS OF ECU

CHECK TRANSPONDER KEY ECU ASSEMBLY

1. Disconnect the G88 transponder key ECU assembly connector.

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

   Tester Connection	Input/Output	Wiring Color	Terminal Description	Condition	Specified Condition	Related Data List Item
   G88-1 (+B) - G88-5 (GND)	Input	BE - BR	Battery	Always	11 to 14 V	+B
   G88-2 (IG) - G88-5 (GND)	Input	LG - BR	Ignition switch signal	Ignition switch off	Below 1 V	IG SW
   				Ignition switch ON	11 to 14 V
   G88-3 (KSW) - G88-5 (GND)	Input	P - BR	Unlock warning switch signal	No key in ignition key cylinder	10 kΩ or higher	Key SW/B2780
   				Key in ignition key cylinder	Below 1 Ω
   G88-7 (CTY) - G88-5 (GND)*	Input	W - BR	Driver door courtesy light switch signal	Driver door closed	10 kΩ or higher	D Door Courtesy SW
   				Driver door open	Below 1 Ω
   G88-5 (GND) - Body ground	-	BR - Body ground	Ground	Always	Below 1 Ω	-

   *: for key registration when not using GTS

   If the result is not as specified, there may be a malfunction on the wire harness side.

3. Reconnect the G88 transponder key ECU assembly connector.

4. Measure the voltage and check for pulses according to the value(s) in the table below.

   Tester Connection	Input/Output	Wiring Color	Terminal Description	Condition	Specified Condition	Related Data List Item
   G88-8 (IND) - G88-5 (GND)	Output	GR - BR	Security indicator signal	No key in ignition key cylinder, or 20 seconds elapsed after turning ignition switch to ACC or off (immobiliser system set)	Pulse generation	Immobiliser
   				Key in ignition key cylinder (immobiliser system unset)	Below 1 V
   G88-9 (D) - G88-5 (GND)	Input/Output	Y - BR	DLC3 communication	Without communication	Below 1 V	-
   				During communication	Pulse generation
   G88-4 (ANT1) - G88-5 (GND)	Input/Output	R - BR	Transponder key amplifier power source	No key in ignition key cylinder	4 to 6 V	-
   				Within 3 seconds of inserting key into ignition key cylinder	Pulse generation (See waveform 1)
   G88-15 (ANT2) - G88-5 (GND)	Input/Output	W - BR	Transponder key amplifier communication signal	No key in ignition key cylinder	4 to 6 V	-
   				Within 3 seconds of inserting key into ignition key cylinder	Pulse generation (See waveform 2)
   G88-12 (EFII) - G88-5 (GND)	Output	LG - BR	ECM input signal	Ignition switch off	11 to 14 V	-
   				Check waveform 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.	Pulse generation (See waveform 3)
   G88-13 (EFIO) - G88-5 (GND)	Input	P - BR	ECM output signal	Ignition switch off	Below 1 V	-
   				Check waveform 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.	Pulse generation (See waveform 4)

   If the result is not as specified, the transponder key ECU assembly may be malfunctioning.

5. Using an oscilloscope, check the waveform.

   1. Waveform 1 (Reference)

      

      Table 1. Measurement Condition

      Item	Content
      Tester Connection	G88-4 (ANT1) - G88-5 (GND)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Within 3 seconds of inserting key into ignition key cylinder

   2. Waveform 2 (Reference)

      

      Table 2. Measurement Condition

      Item	Content
      Tester Connection	G88-15 (ANT2) - G88-5 (GND)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Within 3 seconds of inserting key into ignition key cylinder

   3. Waveform 3 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 3. Measurement Condition

      Item	Content
      Tester Connection	G88-12 (EFII) - G88-5 (GND)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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.

   4. Waveform 4 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 4. Measurement Condition

      Item	Content
      Tester Connection	G88-13 (EFIO) - G88-5 (GND)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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.

CHECK ECM (for 2AR-FE)

*1: w/ Blocking System

*2: w/o Blocking System

1. Inspect using an oscilloscope.

   Note:

   The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

   1. Waveform 1 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 5. Measurement Condition

      Item	Content
      Tester Connection	A62-29 (IMO) - B77-16 (E1)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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. Waveform 2 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 6. Measurement Condition

      Item	Content
      Tester Connection	A62-28 (IMI) - B77-16 (E1)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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

CHECK ECM (for 3ZR-FAE, 3ZR-FE)

*1: w/ Blocking System

*2: w/o Blocking System

1. Inspect using an oscilloscope.

   Note:

   The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

   1. Waveform 1 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 7. Measurement Condition

      Item	Content
      Tester Connection	A62-29 (IMO) - B75-16 (E1)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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. Waveform 2 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 8. Measurement Condition

      Item	Content
      Tester Connection	A62-28 (IMI) - B75-16 (E1)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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

CHECK ECM (for 1AD-FTV, 2AD-FHV, 2AD-DPF, 2AD-CCo)

1. Inspect using an oscilloscope.

   Note:

   The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

   1. Waveform 1 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 9. Measurement Condition

      Item	Content
      Tester Connection	A61-15 (IMO) - B76-109 (E1)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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. Waveform 2 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 10. Measurement Condition

      Item	Content
      Tester Connection	A61-16 (IMI) - B76-109 (E1)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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

CHECK TELEPHONE TRANSCEIVER ASSEMBLY (w/ Blocking System)

1. 

   Disconnect the G58 telephone transceiver assembly connector.

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

   Terminal No. (Symbol)	Input/Output	Wiring Color	Terminal Description	Condition	Specified Condition	Related Data List Item/DTC
   G58-6 (IG2) - G58-9 (E)	-	SB - W-B	Ignition power supply	Ignition switch ON	9 to 16 V	-
   G58-12 (+B) - G58-9 (E)	-	BR - W-B	+B power supply	Always	9 to 16 V	-
   G58-9 (E) - Body ground	-	W-B - Body ground	Ground	Always	Below 1 Ω	-

   If the result is not as specified, there may be a malfunction on the wire harness side.

3. Reconnect the G58 telephone transceiver assembly connector.

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

   Terminal No. (Symbol)	Input/Output	Wiring Color	Terminal Description	Condition	Specified Condition	Related Data List Item/DTC
   G58-1 (BLK1) - G58-9 (E)	Input	LG - W-B	Transponder key ECU assembly communication input	Ignition switch off	11 to 14 V	-
   G58-1 (BLK1) - G58-9 (E)	Input	LG - W-B	Transponder key ECU assembly communication input	Check waveform 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	Pulse generation (See waveform 1)	-
   G58-2 (BLK4) - G58-9 (E)	Output	P - W-B	Transponder key ECU assembly communication output	Ignition switch off	Below 1 V	-
   G58-2 (BLK4) - G58-9 (E)	Output	P - W-B	Transponder key ECU assembly communication output	Check waveform 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	Pulse generation (See waveform 2)	-
   G58-7 (BLK2) - G58-9 (E)	Output	LG - W-B	ECM communication output	Ignition switch off	Below 1 V	-
   G58-7 (BLK2) - G58-9 (E)	Output	LG - W-B	ECM communication output	Check waveform 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	Pulse generation (See waveform 1)	-
   G58-8 (BLK3) - G58-9 (E)	Input	P - W-B	ECM communication input	Ignition switch off	Below 1 V	-
   G58-8 (BLK3) - G58-9 (E)	Input	P - W-B	ECM communication input	Check waveform 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	Pulse generation (See waveform 2)	-

5. Inspect using an oscilloscope.

   Note:

   The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

   1. Waveform 1 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 11. Measurement Condition

      Item	Content
      Tester Connection	G58-1 (BLK1) - G58-9 (E) G58-7 (BLK2) - G58-9 (E)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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. Waveform 2 (Reference)

      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      Table 12. Measurement Condition

      Item	Content
      Tester Connection	G58-2 (BLK4) - G58-9 (E) G58-8 (BLK3) - G58-9 (E)
      Tool Setting	2 V/DIV., 500 ms./DIV.
      Condition	Check waveform 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