ENTRY AND START SYSTEM (for Entry Function) TERMINALS OF ECU

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

1. Disconnect the E29 ECU connector.

2. Measure the resistance and voltage of the wire harness side connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   E29-17 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   E29-1 (+B) - Body ground	B - Body ground	+B power supply	Always	11 to 14 V
   E29-18 (IG) - Body ground	B - Body ground	Ignition power supply	Engine switch off	Below 1 V
   			Engine switch on (IG)	11 to 14 V
   E29-3 (TSW1) - E29-17 (E)	G - W-B	Door outside handle (driver side) lock switch signal	Switch released	10 kΩ or higher
   			Switch pressed in	Below 1 Ω
   E29-4 (TSW2) - E29-17 (E)	BR - W-B	Door outside handle (front passenger side) lock switch signal	Switch released	10 kΩ or higher
   			Switch pressed in	Below 1 Ω
   E30-25 (TSW3) - E29-17 (E)*3	G - W-B	Door outside handle (rear LH) lock switch signal*1 Door outside handle (rear RH) lock switch signal*2	Switch released	10 kΩ or higher
   			Switch pressed in	Below 1 Ω
   E30-26 (TSW4) - E29-17 (E)*3	G - W-B	Door outside handle (rear RH) lock switch signal*1 Door outside handle (rear LH) lock switch signal*2	Switch released	10 kΩ or higher
   			Switch pressed in	Below 1 Ω
   E29-7 (TSW5) - E29-17 (E)	L - W-B	Back door lock switch signal	Switch released	10 kΩ or higher
   			Switch pressed in	Below 1 Ω
   E29-10 (LIN) - E29-17 (E)	GR - W-B	LIN line	Always	10 kΩ or higher
   E29-27 (CANH) - E29-17 (E)	LG - W-B	CAN line	Always	10 kΩ or higher
   E29-28 (CANL) - E29-17 (E)	R - W-B	CAN line	Always	10 kΩ or higher

   Tip:
   

   • *1: for LHD

   • *2: for RHD

   • *3: For vehicles with entry function for rear doors.

   
   

   • If the result is not as specified, the wire harness side may have a malfunction.

3. Reconnect the E29 ECU connector.

4. Measure the voltage of the connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   E29-33 (CLG1) - E29-34 (CG1B)	L - W	Door electrical key oscillator (driver side) sensor signal	All doors closed, all doors locked and engine switch off	Alternating between 5 V and below 1 V
   			Door unlocked or door open	Below 1 V
   E29-22 (SEN1) - E29-17 (E)	R - W-B	Touch sensor detection signal	Door outside handle touched	11 to 14 V
   			Door outside handle not touched	Below 1 V
   E29-5 (SEL1) - E29-17 (E)	Y - W-B	Touch sensor activation control signal	Key at least 5 m (16.4 ft.) away from door	11 to 14 V
   			Key moved near outside door handle	Below 1 V
   E29-35 (CLG2) - E29-36 (CG2B)	L - R	Door electrical key oscillator (front passenger side) sensor signal	All doors closed, all doors locked and engine switch off	Alternating between 5 V and below 1 V
   			Door unlocked or door open	Below 1 V
   E29-23 (SEN2) - E29-17 (E)	R - W-B	Touch sensor detection signal	Door outside handle touched	11 to 14 V
   			Door outside handle not touched	Below 1 V
   E29-6 (SEL2) - E29-17 (E)	Y - W-B	Touch sensor activation control signal	Key at least 5 m (16.4 ft.) away from door	11 to 14 V
   			Key moved near outside door handle	Below 1 V
   E30-8 (CLG3) - E30-9 (CG3B)*3	L - W	Door electrical key oscillator (rear LH) sensor signal*1 Door electrical key oscillator (rear RH) sensor signal*2	All doors closed, all doors locked and engine switch off	Alternating between 5 V and below 1 V
   			Door unlocked or door open	Below 1 V
   E30-28 (SEN3) - E29-17 (E)*3	R - W-B	Touch sensor detection signal	Door outside handle touched	11 to 14 V
   			Door outside handle not touched	Below 1 V
   E30-1 (SEL3) - E29-17 (E)*3	Y - W-B	Touch sensor activation control signal	Key at least 5 m (16.4 ft.) away from door	11 to 14 V
   			Key moved near outside door handle	Below 1 V
   E30-10 (CLG4) - E30-11 (CG4B)*3	L - W	Door electrical key oscillator (rear RH) sensor signal*1 Door electrical key oscillator (rear LH) sensor signal*2	All doors closed, all doors locked and engine switch off	Alternating between 5 V and below 1 V
   			Door unlocked or door open	Below 1 V
   E30-27 (SEN4) - E29-17 (E)*3	R - W-B	Touch sensor detection signal	Door outside handle touched	11 to 14 V
   			Door outside handle not touched	Below 1 V
   E30-2 (SEL4) - E29-17 (E)*3	Y - W-B	Touch sensor activation control signal	Key at least 5 m (16.4 ft.) away from door	11 to 14 V
   			Key moved near outside door handle	Below 1 V
   E29-11 (CLG5) - E29-12 (CG5B)	SB - V	Indoor electrical key antenna (for front) sensor signal	30 seconds after driver side door opened and closed, engine switch off	Alternating between 5 V and below 1 V
   			Within 30 seconds after driver side door opened and closed, engine switch off	Below 1 V
   E29-13 (CLG6) - E29-14 (CG6B)	R - SB	Indoor electrical key antenna (for rear 1) sensor signal	30 seconds after driver side door opened and closed, engine switch off	Alternating between 5 V and below 1 V
   			Within 30 seconds after driver side door opened and closed, engine switch off	Below 1 V
   E29-15 (CLG7) - E29-16 (CG7B)	GR - W	Indoor electrical key antenna (for rear 2) sensor signal	30 seconds after driver side door opened and closed, engine switch off	Alternating between 5 V and below 1 V
   			Within 30 seconds after driver side door opened and closed, engine switch off	Below 1 V
   E29-31 (CLG8) - E29-32 (CG8B)	G - GR	Back door electrical key antenna (for outer) sensor signal	Back door opener switch off	Alternating between 5 V and below 1 V
   			Back door opener switch on	Below 1 V
   E29-29 (RCO) - E29-17 (E)	B - W-B	Door control receiver power source	Engine switch off, all doors closed and transmitter switch not pressed → pressed	Below 1 V → 4.6 to 5.4 V → Below 1 V
   E29-39 (RSSI) - E29-17 (E)	L - W-B	Door control receiver electric wave existence signal	Engine switch off, all doors closed and transmitter switch not pressed → pressed	11 to 14 V → Below 1 V
   E29-38 (RDA) - E29-17 (E)	LG - W-B	Door control receiver data input signal	Engine switch off, all doors closed and transmitter switch not pressed → pressed	Below 1 V → 11 to 14 V → Below 1 V
   E29-21 (BZR) - E29-17 (E)	LG - W-B	Wireless door lock buzzer signal	Answer-back on	Pulse generation
   			Answer-back off	Below 1 V

   Tip:
   

   • *1: for LHD

   • *2: for RHD

   • *3: For vehicles with entry function for rear doors.

   
   

   • If the result is not as specified, the ECU may have a malfunction.

CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

1. Disconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.

2. Measure the resistance and voltage of the wire harness side connectors.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   2D-62 (GND2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   E3-1 (GND3) - Body ground	BR - Body ground	Ground	Always	Below 1 Ω
   2A-1 (ALTB) - Body ground	B - Body ground	ALTB power supply	Always	11 to 14 V
   2B-20 (BATB) - Body ground	L - Body ground	BATB power supply	Always	11 to 14 V
   E1-6 (AM1) - Body ground	W - Body ground	AM1 power supply	Always	11 to 14 V
   E2-1 (AM2) - Body ground	W - Body ground	AM2 power supply	Always	11 to 14 V
   2A-1 (IG) - Body ground	G - Body ground	IG1 signal	Engine switch on (IG)	11 to 14 V
   			Engine switch off	Below 1 V
   2D-8 (ACC) - Body ground	GR - Body ground	ACC signal	Engine switch on (ACC)	11 to 14 V
   			Engine switch off	Below 1 V
   E3-5 (CANH) - Body ground	SB - Body ground	CAN communication line	Always	10 kΩ or higher
   E3-6 (CANL) - Body ground	B - Body ground	CAN communication line	Always	10 kΩ or higher
   E3-15 (CANN) - Body ground	R - Body ground	CAN communication line	Always	10 kΩ or higher
   E3-16 (CANP) - Body ground	GR - Body ground	CAN communication line	Always	10 kΩ or higher
   2D-20 (LIN1) - Body ground	GR - Body ground	LIN communication line	Always	10 kΩ or higher
   E3-10 (LIN2) - Body ground	G - Body ground	LIN communication line	Always	10 kΩ or higher

   
   

   • If the result is not as specified, the wire harness side may have a malfunction.

3. Reconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.

4. Measure the voltage of the connectors.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   E1-24 (DCTY) - Body ground	L - Body ground*1 Y - Body ground*2	Driver side door courtesy switch input	Driver side door open	Below 1 V
   			Engine switch off, and driver side door courtesy switch off	Pulse generation (see waveform 1 or 2)
   E2-21 (PCTY) - Body ground	Y - Body ground*1 L - Body ground*2	Front passenger side door courtesy switch input	Front passenger side door open	Below 1 V
   			Engine switch off, and passenger side door courtesy switch off	Pulse generation (see waveform 3 or 4)
   2C-2 (LCTY) - Body ground	W - Body ground	Rear door LH courtesy light switch input	Rear door LH open	Below 1 V
   			Engine switch off, and rear LH side door courtesy switch off	Pulse generation (see waveform 5 or 6)
   E2-7 (RCTY) - Body ground	G - Body ground	Rear door RH courtesy light switch input	Rear door RH open	Below 1 V
   			Engine switch off, and rear RH side door courtesy switch off	Pulse generation (see waveform 7 or 8)
   E2-25 (BCTY) - Body ground	W - Body ground	Back door courtesy light switch input	Back door open	Below 1 V
   			Engine switch off, and back door closed	Pulse generation (see waveform 9 or 10)
   E3-7 (HZSW) - Body ground	BE - Body ground	Hazard warning light signal	Answer-back on	Below 1 V
   			Answer-back off	11 to 14 V
   E1-26 (BDSU) - Body ground	L - Body ground	Back door opener switch input	Back door lock opener switch off	Below 1 V
   			Back door lock opener switch on	Pulse generation (see waveform 11 or 12)

   Tip:
   

   • *1: for LHD

   • *2: for RHD

   If the result is not as specified, the ECU may have a malfunction.

5. 

   Using an oscilloscope, check waveform 1.

   Table 1. Waveform 1 (Reference)

   Item	Content
   Terminal No. (Symbol)	E1-24 (DCTY) - Body ground
   Tool Setting	5 V/DIV., 20 ms/DIV.
   Condition	Engine switch off, and driver side door courtesy switch off

6. 

   Using an oscilloscope, check waveform 2.

   Table 2. Waveform 2 (Reference)

   Item	Content
   Terminal No. (Symbol)	E1-24 (DCTY) - Body ground
   Tool Setting	5 V/DIV., 20 ms/DIV.
   Condition	Engine switch off, and driver side door courtesy switch off

7. 

   Using an oscilloscope, check waveform 3.

   Table 3. Waveform 3 (Reference)

   Item	Content
   Terminal No. (Symbol)	E2-21 (PCTY) - Body ground
   Tool Setting	5 V/DIV., 20 ms/DIV.
   Condition	Engine switch off, and passenger side door courtesy switch off

8. 

   Using an oscilloscope, check waveform 4.

   Table 4. Waveform 4 (Reference)

   Item	Content
   Terminal No. (Symbol)	E2-21 (PCTY) - Body ground
   Tool Setting	5 V/DIV., 20 ms/DIV.
   Condition	Engine switch off, and passenger side door courtesy switch off

9. 

   Using an oscilloscope, check waveform 5.

   Table 5. Waveform 5 (Reference)

   Item	Content
   Terminal No. (Symbol)	2C-2 (LCTY) - Body ground
   Tool Setting	5 V/DIV., 20 ms/DIV.
   Condition	Engine switch off, and rear LH side door courtesy switch off

10. 

    Using an oscilloscope, check waveform 6.

    Table 6. Waveform 6 (Reference)

    Item	Content
    Terminal No. (Symbol)	2C-2 (LCTY) - Body ground
    Tool Setting	5 V/DIV., 20 ms/DIV.
    Condition	Engine switch off, and rear LH side door courtesy switch off

11. 

    Using an oscilloscope, check waveform 7.

    Table 7. Waveform 7 (Reference)

    Item	Content
    Terminal No. (Symbol)	E2-7 (RCTY) - Body ground
    Tool Setting	5 V/DIV., 20 ms/DIV.
    Condition	Engine switch off, and rear RH side door courtesy switch off

12. 

    Using an oscilloscope, check waveform 8.

    Table 8. Waveform 8 (Reference)

    Item	Content
    Terminal No. (Symbol)	E2-7 (RCTY) - Body ground
    Tool Setting	5 V/DIV., 20 ms/DIV.
    Condition	Engine switch off, and rear RH side door courtesy switch off

13. 

    Using an oscilloscope, check waveform 9.

    Table 9. Waveform 9 (Reference)

    Item	Content
    Terminal No. (Symbol)	E2-25 (BCTY) - Body ground
    Tool Setting	5 V/DIV., 20 ms/DIV.
    Condition	Engine switch off, and back door closed

14. 

    Using an oscilloscope, check waveform 10.

    Table 10. Waveform 10 (Reference)

    Item	Content
    Terminal No. (Symbol)	E2-25 (BCTY) - Body ground
    Tool Setting	5 V/DIV., 20 ms/DIV.
    Condition	Engine switch off, and back door closed

15. 

    Using an oscilloscope, check waveform 11.

    Table 11. Waveform 11 (Reference)

    Item	Content
    Terminal No. (Symbol)	E1-26 (BDSU) - Body ground
    Tool Setting	5 V/DIV., 20 ms/DIV.
    Condition	Engine switch off, all doors closed and Back door lock opener switch on

16. 

    Using an oscilloscope, check waveform 12.

    Table 12. Waveform 12 (Reference)

    Item	Content
    Terminal No. (Symbol)	E1-26 (BDSU) - Body ground
    Tool Setting	5 V/DIV., 20 ms/DIV.
    Condition	Engine switch off, all doors closed and Back door lock opener switch on

CHECK POWER BACK DOOR UNIT (w/ Power Back Door)

1. Disconnect the L52 unit connector.

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   L52-10 (ECUB) - Body ground	R - Body ground	ECUB power supply	Always	11 to 14 V
   L52-11 (GND) - Body ground	W-B - Body ground	Body 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 L52 unit connector.

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   L52-2 (DC+) - L52-1 (DC-)	R - B	Power back door lock motor circuit	Back door lock motor is operating	11 to 14 V
   L52-2 (DC+) - L52-1 (DC-)	R - B	Power back door lock motor circuit	Back door lock motor is stopped	Below 1 V

   If the result is not as specified, the ECU may have a malfunction.