Clearance Sonar System Terminals Of Ecu

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Park Assist Monitoring. Lexus Gs430, Gs300. Uzs190 Grs190

  1. CHECK CLEARANCE WARNING ECU

Clearance Sonar System -- Terminals Of Ecu



CHECK CLEARANCE WARNING ECU

Lexus Gs430, Gs300. Uzs190 Grs190.Park Assist Monitoring.Clearance Sonar System.Clearance Sonar System Terminals Of Ecu


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
IG (A40-8) - E (A40-27)
G-Y - W-B
IG signal / IG power source
Engine switch on (IG)
10 to 14 V
E (A40-27) - Body ground
W-B - Body ground
ECU ground
Always
Below 1 Ω
S1 (A40-1) - EF (A40-14)
GR - BR
*1
No. 3 ultrasonic sensor
(Front right sensor)
Signals are transmitted from ECU to front right sensor (During OFF sensing)
Pulse generation
(see waveform 1)
GR-R - BR-B
*2
T1 (A40-2) - EF (A40-14)
L-W - BR
*1
No. 3 ultrasonic sensor
(Front right sensor)
Signals are transmitted from ECU to front right sensor (During OFF sensing)
Pulse generation
(see waveform 2)
L-W - BR-B
*2
S2 (A40-3) - EF (A40-14)
R - BR
*1
No. 3 ultrasonic sensor
(Front right center sensor)
Signals are transmitted from ECU to front right center sensor (During OFF sensing)
Pulse generation
(see waveform 1)
R - BR-B
*2
T2 (A40-4) - EF (A40-14)
R-L - BR
*1
No. 3 ultrasonic sensor
(Front right center sensor)
Signals are transmitted from ECU to front right center sensor (During OFF sensing)
Pulse generation
(see waveform 2)
R-G - BR-B
*2
S3 (A40-5) - EF (A40-14)
G - BR
*1
No. 3 ultrasonic sensor
(Front left center sensor)
Signals are transmitted from ECU to front left center sensor (During OFF sensing)
Pulse generation
(see waveform 1)
G - BR-B
*2
T3 (A40-6) - EF (A40-14)
G-R - BR
*1
No. 3 ultrasonic sensor
(Front left center sensor)
Signals are transmitted from ECU to front left center sensor (During OFF sensing)
Pulse generation
(see waveform 2)
G-R - BR-B
*2
S4 (A40-7) - EF (A40-14)
P-L - BR
*1
No. 3 ultrasonic sensor
(Front left sensor)
Signals are transmitted from ECU to front left sensor (During OFF sensing)
Pulse generation
(see waveform 1)
P-B - BR-B
*2
T4 (A40-21) - EF (A40-14)
V - BR
*1
No. 3 ultrasonic sensor
(Front left sensor)
Signals are transmitted from ECU to front left sensor (During OFF sensing)
Pulse generation
(see waveform 2)
V-R - BR-B
*2
EF (A40-14) -Body ground
BR - Body ground
*1
No. 3 ultrasonic sensor ground
Always
Below 1 Ω
BR-B - Body ground
*2
S5 (A40-10) - ER (A40-29)
GR - LG
No. 1 ultrasonic sensor
(Rear right sensor)
Signals are transmitted from ECU to front right sensor (During OFF sensing)
Pulse generation
(see waveform 1)
S6 (A40-11) - ER (A40-29)
W - LG
No. 1 ultrasonic sensor
(Rear left sensor)
Signals are transmitted from ECU to front left sensor (During OFF sensing)
Pulse generation
(see waveform 1)
S7 (A40-12) - ER (A40-29)
B - LG
No. 2 ultrasonic sensor
(Rear right center sensor)
Signals are transmitted from ECU to rear right center sensor (During OFF sensing)
Pulse generation
(see waveform 1)
S8 (A40-13) - ER (A40-29)
R-B - LG
No. 2 ultrasonic sensor
(Rear left center sensor)
Signals are transmitted from ECU to rear left center sensor (During OFF sensing)
Pulse generation
(see waveform 1)
ER (A40-29) -Body ground
LG - Body ground
No. 1 ultrasonic sensor, No. 2 ground
Always
Below 1 Ω
CBZ (A40-9) - E (A40-27)
W - W-B
Buzzer output
Buzzer sounding
Pulse generation
(see waveform 3)
M+ (A40-26) - E (A40-27)
GR - W-B
BEAN communication
Engine switch on (IG),
Clearance sonar main switch ON
Pulse generation
(see waveform 4)
R1 (A40-23) - R2 (A40-24)
B - W
CAN communication
Engine switch on (IG)
Pulse generation
(see waveform 5)
HINT:
  1. *1: LHD
  2. *2: RHD


    Lexus Gs430, Gs300. Uzs190 Grs190.Park Assist Monitoring.Clearance Sonar System.Clearance Sonar System Terminals Of Ecu

  1. Reference:

    1. Waveform 1

      Item
      		Content
      Symbols
      (Terminal No.)
      		S1 (A40-1) - EF (A40-14)
      S2 (A40-3) - EF (A40-14)
      S3 (A40-5) - EF (A40-14)
      S4 (A40-7) - EF (A40-14)
      S5 (A40-10) - ER (A40-29)
      S6 (A40-11) - ER (A40-29)
      S7 (A40-12) - ER (A40-29)
      S8 (A40-13) - ER (A40-29)
      Tool Setting
      		2 V/DIV., 100 μsec./DIV.
      Condition
      		Signals are transmitted from ECU to sensor (During OFF sensing)


      2. Lexus Gs430, Gs300. Uzs190 Grs190.Park Assist Monitoring.Clearance Sonar System.Clearance Sonar System Terminals Of Ecu

    2. Waveform 2

      Item
      		Content
      Symbols
      (Terminal No.)
      		T1 (A40-2) - EF (A40-14)
      T2 (A40-4) - EF (A40-14)
      T3 (A40-6) - EF (A40-14)
      T4 (A40-21) - EF (A40-14)
      Tool Setting
      		2 V/DIV., 100 μsec./DIV.
      Condition
      		Signals are transmitted from ECU to sensor (During OFF sensing)


      3. Lexus Gs430, Gs300. Uzs190 Grs190.Park Assist Monitoring.Clearance Sonar System.Clearance Sonar System Terminals Of Ecu

    3. Waveform 3

      Item
      		Content
      Symbols
      (Terminal No.)
      		CBZ (A40-9) - E (A40-27)
      Tool Setting
      		2 V/DIV., 1 msec./DIV.
      Condition
      		Buzzer sounding


      4. Lexus Gs430, Gs300. Uzs190 Grs190.Park Assist Monitoring.Clearance Sonar System.Clearance Sonar System Terminals Of Ecu

    4. Waveform 4

      Item
      		Content
      Symbols
      (Terminal No.)
      		M+ (A40-26) - E (A40-27)
      Tool Setting
      		2 V/DIV., 1 msec./DIV.
      Condition
      		Engine switch on (IG)
      Clearance sonar main switch ON


      5. Lexus Gs430, Gs300. Uzs190 Grs190.Park Assist Monitoring.Clearance Sonar System.Clearance Sonar System Terminals Of Ecu

    5. Waveform 5

      Item
      		Content
      Symbols
      (Terminal No.)
      		R1 (A40-23) - R2 (A40-24)
      Tool Setting
      		2 V/DIV., 50 μsec./DIV.
      Condition
      		Engine switch on (IG)