CLEARANCE SONAR SYSTEM > TERMINALS OF ECU

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CHECK CLEARANCE WARNING ECU

E073757E02


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



    E108066E02

  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. E109436E01

    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. E109439E01

    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. E109437E01

    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. E109438E01

    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)