Terminals Of Ecu

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DISTANCE CONTROL ECU

Fig 1: Identifying Terminals Of Distance Control ECU

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SPECIFIED CONDITION CHART

Symbols (Terminals No.)	Wiring Color	Condition	Specified Condition
D2-1 - D2-12 (B - GND)	B-R - BR	Always	10 to 14 V
D2-2 - D2-12 (WIP2 - GND)	L-O - BR	Ignition switch ON Wiper switch OFF --> HI	Below 1 V --> 10 to 14 V
D2-3 - D2-12 (WASH - GND)	L-Y - BR	Ignition switch ON Washer switch OFF --> ON	10 to 14 V Below 1 V
D2-10 - Body ground (SGND - Body ground)	BR - Body ground	Always	Below 1 Ω
D2-12 - Body ground (GND - Body ground)	BR - Body ground	Always	Below 1 Ω
D2-13 - D2-12 (IGB - GND)	W-L - BR	Ignition switch ON	10 to 14 V
D2-16 - D2-12 (MODE - GND)	W - BR	Ignition switch ON Distance control switch OFF --> ON	10 to 14 V --> Below 1 V
D2-22 - D2-12 (LRDD - GND)	G - BR	Ignition switch ON	Pulse generation (*1)
D2-23 - D2-12 (LRRD - GND)	Y- BR	Ignition switch ON	Pulse generation (*2)
D2-24 - D2-12 (ELC - GND)	B-W - BR	Ignition switch ON	Pulse generation (*3)
D2-25 - D2-12 (LCS - GND)	W-R - BR	Ignition switch ON	Pulse generation (*4)

Reference: Oscilloscope wave form (*1)
HINT:
- Terminal: LRDD - GND
- Gauge set: 2 V/DIV, 10 ms/DIV
- Condition: Ignition switch ON
Fig 2: Identifying Oscilloscope Wave Form (*1)
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Reference: Oscilloscope wave form (*2)
HINT:
- Terminal: LRDD - GND
- Gauge set: 2 V/DIV, 5 ms/DIV
- Condition: Ignition switch ON
Fig 3: Identifying Oscilloscope Wave Form (*2)
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Reference: Oscilloscope wave form (*3)
HINT:
- Terminal: ELC - GND
- Gauge set: 2 V/DIV, 5 ms/DIV
- Condition: Ignition switch ON
Fig 4: Identifying Oscilloscope Wave Form (*3)
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Reference: Oscilloscope wave form (*4)
HINT:
- Terminal: LCS - GND
- Gauge set: 2 V/DIV, 5 ms/DIV
- Condition: Ignition switch ON

Fig 5: Identifying Oscilloscope Wave Form (*4)

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ECM

Fig 6: Identifying Terminals Of ECM (1 Of 2)
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Fig 7: Identifying Terminals Of ECM (2 Of 2)
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1. Reference: Oscilloscope wave form (*1)
  HINT:
  - Terminal: LCS - E1
  - Gauge set: 1 V/DIV, 20 ms/DIV
  - Condition: Ignition switch ON
  Fig 8: Identifying Oscilloscope Wave Form (*1)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reference: Oscilloscope wave form (*2)
  HINT:
  - Terminal: ELC - E1
  - Gauge set: 1 V/DIV, 20 ms/DIV
  - Condition: Ignition switch ON
Fig 9: Identifying Oscilloscope Wave Form (*2)
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LASER RADAR SENSOR

Fig 10: Identifying Laser Radar Sensor Connector Terminals

SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
LGND - Body ground (L1-1 - Body ground)	R - Body ground	Always	Below 1 Ω
SGND - Body ground (L1-2 - Body ground)	BR - Body ground	Always	Below 1 Ω
LRDD - SGND (L1-3 - L1-2)	G - BR	Ignition switch ON	Pulse generation (*1)
LRRD - SGND (L1-4 - L1-2)	Y - BR	Ignition switch ON	Pulse generation (*2)
IGB - SGND (L1-5 - L1-2)	W-L - BR	Ignition switch ON	10 to 14 V

Reference: Oscilloscope wave form (*1)
HINT:
- Terminal: LRDD - SGND
- Gauge set: 1 V/DIV, 2 ms/DIV
- Condition: Ignition switch ON
Fig 11: Identifying Oscilloscope Wave Form (*1)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Reference: Oscilloscope wave form (*2)
HINT:
- Terminal: LRRD - SGND
- Gauge set: 1 V/DIV, 2 ms/DIV
- Condition: Ignition switch ON

Fig 12: Identifying Oscilloscope Wave Form (*2)

BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

Fig 13: Identifying Brake Actuator Assembly (Skid Control ECU) Connector Terminals (1 Of 2)
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Fig 14: Identifying Brake Actuator Assembly (Skid Control ECU) Connector Terminals (2 Of 2)
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