Terminals Of Ecu
- DISTANCE CONTROL ECU DISTANCE CONTROL ECU
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition B - GND (A20-1 - A20-12) BR - R Battery Always 10 to 14 V CANH (A20 - 8) L CAN communication signal CAN communication circuit - CANL (A20 - 9) W CAN communication signal CAN communication circuit - SGND - Body ground (A20-10 - Body ground) R - Body ground Ground Always Below 1 V GND - Body ground (A20-12 - Body ground) R - Body ground Ground Always Below 1 V IGB - GND (A20-13 - A20-12) V - R Ignition switch ON signal Ignition switch OFF -> ON (IG) Below 1 V -> 10 to 14 V LRDD - GND (A20-22 - A20-12) B - R Laser sensor input signal Ignition switch ON (IG) Pulse generation (see ) LRRD - GND (A20-23 - A20-12) G - R Laser sensor output signal Ignition switch ON (IG) Pulse generation (see ) - Reference: waveform 1
HINT:
- Terminal: LRDD - GND
- Gauge set: 2 V/DIV, 10 ms/DIV
- Condition: Ignition switch on (IG)
- Reference: waveform 2
HINT:
- Terminal: LRRD - GND
- Gauge set: 2 V/DIV, 5 ms/DIV
- Condition: Ignition switch on (IG)
- Reference: waveform 1
- ECM ECM
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition STP - E1 (A24-15 - B47-1) W - BR Stop light signal Brake pedal released (Stop light switch OFF) -> Brake pedal depressed (Stop lamp switch ON) Below 1 V -> 10 to 14 V CCS - E1 (D41-2 - B47-1) B - BR Cruise control main switch signal Ignition switch ON (IG) CANCEL switch ON SET/COAST switch ON RES/ACC switch ON Main switch ON 10 to 16 V 6.6 to 10.1 V 4.5 to 7.1 V 2.3 to 4.0 V Below 1 V ST1- - E1 (A24-16 - B47-1) GR - BR Stop light signal Ignition switch ON (IG) Brake pedal depressed (Stop light switch ON) -> Brake pedal released (Stop lamp switch OFF) Below 1 V -> 10 to 14 V CCHG - E1 (D41-4 - B47-1) V - BR Distance control switch signal Ignition switch ON (IG)Cruise control main switch ON MODE switch ON -> MODE switch OFF Below 1 V -> 10 to 14 V LGND - Body ground (A24-31 - Body ground) BR - Body ground Ground Always Below 1 V E1 - Body ground (B47-1 - Body ground) BR - Body ground Ground Always Below 1 V If the value is not within the standard range, some defects on the vehicle are suspected.
- LASER SENSOR TERMINAL DESCRIPTION CHART
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition LGND - Body ground (A36-1 - Body ground) BR - Body ground Distance signal Always Below 1 V SGND - Body ground (A36-2 - Body ground) R - Body ground Ground Always Below 1 V LRDD - SGND (A36-3 - A36-2) B - R Laser sensor output signal Ignition switch ON (IG) Pulse generation (see ) LRRD - SGND (A36-4 - A36-2) G - R Laser sensor input signal Ignition switch ON (IG) Pulse generation (see ) IGB - SGND (A36-5 - A36-2) V - R Power source Ignition switch ON (IG) 10 to 14 V - Reference: waveform 1
HINT:
- Terminal: LRDD - SGND
- Gauge set: 1 V/DIV, 2 ms/DIV
- Condition: Ignition switch on (IG)
- Reference: waveform 2
HINT:
- Terminal: LRRD - SGND
- Gauge set: 1 V/DIV, 2 ms/DIV
- Condition: Ignition switch on (IG)
- Reference: waveform 1