DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK POWER MANAGEMENT CONTROL ECU

    A01FQJUE73

    1. Disconnect the A35, A36 and N92 power management control ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A35-1 (+B2) - N91-6 (E1) W - W-B Power source Power switch on (IG) 11 to 14 V
      A35-6 (ST1-) - N91-6 (E1) GR - W-B Brake cancel signal Power switch on (IG), brake pedal depressed 0 to 1.5 V
      Power switch on (IG), brake pedal released 11 to 14 V
      A36-1 (IG2) - N91-6 (E1) B - W-B Power source Power switch on (IG) 11 to 14 V
      N92-10 (STP) - N91-6 (E1) R - W-B Stop light switch signal Brake pedal depressed 11 to 14 V
      Brake pedal released 0 to 1.5 V
      N92-20 (SFTD) - N91-6 (E1) W - W-B Transmission control Power switch on (IG), shift lever in S 11 to 14 V
      Power switch on (IG), shift lever in (-) 0 to 1.5 V
      N92-21 (SFTU) - N91-6 (E1) Y - W-B Transmission control Power switch on (IG), shift lever in S 11 to 14 V
      Power switch on (IG), shift lever in (+) 0 to 1.5 V
      N92-22 (M) - N91-6 (E1) R - W-B Transmission control Power switch on (IG), shift lever in S 11 to 14 V
      Power switch on (IG), shift lever not in S 0 to 1.5 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

  2. CHECK DRIVING SUPPORT ECU

    A01FROYE13

    1. Disconnect the N5 driving support ECU connector.

      Note

      If a load of more than 10 kg (22 lb.) is placed on the connector, it may break. Do not place more load than is necessary on the 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
      N5-2 (CA3H) - N5-25 (GND)

      G - BR*1

      G - W-B*2

      		 CAN communication system Power switch on (IG)

      Pulse generation

      (See waveform 1)
      N5-6 (SPSW) - N5-25 (GND)

      Y - BR*1

      Y - W-B*2

      		 Distance control switch signal

      Power switch on (IG),

      distance control switch off

      		 1 MΩ or higher
      N5-6 (SPSW) - N5-25 (GND)

      Y - BR*1

      Y - W-B*2

      		 Distance control switch signal

      Power switch on (IG),

      distance control switch on

      		 Below 2.5 Ω
      N5-10 (CCHG) - N5-25 (GND)

      LG - BR*1

      LG - W-B*2

      		 Cruise control switch signal

      Cruise control main switch on,

      MODE switch off

      		 9 to 14 V
      N5-10 (CCHG) - N5-25 (GND)

      LG - BR*1

      LG - W-B*2

      		 Cruise control switch signal

      Cruise control main switch on,

      MODE switch on

      		 Below 1 V
      N5-17 (CA2L) - N5-25 (GND)

      LG - BR*1

      LG - W-B*2

      		 CAN communication system Power switch on (IG)

      Pulse generation

      (See waveform 2)
      N5-18 (CA1N) - N5-25 (GND)

      W - BR*1

      W - W-B*2

      		 CAN communication system Power switch on (IG)

      Pulse generation

      (See waveform 2)
      N5-20 (CA3L) - N5-25 (GND)

      SB - BR*1

      SB - W-B*2

      		 CAN communication system Power switch on (IG)

      Pulse generation

      (See waveform 2)
      N5-23 (CCS) - N5-25 (GND)

      GR - BR*1

      GR - W-B*2

      		 Cruise control switch signal Cruise control main switch on Below 2.5 Ω
      N5-23 (CCS) - N5-25 (GND)

      GR - BR*1

      GR - W-B*2

      		 Cruise control switch signal Cruise control main switch off 1 MΩ or higher
      N5-23 (CCS) - N5-25 (GND)

      GR - BR*1

      GR - W-B*2

      		 Cruise control switch signal +RES switch is held on 235 to 245 Ω
      N5-23 (CCS) - N5-25 (GND)

      GR - BR*1

      GR - W-B*2

      		 Cruise control switch signal -SET switch is held on 617 to 643 Ω
      N5-23 (CCS) - N5-25 (GND)

      GR - BR*1

      GR - W-B*2

      		 Cruise control switch signal CANCEL switch is held on 1509 to 1571 Ω
      N5-27 (STP-) - N5-25 (GND)

      R - BR*1

      R - W-B*2

      		 Stop light switch signal input Depress brake pedal 9 to 14 V
      N5-27 (STP-) - N5-25 (GND)

      R - BR*1

      R - W-B*2

      		 Stop light switch signal input Release brake pedal Below 1 V
      N5-28 (ST1-) - N5-25 (GND)

      GR - BR*1

      GR - W-B*2

      		 Stop light switch signal input

      Power switch on (IG),

      release brake pedal

      		 9 to 14 V
      N5-28 (ST1-) - N5-25 (GND)

      GR - BR*1

      GR - W-B*2

      		 Stop light switch signal input

      Power switch on (IG),

      depress brake pedal

      		 Below 1 V
      N5-32 (WIP2) - N5-25 (GND)

      L - BR*1

      L - W-B*2

      		 Windshield wiper switch signal

      Power switch on (IG),

      windshield wiper switch off

      		 Below 1 V
      N5-32 (WIP2) - N5-25 (GND)

      L - BR*1

      L - W-B*2

      		 Windshield wiper switch signal

      Power switch on (IG),

      windshield wiper switch Hi

      		 9 to 14 V
      N5-30 (B) - N5-25 (GND)

      L - BR*1

      L - W-B*2

      		 Power supply Power switch on (IG) 11 to 14 V
      N5-30 (B) - N5-25 (GND)

      L - BR*1

      L - W-B*2

      		 Power supply Power switch off Below 1 V
      N5-39 (CA2H) - N5-25 (GND)

      V - BR*1

      V - W-B*2

      		 CAN communication system Power switch on (IG)

      Pulse generation

      (See waveform 1)
      N5-40 (CA1P) - N5-25 (GND)

      G - BR*1

      G - W-B*2

      		 CAN communication system Power switch on (IG)

      Pulse generation

      (See waveform 1)

      • *1: for LHD

      • *2: for RHD

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. A01FQL6E76

      Using an oscilloscope, check waveform 1.

      Measurement Condition
      Item Content
      Tester Connection

      • N5-2 (CA3H) - N5-25 (GND)

      • N5-39 (CA2H) - N5-25 (GND)

      • N5-40 (CA1P) - N5-25 (GND)
      Tool Setting 1 V/DIV., 10 μs/DIV.
      Vehicle Condition Power switch on (IG)
    4. A01FVSXE67

      Using an oscilloscope, check waveform 2.

      Measurement Condition
      Item Content
      Tester Connection

      • N5-17 (CA2L) - N5-25 (GND)

      • N5-18 (CA1N) - N5-25 (GND)

      • N5-20 (CA3L) - N5-25 (GND)
      Tool Setting 1 V/DIV., 10 μs/DIV.
      Vehicle Condition Power switch on (IG)