DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK DRIVING SUPPORT ECU

    A01DUTDE05

    Note


    • As disconnecting the connector to perform inspections may cause DTCs to be stored, clear DTCs after performing inspections.

    • As the connector may be damaged if a load of more than 10 kg (22 lb) is applied to it, do not apply any more load than necessary to the connector.


    1. Disconnect the G119 ECU 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
      G119-30 (B) - Body ground G - Body ground ECU power source circuit Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      G119-25 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the G119 ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G119-7 (MODE) - Body ground SB - Body ground Distance control switch signal Ignition switch ON, distance control switch off 11 to 14 V
      Ignition switch ON, distance control switch on Below 1 V
      G119-32 (WIP2) - Body ground P - Body ground Windshield wiper switch circuit Ignition switch ON, windshield wiper switch Hi 11 to 14 V
      Ignition switch ON, windshield wiper switch Lo Approximately 9 V
      Ignition switch ON, windshield wiper switch off Below 1 V

      If the result is not as specified, the ECU may be malfunctioning.

  2. CHECK ECM (for 1GR-FE)

    A01DQYBE06

    1. Disconnect the C36, G55 and G56 ECM connectors.

    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
      G55-24 (BATT) - Body ground L - Body ground Power source circuit Always 11 to 14 V
      G56-21 (IGSW) - Body ground W - Body ground IG power source circuit Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      G55-8 (ST1-) - Body ground B - Body ground Stop light switch signal circuit Ignition switch ON, brake pedal released 11 to 14 V
      Ignition switch ON, brake pedal depressed Below 1 V
      G56-18 (STP) - Body ground V - Body ground Stop light switch signal circuit Brake pedal depressed 11 to 14 V
      Brake pedal released Below 1 V
      G56-11 (CCS) - Body ground B - Body ground Cruise control switch circuit Cruise control switch on Below 2.5 Ω
      Cruise control switch off 1 MΩ or higher
      +RES switch held on 235 to 245 Ω
      -SET switch held on 617 to 643 Ω
      CANCEL switch held on 1509 to 1571 Ω
      G56-17 (CCHG) - Body ground V - Body ground Cruise control switch circuit Cruise control switch on MODE switch held on Below 2.5 Ω
      Cruise control switch on MODE switch held off 1 MΩ or higher
      C36-12 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the C36, G55 and G56 ECM connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G56-24 (S) - Body ground V - Body ground Transmission control switch circuit Ignition switch ON, shift lever in S 11 to 14 V
      Ignition switch ON, shift lever not in S Below 1 V
      G56-16 (SFTU) - Body ground GR - Body ground Transmission control switch circuit Ignition switch ON, shift lever in S → shift lever moved to "+" 11 to 14 V → Below 1 V
      G56-22 (SFTD) - Body ground LG - Body ground Transmission control switch circuit Ignition switch ON, shift lever in S → shift lever moved to "-" 11 to 14 V → Below 1 V
      C34-27 (D) - Body ground B - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in D 11 to 14 V
      Ignition switch ON, shift lever not in D Below 1 V
      C34-35 (P) - Body ground L - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in P 11 to 14 V
      Ignition switch ON, shift lever not in P Below 1 V
      C34-28 (R) - Body ground R - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in R 11 to 14 V
      Ignition switch ON, shift lever not in R Below 1 V
      C34-29 (N) - Body ground G - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in N 11 to 14 V
      Ignition switch ON, shift lever not in N Below 1 V

      If the result is not as specified, the ECM may be malfunctioning.

  3. CHECK ECM (for 1KD-FTV)

    A01DQYBE07

    1. Disconnect the C93, G57 and G58 ECM connectors.

    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
      G57-23 (BATT) - Body ground L - Body ground Power source circuit Always 11 to 14 V
      G58-24 (IGSW) - Body ground W - Body ground IG power source circuit Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      G57-9 (ST1-) - Body ground B - Body ground Stop light switch signal circuit Ignition switch ON, brake pedal released 11 to 14 V
      Ignition switch ON, brake pedal depressed Below 1 V
      G57-8 (STP) - Body ground V - Body ground Stop light switch signal circuit Brake pedal depressed 11 to 14 V
      Brake pedal released Below 1 V
      G57-14 (CCS) - Body ground B - Body ground Cruise control switch circuit Cruise control switch on Below 2.5 Ω
      Cruise control switch off 1 MΩ or higher
      +RES switch held on 235 to 245 Ω
      -SET switch held on 617 to 643 Ω
      CANCEL switch held on 1509 to 1571 Ω
      G58-9 (CCHG) - Body ground V - Body ground Cruise control switch circuit Cruise control switch on MODE switch held on Below 2.5 Ω
      Cruise control switch on MODE switch held off 1 MΩ or higher
      C93-1 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω

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

  4. CHECK TRANSMISSION CONTROL ECU (for 1KD-FTV)

    A01DTATE01

    1. Disconnect the G70 ECU 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
      G70-5 (BATT) - Body ground L - Body ground Power source circuit Always 11 to 14 V
      G70-6 (IG2) - Body ground B - Body ground IG power source circuit Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V

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

    3. Reconnect the G70 ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G70-15 (S) - Body ground V - Body ground Transmission control switch circuit Ignition switch ON, shift lever in S 11 to 14 V
      Ignition switch ON, shift lever not in S Below 1 V
      G70-22 (SFTU) - Body ground GR - Body ground Transmission control switch circuit Ignition switch ON, shift lever in S → shift lever moved to "+" 11 to 14 V → Below 1 V
      G70-23 (SFTD) - Body ground LG - Body ground Transmission control switch circuit Ignition switch ON, shift lever in S → shift lever moved to "-" 11 to 14 V → Below 1 V
      G71-8 (D) - Body ground B - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in D 11 to 14 V
      Ignition switch ON, shift lever not in D Below 1 V
      G69-13 (P) - Body ground L - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in P 11 to 14 V
      Ignition switch ON, shift lever not in P Below 1 V
      G71-9 (R) - Body ground R - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in R 11 to 14 V
      Ignition switch ON, shift lever not in R Below 1 V
      G69-14 (N) - Body ground G - Body ground Park/neutral position switch signal Ignition switch ON, shift lever in N 11 to 14 V
      Ignition switch ON, shift lever not in N Below 1 V

      If the result is not as specified, the ECU may be malfunctioning.