DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU

  1. CHECK DRIVING SUPPORT ECU

    E158948N10
    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 G43 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

      G43-30 (B) - Body ground

      G - Body ground

      IG Power supply

      Engine switch on (IG)

      11 to 14 V

      G43-30 (B) - Body ground

      G - Body ground

      IG Power supply

      Engine switch off

      Below 1 V

      G43-6 (SPSW) - Body ground

      SB - Body ground

      Distance control switch signal

      Distance control switch on

      Below 2.5 Ω

      G43-6 (SPSW) - Body ground

      SB - Body ground

      Distance control switch signal

      Distance control switch off

      1 MΩ or higher

      G43-25 (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 G43 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

      G43-32 (WIP2) - Body ground

      P - Body ground

      Windshield wiper switch

      Engine switch on (IG), windshield wiper switch Hi

      11 to 14 V

      G43-32 (WIP2) - Body ground

      P - Body ground

      Windshield wiper switch

      Engine switch on (IG), windshield wiper switch Lo

      Approximately 9 V

      G43-32 (WIP2) - Body ground

      P - Body ground

      Windshield wiper switch

      Engine switch on (IG), windshield wiper switch off

      Below 1 V

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

  2. CHECK ECM (for 1UR-FE)

    E195784N03

    1. Disconnect the C30, G44 and G45 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

      G44-24 (BATT) - Body ground

      L - Body ground

      Power source

      Always

      11 to 14 V

      G45-21 (IGSW) - Body ground

      W - Body ground

      IG power source

      Engine switch on (IG)

      11 to 14 V

      G45-21 (IGSW) - Body ground

      W - Body ground

      IG power source

      Engine switch off

      Below 1 V

      G44-8 (ST1-) - Body ground

      B - Body ground

      Stop light switch signal

      Engine switch on (IG), brake pedal released

      11 to 14 V

      G44-8 (ST1-) - Body ground

      B - Body ground

      Stop light switch signal

      Engine switch on (IG), brake pedal depressed

      Below 1 V

      G45-18 (STP) - Body ground

      V - Body ground

      Stop light switch signal

      Brake pedal depressed

      11 to 14 V

      G45-18 (STP) - Body ground

      V - Body ground

      Stop light switch signal

      Brake pedal released

      Below 1 V

      G45-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      Cruise control switch on

      Below 2.5 Ω

      G45-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      Cruise control switch off

      1 MΩ or higher

      G45-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      +RES switch held on

      235 to 245 Ω

      G45-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      -SET switch held on

      617 to 643 Ω

      G45-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      CANCEL switch held on

      1509 to 1571 Ω

      G45-17 (CCHG) - Body ground

      V - Body ground

      Cruise control switch

      Cruise control switch on MODE switch held on

      Below 2.5 Ω

      G45-17 (CCHG) - Body ground

      V - Body ground

      Cruise control switch

      Cruise control switch on MODE switch held off

      1 MΩ or higher

      C30-12 (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 C30, G44 and G45 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

      G45-24 (S) - Body ground

      V - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever in S

      11 to 14 V

      G45-24 (S) - Body ground

      V - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever not in S

      Below 1 V

      G45-16 (SFTU) - Body ground

      GR - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever in S → shift lever moved to "+"

      11 to 14 V → Below 1 V

      G45-22 (SFTD) - Body ground

      LG - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever in S → shift lever moved to "-"

      11 to 14 V → Below 1 V

      C28-27 (D) - Body ground

      B - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in D

      11 to 14 V

      C28-27 (D) - Body ground

      B - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in D

      Below 1 V

      C28-35 (P) - Body ground

      L - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in P

      11 to 14 V

      C28-35 (P) - Body ground

      L - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in P

      Below 1 V

      C28-28 (R) - Body ground

      R - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in R

      11 to 14 V

      C28-28 (R) - Body ground

      R - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in R

      Below 1 V

      C28-29 (N) - Body ground

      G - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in N

      11 to 14 V

      C28-29 (N) - Body ground

      G - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in N

      Below 1 V

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

  3. CHECK ECM (for 1GR-FE)

    E195784N06

    1. Disconnect the C30, G106 and G107 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

      G106-24 (BATT) - Body ground

      L - Body ground

      Power source

      Always

      11 to 14 V

      G107-21 (IGSW) - Body ground

      W - Body ground

      IG power source

      Engine switch on (IG)

      11 to 14 V

      G107-21 (IGSW) - Body ground

      W - Body ground

      IG power source

      Engine switch off

      Below 1 V

      G106-8 (ST1-) - Body ground

      B - Body ground

      Stop light switch signal

      Engine switch on (IG), brake pedal released

      11 to 14 V

      G106-8 (ST1-) - Body ground

      B - Body ground

      Stop light switch signal

      Engine switch on (IG), brake pedal depressed

      Below 1 V

      G107-18 (STP) - Body ground

      V - Body ground

      Stop light switch signal

      Brake pedal depressed

      11 to 14 V

      G107-18 (STP) - Body ground

      V - Body ground

      Stop light switch signal

      Brake pedal released

      Below 1 V

      G107-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      Cruise control switch on

      Below 2.5 Ω

      G107-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      Cruise control switch off

      1 MΩ or higher

      G107-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      +RES switch held on

      235 to 245 Ω

      G107-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      -SET switch held on

      617 to 643 Ω

      G107-11 (CCS) - Body ground

      B - Body ground

      Cruise control switch

      CANCEL switch held on

      1509 to 1571 Ω

      G107-17 (CCHG) - Body ground

      V - Body ground

      Cruise control switch

      Cruise control switch on MODE switch held on

      Below 2.5 Ω

      G107-17 (CCHG) - Body ground

      V - Body ground

      Cruise control switch

      Cruise control switch on MODE switch held off

      1 MΩ or higher

      C30-12 (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 C30, G106 and G107 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

      G107-24 (S) - Body ground

      V - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever in S

      11 to 14 V

      G107-24 (S) - Body ground

      V - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever not in S

      Below 1 V

      G107-16 (SFTU) - Body ground

      GR - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever in S → shift lever moved to "+"

      11 to 14 V → Below 1 V

      G107-22 (SFTD) - Body ground

      LG - Body ground

      Transmission control switch

      Engine switch on (IG), shift lever in S → shift lever moved to "-"

      11 to 14 V → Below 1 V

      C28-27 (D) - Body ground

      B - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in D

      11 to 14 V

      C28-27 (D) - Body ground

      B - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in D

      Below 1 V

      C28-35 (P) - Body ground

      L - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in P

      11 to 14 V

      C28-35 (P) - Body ground

      L - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in P

      Below 1 V

      C28-28 (R) - Body ground

      R - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in R

      11 to 14 V

      C28-28 (R) - Body ground

      R - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in R

      Below 1 V

      C28-29 (N) - Body ground

      G - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever in N

      11 to 14 V

      C28-29 (N) - Body ground

      G - Body ground

      Park/neutral position switch signal

      Engine switch on (IG), shift lever not in N

      Below 1 V

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