SMART ENTRY AND START SYSTEM(for Start Function) TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B006YKKN72

    1. Disconnect the A13, R8 and K62 certification ECU (smart key ECU assembly) connectors.

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      A13-16 (NE) - Body ground B - Body ground Input Engine speed signal Always 10 kΩ or higher Engine Condition
      R8-25 (STP1) - Body ground BE - Body ground Input Stop light switch signal Brake pedal depressed → Brake pedal released 9 V or higher → 1 V or less Stop Light Switch1
      K62-4 (+B) - K62-18 (E) W - W-B Input Power source Always 11 to 14 V -
      K62-22 (P) - K62-18 (E) R - W-B Input P position signal Shift lever in P → Shift lever not in P 30 kΩ or higher → Below 200 Ω Shift P Signal
      K62-15 (CUTB) - Body ground R - Body ground Input Dark current cut pin* Always 11 to 14 V -
      K62-18 (E) - Body ground W-B - Body ground - GND Always Below 1 Ω -
      K62-21 (SSW2) - Body ground L - Body ground Input

      SSW2 contact signal

      Tech Tips

      Backup for SSW1. Behaves the same way as SSW1.

      		 Engine switch pushed → Engine switch not pushed Below 15 Ω → 10 kΩ or higher Start Switch2
      K62-23 (SSW1) - Body ground GR - Body ground Input SSW1 contact signal Engine switch pushed → Engine switch not pushed Below 15 Ω → 10 kΩ or higher Start Switch1
      K62-19 (SPD) - Body ground R - Body ground Input Vehicle speed signal Always 30 kΩ or higher Vehicle Speed Signal

      • *: In order to prevent the vehicle battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is installed in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of radio waves every 0.25 seconds, which form the detection area, stops).

    3. Connect the A13, R8 and K62 certification ECU (smart key ECU assembly) connectors.

    4. Measure the voltage and resistance, and check for pulses according to the value(s) in the table below.

      Tester Connection Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      A13-20 (STA) - K62-18 (E) L - W-B Input When starting the engine, this monitors the voltage sent from terminal STAR to the starter relay to judge whether the engine is "being started". Engine switch pressed and held with brake pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off) 6 V or higher*3 → 1.0 V or less -
      A13-9 (STAR) - K62-18 (E) P - W-B Input / Output

      Outputs voltage to the starter relay


      • Outputs voltage (12 V) to the starter relay when starting the engine. (Max. 30 sec. Turns off when an engine speed of 1000 rpm.)

      Tech Tips

      When Hi is selected, a start request signal (STAR) will not be output even though a start request signal (STSW) is input.

      		 Engine switch pressed and held with brake pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off) 6 V or higher*3 → 1.0 V or less -

      Receives neutral start switch (P, N position detection) signal


      • Monitors whether the neutral start switch is on (P or N) or off (other than P or N). Applies voltage via a resistor (large) in the certification ECU (smart key ECU assembly). When the neutral start switch is on, due to the starter relay coil resistance (small) using some of the voltage, the voltage at terminal STAR will be low (2.7 V or less), and when the neutral start switch is off, the voltage will be high (9 V or more).

      Perform the following operations except while the engine is cranking:


      • Shift lever in any position other than P or N → Shift lever in P or N (at 20°C (68°F))

      		 9 V or higher → 2.7 V or less Neutral SW/ Clutch SW
      A13-16 (NE) - K62-18 (E) B - W-B Input Engine speed signal Idling (engine warmed up)

      Pulse generation

      (See waveform 1)

      		 Engine Condition
      R8-25 (STP1) - K62-18 (E) BE - W-B Input Stop light switch signal Brake pedal released → Brake pedal depressed 1 V or less → 9 V or higher Stop Light Switch1
      K62-14 (SLP) - K62-18 (E) BE - W-B Input Steering lock position signal Steering locked → Steering unlocked 11 to 14 V → 1.5 V or less Steering Unlock Switch
      K62-25 (SLR+) - K62-18 (E) W - W-B Output

      Steering lock motor operation command signal

      (Steering lock motor operation permission signal sent from the certification ECU (smart key ECU assembly))

      When a door is opened, the steering lock motor will be operated if all of the following conditions are met:


      • The steering is unlocked.

      • The engine switch is off.

      • The shift lever is in P.

      Pulse generation

      (See waveform 2)

      		 -
      K62-13 (LIN) - K62-18 (E) B - W-B Input / Output LIN communication line Engine switch on (IG) Pulse generation Steering Lock Start Cond
      K62-22 (P) - K62-18 (E) R - W-B Input P position signal Shift lever in P → Shift lever not in P 9 V or higher → 2.76 V or less Shift P Signal
      K62-21 (SSW2) - K62-18 (E) L - W-B Input

      SSW2 contact signal

      Tech Tips

      Backup for SSW1. Behaves the same way as SSW1.

      		 Engine switch not pushed → Engine switch pushed 9 V or higher → 1 V or less Start Switch2
      K62-23 (SSW1) - K62-18 (E) GR - W-B Input SSW1 contact signal Engine switch not pushed → Engine switch pushed 9 V or higher → 1 V or less Start Switch1
      K62-16 (ACCD) - K62-18 (E) LG - W-B Output ACC signal Engine switch off → Engine switch on (ACC) 1 V or less → 8.5 V or higher ACC Relay Monitor
      K62-17 (IG1D) - K62-18 (E) R - W-B Output IG signal Engine switch on (ACC) → Engine switch on (IG) 1 V or less → 9 V or higher IG Relay Monitor (Outside)
      K62-19 (SPD) - K62-18 (E) R - W-B Input Vehicle speed signal Vehicle being driven at approx. 5 km/h (3 mph)

      Pulse generation

      (See waveform 3)

      		 Vehicle Speed Signal
      K62-8 (CLG5) - K62-18 (E) B - W-B Output Output to No. 1 indoor electrical key antenna assembly (front floor)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Within 30 seconds of closing any door

      Pulse generation

      (See waveform 4)

      		 -
      K62-9 (CG5B) - K62-18 (E) LG - W-B Output Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Within 30 seconds of closing any door

      Pulse generation

      (See waveform 4)

      		 -
      R8-5 (CLG6) - K62-18 (E) W - W-B Output Output to No. 1 indoor electrical key antenna assembly (rear floor)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Within 30 seconds of closing any door

      Pulse generation

      (See waveform 4)

      		 -
      R8-6 (CG6B) - K62-18 (E) R - W-B Output Output to No. 1 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Within 30 seconds of closing any door

      Pulse generation

      (See waveform 4)

      		 -
      K62-5 (TXCT) - K62-11 (AGND) GR - BE Output Signal output to transponder key amplifier Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed Below 1 V

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      • Frame Error

      • Response
      K62-6 (CODE) - K62-11 (AGND) B - BE Input Signal input from transponder key amplifier Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed Below 1 V
      K62-7 (VC5) - K62-11 (AGND) BE - BE Output Transponder key amplifier power supply Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed Below 1 V
      K62-11 (AGND) - Body ground BE - Body ground - Transponder key amplifier ground Always Below 1 Ω
      K62-5 (TXCT) - K62-11 (AGND) GR - BE Output

      Signal output to transponder key amplifier

      (Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves)

      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

      Pulse generation

      (See waveform 5)

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      • Frame Error

      • Response
      K62-6 (CODE) - K62-11 (AGND) B - BE Input

      Signal input from transponder key amplifier

      (Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly))

      Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch

      Tech Tips

      Remove the transmitter battery before performing this inspection.

      Pulse generation

      (See waveform 6)
      K62-7 (VC5) - K62-11 (AGND) BE - BE Output

      Transponder key amplifier power supply

      (Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated)

      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

      Pulse generation

      (See waveform 7)
      A13-3 (EFII) - K62-18 (E)*1 V - W-B Input

      EFI communication input

      (Signal input from ECM to certification ECU (smart key ECU assembly))

      		 Engine switch off 11 to 14 V

      • B279986

      • B279A12

      • EFI Code Receive

      • Engine Start Request
      A13-4 (EFIO) - K62-18 (E)*1 GR - W-B Output

      EFI communication output

      (Signal output from certification ECU (smart key ECU assembly) to ECM)

      		 Engine switch off 11 to 14 V → 1 V or less
      A13-3 (EFII) - K62-18 (E)*1 V - W-B Input

      EFI communication input

      (Signal input from ECM to certification ECU (smart key ECU assembly))

      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      Pulse generation

      (See waveform 8)
      A13-4 (EFIO) - K62-18 (E)*1 GR - W-B Output

      EFI communication output

      (Signal output from certification ECU (smart key ECU assembly) to ECM)

      		 Engine switch turned on (IG) using registered electrical key transmitter sub-assembly

      Pulse generation

      (See waveform 9)
      K62-20 (IND) - K62-18 (E) W - W-B Output Security indicator output Engine switch off → on (IG) Pulse generation → Below 2 V -
      R8-7 (WCSW) - K62-18 (E)*2 LG - W-B Output Wireless charger system stop signal

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly inside vehicle

      3. Engine switch off → on (ACC)

      Below 1 V → 4.5 to 6 V

      (For 1 second after engine switch on (ACC))

      		 -

      • *1: w/o ID Code Box

      • *2: w/ Wireless Charging System

      Tech Tips


      • *3: While the engine is cranking, the battery voltage may drop to approximately 6 V.

      • The waveform of the steering lock actuator motor stopped can be checked without performing any particular operation.

      • The waveform of the steering lock actuator motor operating can be checked if either of the following operations is performed:


        • To unlock the steering, bring the electrical key transmitter sub-assembly into the cabin and turn the engine switch on (ACC) or on (IG).

        • To lock the steering, open a door with the engine switch off and the shift lever in P.

    5. Using an oscilloscope, check the waveform of the ECU.

      Note

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. B007150N12

        Waveform 1

        Measurement Condition
        Item Content
        Tester Connection A13-16 (NE) - K62-18 (E)
        Tool Setting 2 V/DIV., 2 ms./DIV.
        Condition Idling (engine warmed up)

        Tech Tips

        The wavelength becomes shorter as the engine speed increases.

      2. B006ZQLC62
        *a Steering lock motor not operating
        *b Steering lock motor operating

        Waveform 2

        Measurement Condition
        Item Content
        Tester Connection K62-25 (SLR+) - K62-18 (E)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition

        When a door is opened, the steering lock motor will be operated if all of the following conditions are met:


        • The steering is unlocked.

        • The engine switch is off.

        • The shift lever is in P.
      3. B006ZCRN21

        Waveform 3

        Measurement Condition
        Item Content
        Tester Connection K62-19 (SPD) - K62-18(E)
        Tool Setting 5 V/DIV., 20 ms./DIV.
        Condition Vehicle being driven at approx. 5 km/h (3 mph)

        Tech Tips

        The wavelength becomes shorter as the vehicle speed increases.

      4. B0071G4C02
        *a For 30 seconds after any door closed
        *b After 30 seconds or more have elapsed since any door closed

        Waveform 4

        Measurement Condition
        Item Content
        Tester Connection

        K62-8 (CLG5) - K62-18 (E)

        K62-9 (CG5B) - K62-18 (E)

        R8-5 (CLG6) - K62-18 (E)

        R8-6 (CG6B) - K62-18 (E)
        Tool Setting 2 V/DIV., 500 ms/DIV.
        Condition

        Procedure:


        1. Engine switch off

        2. Electrical key transmitter sub-assembly not inside vehicle

        3. Within 30 seconds of closing any door
      5. B006X35N19

        Waveform 5

        Measurement Condition
        Item Content
        Tester Connection K62-5 (TXCT) - K62-11 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed
      6. B00710NC01
        *a Waveform
        *b Waveform (detail)

        Waveform 6

        Measurement Condition
        Item Content
        Tester Connection K62-6 (CODE) - K62-11 (AGND)
        Tool Setting

        • Waveform

          1 V/DIV., 20 ms./DIV.

        • Waveform (detail)

          2 V/DIV., 100 μs./DIV.
        Condition Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch*

        Tech Tips

        *: Remove the transmitter battery before performing this inspection.

      7. B006YC5N06

        Waveform 7

        Measurement Condition
        Item Content
        Tester Connection K62-7 (VC5) - K62-11 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

      8. Waveform 8

        B006Y3UC03
        *a Approximately 160 ms. *b Approximately 270 ms.
        Measurement Condition
        Item Content
        Tester Connection A13-3 (EFII) - K62-18 (E)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      9. Waveform 9

        B006XASC02
        *a Approximately 160 ms. *b Approximately 270 ms.
        Measurement Condition
        Item Content
        Tester Connection A13-4 (EFIO) - K62-18 (E)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Engine switch turned on (IG) using registered electrical key transmitter sub-assembly

  2. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)

    B0071ASN04

    1. Disconnect the K65 steering lock ECU (steering lock actuator or upper bracket assembly) connector.

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Terminal No. (Symbol) Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      K65-1 (GND) - Body ground W-B - Body ground - Ground Always Below 1 Ω -
      K65-6 (IG2) - K65-1 (GND) LG - W-B Input IG signal (IG2 power supply input for steering lock motor) Engine switch off Below 1 V -
      K65-7 (B) - Body ground W - Body ground Input Constant power supply Always 11 to 14 V -

    3. Connect the K65 steering lock ECU (steering lock actuator or upper bracket assembly) connector.

    4. Measure the voltage, and check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      K65-3 (IGE) - K65-1 (GND) W - W-B Input Steering lock motor operation permission signal (motor operation permission signal supplied by certification ECU (smart key ECU assembly))

      Steering lock motor operating when all conditions met, and then door opened:


      • Shift lever in P

      • Steering unlocked

      • Engine switch turned off

      Pulse generation

      (See waveform 1)

      • Power Supply Short

      • Unlock Request Receive

      • Lock Request Receive
      K65-4 (SLP1) - K65-1 (GND) BE - W-B Output Steering lock bar position signal (signal output from steering unlock sensor) Steering locked → unlocked 11 to 14 V → Below 1.5 V Sensor Value
      K65-5 (LIN) - K65-1 (GND) B - W-B Input / Output LIN communication line Engine switch on (IG) Pulse generation Steering Lock Start Cond

      Tech Tips


      • There is 1 motor and 2 sensors built into the steering lock actuator or upper bracket assembly.

      • When taking measurements when the lock motor is stopped, it is not necessary to perform any operations.

      • In order to take measurements when the lock motor is operating, perform either of the following operations:


        • To unlock the steering, carry the key and turn the engine switch on (ACC) or on (IG).

        • To lock the steering, turn the engine switch off with the shift lever in P, and then open a door.

    5. Using an oscilloscope, check the waveform.

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. B006XUZC03
        *a Steering lock motor not operating
        *b Steering lock motor operating

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection K65-3 (IGE) - K65-1 (GND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition

        Steering lock motor operating when all conditions met, and then door opened:


        • Shift lever in P

        • Steering unlocked

        • Engine switch turned off

  3. CHECK ID CODE BOX (IMMOBILISER CODE ECU) (w/ ID Code Box)

    B006ZPDN01

    1. Disconnect the K139 ID code box (immobiliser code ECU) connector.

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      K139-1 (+B) - Body ground LA-GR - Body ground Input Power source Always 11 to 14 V -
      K139-5 (GND) - Body ground W-B - Body ground - Ground Always Below 1 Ω

    3. Reconnect the K139 ID code box (immobiliser code ECU) connector.

    4. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      K139-3 (EFII) - K139-5 (GND) LG - W-B Input

      EFI communication input

      (Signal input from ECM to ID code box (immobiliser code ECU))

      		 Engine switch off 11 to 14 V

      Entry&Start


      • EFI Code Receive

      • Engine Start Request
      K139-3 (EFII) - K139-5 (GND) LG - W-B Input

      EFI communication input

      (Signal input from ECM to ID code box (immobiliser code ECU))

      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      Pulse generation

      (See waveform 1)
      K139-4 (EFIO) - K139-5 (GND) L - W-B Output

      EFI communication output

      (Signal output from ID code box (immobiliser code ECU) to ECM)

      		 Engine switch off Below 1 V
      K139-4 (EFIO) - K139-5 (GND) L - W-B Output

      EFI communication output

      (Signal output from ID code box (immobiliser code ECU) to ECM)

      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      Pulse generation

      (See waveform 2)
      K139-2 (LIN) - K139-5 (GND) GR - W-B Input/Output LIN communication line Engine switch on (IG) Pulse generation

      Entry&Start


      • Steering Lock Start Cond

    5. Using an oscilloscope, check the waveform.

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. Waveform 1

        B006Y3UC03
        *a Approximately 160 ms *b Approximately 270 ms
        Item Content
        Tester Connection K139-3 (EFII) - K139-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      2. Waveform 2

        B006XASC02
        *a Approximately 160 ms *b Approximately 270 ms
        Item Content
        Tester Connection K139-4 (EFIO) - K139-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

  4. CHECK ECM (for A25A-FKS)

    B006ZQXN02

    1. Measure the voltage and resistance, and check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      A24-35 (+B2) - A24-10 (E1) L - W-B Input Ignition power supply Engine switch on (IG) 11 to 14 V -
      A24-9 (+B) - A24-10 (E1) L - W-B Input Ignition power supply Engine switch on (IG) 11 to 14 V -
      A24-15 (MREL) - A24-10 (E1) W - W-B Input Ignition power supply Engine switch on (IG) 11 to 14 V -
      A24-1 (BATT) - A24-10 (E1) G - W-B Input +B power supply Always 11 to 14 V -
      A24-10 (E1) - Body ground W-B - Body ground - Ground Always Below 1 Ω -
      A24-36 (E2) - Body ground W-B - Body ground - Ground Always Below 1 Ω -
      A24-25 (IMO) - A24-10 (E1) V - W-B Output

      EFI communication input

      (Signal input from ECM to certification ECU (smart key ECU assembly))

      		 Engine switch off 11 to 14 V -
      A24-25 (IMO) - A24-10 (E1) V - W-B Output

      EFI communication input

      (Signal input from ECM to certification ECU (smart key ECU assembly))

      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      Pulse generation

      (See waveform 1)

      		 -
      A24-26 (IMI) - A24-10 (E1) GR - W-B Input

      EFI communication input

      (Signal output from certification ECU (smart key ECU assembly) to ECM)

      		 Engine switch off 11 to 14 V → 1 V or less -
      A24-26 (IMI) - A24-10 (E1) GR - W-B Input

      EFI communication input

      (Signal output from certification ECU (smart key ECU assembly) to ECM)

      		 Engine switch turned on (IG) using registered electrical key transmitter sub-assembly

      Pulse generation

      (See waveform 2)

      		 -

    2. Using an oscilloscope, check the waveform.

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. Waveform 1 (Reference)

        B006Y3UC22
        *a Approximately 160 ms. *b Approximately 270 ms.
        Measurement Condition
        Item Content
        Tester Connection A24-25 (IMO) - A24-10 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      2. Waveform 2 (Reference)

        B006XASC02
        *a Approximately 160 ms. *b Approximately 270 ms.
        Measurement Condition
        Item Content
        Tester Connection A24-26 (IMI) - A24-10 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Engine switch turned on (IG) using registered electrical key transmitter sub-assembly

  5. CHECK ECM (except A25A-FKS)

    B006YGOC13
    *A for 2GR-FKS *B for 2AR-FE

    1. Measure the voltage and resistance, and check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      A23-3 (+B2) - C96-53 (E1)*1 L - W-B Input Ignition power supply Engine switch on (IG) 11 to 14 V -
      A22-3 (+B2) - C58-59 (E1)*2
      A23-2 (+B) - C96-53 (E1)*1 L - W-B Input Ignition power supply Engine switch on (IG) 11 to 14 V -
      A22-2 (+B) - C58-59 (E1)*2
      A23-46 (MREL) - C96-53 (E1)*1 W - W-B Input Ignition power supply Engine switch on (IG) 11 to 14 V -
      A22-46 (MREL) - C58-59 (E1)*2
      A23-1 (BATT) - C96-53 (E1)*1 R - W-B Input +B power supply Always 11 to 14 V -
      A22-1 (BATT) - C58-59 (E1)*2
      C96-53 (E1) - Body ground*1 W-B - Body ground - Ground Always Below 1 Ω -
      C58-59 (E1) - Body ground*2
      A23-45 (IMO) - C96-53 (E1)*1 V - W-B Output

      EFI communication input

      (Signal input from ECM to certification ECU (smart key ECU assembly))*3

      (Signal input from ECM to ID code box (immobiliser code ECU))*4

      		 Engine switch off 11 to 14 V -
      A22-45 (IMO) - C58-59 (E1)*2
      A23-45 (IMO) - C96-53 (E1)*1 V - W-B Output

      EFI communication input

      (Signal input from ECM to certification ECU (smart key ECU assembly))*3

      (Signal input from ECM to ID code box (immobiliser code ECU))*4

      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

      Pulse generation

      (See waveform 1)

      		 -
      A22-45 (IMO) - C58-59 (E1)*2
      A23-59 (IMI) - C96-53 (E1)*1 GR - W-B Input

      EFI communication input

      (Signal output from certification ECU (smart key ECU assembly) to ECM)*3

      (Signal output from ID code box (immobiliser code ECU) to ECM)*4

      		 Engine switch off 11 to 14 V → 1 V or less -
      A22-28 (IMI) - C58-59 (E1)*2
      A23-59 (IMI) - C96-53 (E1)*1 GR - W-B Input

      EFI communication input

      (Signal output from certification ECU (smart key ECU assembly) to ECM)*3

      (Signal output from ID code box (immobiliser code ECU) to ECM)*4

      		 Engine switch turned on (IG) using registered electrical key transmitter sub-assembly

      Pulse generation

      (See waveform 2)

      		 -
      A22-28 (IMI) - C58-59 (E1)*2

      • *1: for 2GR-FKS

      • *2: for 2AR-FE

      • *3: w/o ID Code Box

      • *4: w/ ID Code Box

    2. Using an oscilloscope, check the waveform.

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. Waveform 1 (Reference)

        B006Y3UC22
        *a Approximately 160 ms. *b Approximately 270 ms.
        Measurement Condition
        Item Content
        Tester Connection

        A23-45 (IMO) - C96-53 (E1)*1

        A22-45 (IMO) - C58-59 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

        • *1: for 2GR-FKS

        • *2: for 2AR-FE

      2. Waveform 2 (Reference)

        B006XASC02
        *a Approximately 160 ms. *b Approximately 270 ms.
        Measurement Condition
        Item Content
        Tester Connection

        A23-59 (IMI) - C96-53 (E1)*1

        A22-28 (IMI) - C58-59 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Engine switch turned on (IG) using registered electrical key transmitter sub-assembly

        • *1: for 2GR-FKS

        • *2: for 2AR-FE

  6. CHECK ENGINE SWITCH

    B006X46N82

    1. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      K63-6 (AGND) - Body ground BE - Body ground - Transponder key amplifier ground Always Below 1 Ω -
      K63-7 (TXCT) - K63-6 (AGND) GR - BE Input Immobiliser communication input Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed Below 1 V -
      K63-8 (CODE) - K63-6 (AGND) B - BE Output Immobiliser communication output Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed Below 1 V -
      K63-10 (VC5) - K63-6 (AGND) BE - BE Input Transponder key amplifier power supply Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed Below 1 V -

    2. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Input / Output Terminal Description Condition Specified Condition Related Data List Item/DTC
      K63-7 (TXCT) - K63-6 (AGND) GR - BE Input

      Signal input from certification ECU (smart key ECU assembly)

      (Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves)

      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

      Pulse generation

      (See waveform 1)

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      • Frame Error

      • Response

        Tech Tips

        If immobiliser key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above
      K63-8 (CODE) - K63-6 (AGND) B - BE Output

      Signal output to certification ECU (smart key ECU assembly)

      (Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly))

      		 Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch*

      Pulse generation

      (See waveform 2)
      K63-10 (VC5) - K63-6 (AGND) BE - BE Input

      Transponder key amplifier power supply

      (Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated)

      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

      Pulse generation

      (See waveform 3)

      Tech Tips

      *: Remove the transmitter battery before performing this inspection.

    3. Using an oscilloscope, check the waveform.

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. B006X35N18

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection K63-7 (TXCT) - K63-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed
      2. B00710NC01
        *a Waveform
        *b Waveform (detail)

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection K63-8 (CODE) - K63-6 (AGND)
        Tool Setting

        • Waveform

          1 V/DIV., 20 ms./DIV.

        • Waveform (detail)

          2 V/DIV., 100 μs./DIV.
        Condition Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch*

        Tech Tips

        *: Remove the transmitter battery before performing this inspection.

      3. B006YC5N05

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection K63-10 (VC5) - K63-6 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed