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Home >> Subaru >> 2016 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Electrical >> Starter >> Entry Start System Start System (Keyless Start) >> Entry & Start System (Start Function) >> Current Data Display & Save/System Operation Check Mode
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Current Data Display & Save/System Operation Check Mode

  1. [Current Data Display & Save]
    NOTE: By using the SSM3 and reading [Current Data Display & Save], you can read the statuses and values for switches, sensors, actuators, and other items without removing parts. Because the non-intrusive inspection allows you to read the intermittent statuses or signals without interfering with parts or lines, it is very convenient. By reading the [Current Data Display & Save] information at the initial stage of troubleshooting, you can save on time for diagnosing trouble.
    CAUTION: The normal values written in the chart below are for reference. Do not depend on reference value only when judging if the part is faulty.
    1. Connect the SSM3 to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn on the SSM3.
    4. Input the following menus: [Keyless access system] →[Collation ECM] →[Current Data Display & Save], or [Integ. unit mode] →[Current Data Display & Save], or [Brake Control System] →[ABS/VDC System] →[Current Data Display & Save], or [Engine Control System] →[Current Data Display & Save]

    SSM screen: [Each System Check] →[Keyless access system] →[Power Supply ECM] →[Current Data Display & Save]

    SSM ITEM DESCRIPTION

    Item Name Description/display range Normal value Remarks
    [Shift P signal] (1) Shift position is P
    Display range: ON/OFF
    ON: In shift position P
    OFF: Not in shift position P
    Use this item to find out if the shift switch (P) is faulty.
    [Steering unlock SW] This item indicates the steering unlock sensor signal output from the steering lock actuator.
    Display range: ON/OFF
    ON: Steering unlock
    OFF: Steering lock
    • In IG OFF and with the shift in the P position (transmission A/T), open (or close) one of the doors to lock the steering.
    • Change the power status to ACC ON or IG ON with the electrical key transmitter sub-assembly (electronic key) in the vehicle to unlock the steering.
    • The engine cannot be started when the steering unlock signal is OFF.
    [Stop Light Switch 1] Brake pedal status
    Display range: ON/OFF
    ON: Brake pedal is depressed
    OFF: Brake pedal is released
    • Use this item to find out if the stop light switch is faulty.
    • If the engine cannot be started due to a malfunction in the stop light switch signal, "OFF" is displayed.
    • In case of a malfunction, you can start the engine by holding down the push button start switch.
    [System SW1] Push button start switch 1 status
    Display range: ON/OFF
    ON: Push button start switch is pressed
    OFF: Push button start switch is released
    • This item may not be displayed if the push button start switch is pressed too quickly.
    • Use this item to find out if the push button start switch input signal is faulty.
    [System SW2] Push button start switch 2 status
    Display range: ON/OFF
    ON: Push button start switch is pressed
    OFF: Push button start switch is released
    • Back-up for push button start switch 1. However, when operating by holding down the push button start switch, if both push button start switch 1 and push button start switch 2 are not functioning properly, the control will not operate.
    • This switch operates in the same way as push button start switch 1.
    [Neutral SW/Clutch SW (AT model)] Shift position (P, N) status
    Display range: ON/OFF
    ON: The shift is in the P or N position
    OFF: The shift is not in the P or N position
    • Use this item to find out if the neutral start switch is faulty.
    • If the engine cannot be started due to a malfunction in the neutral start switch, "OFF" is displayed.
    [Neutral SW/Clutch SW (MT model)] Clutch pedal status
    Display range: ON/OFF
    ON: Clutch pedal is depressed
    OFF: Clutch pedal is released
    • Use this item to find out if the clutch start switch is faulty.
    • If the engine cannot be started due to a malfunction in the clutch start switch, "OFF" is displayed.
    [IG1 relay monitor (outside)] Coil voltage monitor status for the IG1 relay
    Display range: ON/OFF
    ON: IG ON
    OFF: IG OFF
    • Use this item to find out if the IG1 relay is faulty.
    • When in ACC ON, "OFF" is displayed.
    [IG1 relay monitor (inside)] Drive output monitor status for the IG1 relay
    Display range: ON/OFF
    ON: IG ON
    OFF: IG OFF
    • Use this item to find out if the IG1 relay is faulty.
    • When in ACC ON, "OFF" is displayed.
    [IG2 relay monitor (outside)] Coil voltage monitor status for the IG2 relay
    Display range: ON/OFF
    ON: IG ON
    OFF: IG OFF
    • Use this item to find out if the IG2 relay is faulty.
    • When in ACC ON, "OFF" is displayed.
    [IG2 relay monitor (inside)] Drive output monitor status for the IG2 relay
    Display range: ON/OFF
    ON: IG ON
    OFF: IG OFF
    • Use this item to find out if the IG2 relay is faulty.
    • When in ACC ON, "OFF" is displayed.
    [Starter request signal monitor] Engine start request signal status
    Display range: ON/OFF
    ON: With the shift in the P position, depressing the brake, press and hold the push button start switch (transmission A/T)
    ON: Depressing the clutch pedal, press and hold the push button start switch (transmission M/T)
    OFF: After approx. 1 second, release the push button start switch
    • If the engine cannot be started due to a malfunction in the start request signal, "OFF" is displayed.
    • If you press the push button start switch for a short time, the time "ON" is displayed will be very short. Therefore, you must press and hold it for a while.
    [ACC relay monitor] ACC relay drive status
    Display range: ON/OFF
    ON: ACC ON
    OFF: ACC OFF
    • When in IG ON, "ON" is displayed.
    • When the engine is cranking, "OFF" is displayed.
    [ACC Relay Cut Signal] ACC relay cut signal input status
    Display range: ON/OFF
    ON: When cranking
    OFF: When not cranking
    -
    [Engine Speed] Engine status
    Display range: [Stopped]/[rotating]
    [Rotating]: The engine is rotating
    [Stopped]: The engine is stopped
    -
    [Vehicle speed signal] Vehicle running/stopped status
    Display range: [Stopped status]/[Drive status]
    [Drive status]: The vehicle is running (at 5 km/h or faster)
    [Stopped status]: The vehicle is stopped
    -
    [Power supply status] Power status
    Display range: [All OFF status]/[ACC relay ON status]/[IG1 relay ON status]/[IG2 relay ON status]/[ST status]
    [All OFF]: ACC OFF and IG OFF
    ACC ON: ACC ON
    IG1 ON: IG ON
    IG2 ON: IG ON
    ST: Start request signal transmitting
    Because "IG1 ON" and "IG2 ON" are displayed almost simultaneously, you may not be able to see the "IG1 ON" indication. (Because "IG1 ON" is displayed for a short time.)
    [Powertrain Type] Vehicle identification status
    Display range: [Cnv-MT]/[Cnv-AT]
    [Cnv-AT]: A conventional A/T vehicle
    (A/T vehicle not equipped with HV)
    [Cnv-MT]: A conventional M/T vehicle
    -
    [IG1 outside circuit abnormal] Malfunction in the coil-side circuit for the IG1 relay Display range: Yes/No [Yes]: Circuit not functioning properly
    [No]: Circuit functioning properly
    • Use this item to find out if the IG1 relay is faulty.
    • If the engine cannot be started due to a malfunction in the IG1 relay, "OFF" is displayed.
    [IG2 outside circuit abnormal] Malfunction in the coil-side circuit for the IG2 relay Display range: Yes/No [Yes]: Circuit not functioning properly
    [No]: Circuit functioning properly
    • Use this item to find out if the IG2 relay is faulty.
    • If the engine cannot be started due to a malfunction in the IG2 relay, "OFF" is displayed.
    [Start-stop SW fault] This item detects a mismatch between the push button start switch 1 signal and the push button start switch 2 signal.
    Display range: Yes/No
    [Yes]: Switch not functioning properly (mismatch between the signals of push button start switches 1 and 2)
    [No]: switches functioning properly
    You can start the engine even when the result is [Yes]. However, you cannot use the "emergency IG OFF when running" or "emergency engine start when the brake is faulty" functions that are operated by pressing and holding the push button start switch.
    [Park Signal Mismatch] Shift position (P) signal malfunction Display range: Yes/No [Yes]: Signal not functioning properly (mismatch between the CAN communication and direct signal statuses)
    [No]: Signals functioning properly
    You can switch to OFF even when the result is [Yes]. (vehicle will not be left ACC ON or IG ON.)
    [Steering lock unlock wait time-out] Malfunction in the steering lock/unlock function Display range: Yes/No [Yes]: Lock/unlock not functioning properly (Example: the lock bar gets stuck)
    No: Lock/unlock functioning properly
    If the engine cannot be started due to a malfunction in the steering lock/unlock, "[Yes]" is displayed.
    [Key collation wait time-out] Key collation malfunction Display range: Yes/No [Yes]: Collation not functioning properly (A collation malfunction is detected when the ID code sent from the electronic key and the ID code recorded in the Collation ECM do not match.)
    [No]: Collation functioning properly
    If the engine cannot be started due to a key collation malfunction, [Yes] is displayed.
    [Shift N signal(1)] Shift in position N
    Display range: ON/OFF
    ON: The shift is in the N position
    OFF: The shift is not in the N position
    Use this item to find out if the shift switch (N) is faulty.
    (1) Transmission A/T
  2. Using the SSM3 and [Current Data Display & Save], identify if there is a problem or not, and narrow down the location of the problem.
    NOTE: Get into the vehicle carrying the electrical key transmitter sub-assembly (electronic key) with you, and perform the following operations with the power status in IG OFF and the shift in position P to check the result for each [Current Data Display & Save] item.
    Fig 1: Data Monitor Activity When Engine Is Started (A/T Transmission)
    G10216313Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Get into the vehicle carrying the electrical key transmitter sub-assembly (electronic key) with you, and perform the following operations with the power status in IG OFF to check the result for each [Current Data Display & Save] item.
    Fig 2: Data Monitor Activity When Engine Is Started (M/T Transmission)
    G10216314Courtesy of SUBARU OF AMERICA, INC.

    SSM screen: [Each System Check] →[Keyless access system] →[Collation ECM] →[Current Data Display & Save]

    SSM ITEM DESCRIPTION

    Item Name Description/Display Range Normal Value Remarks
    [Ignition] This item indicates the IG power input status of the smart key ECM assembly (collation ECM).
    Display range: ON/OFF
    ON: IG ON
    OFF: IG OFF
    When it is in the ACC ON state, "OFF" is displayed.
    [Immobilizer] This item indicates the engine immobilizer system status, as determined by the smart key ECM assembly (collation ECM).
    Display range: Unset/Set
    [Unset]: The engine immobilizer is unset (engine start permitted) (ACC ON or further)
    [Set]: The engine immobilizer is set (engine start prohibited) (IG OFF)
    When [Set] is displayed for this item, you cannot start the engine.
    NOTE:
    • The security indicator light blinks when [Set] is displayed for this item.
    • The security indicator light is associated with the set/unset status of the immobilizer, but not with the lock/unlock status of the steering wheel.
    [Sleep possible status] This item indicates the sleep enabled status of the steering lock ECM.
    Display range: [Sleep-mode possible]/[Sleep-mode not possible]
    [Sleep-mode possible]: Sleep mode can be used
    [Sleep-mode not possible]: Sleep mode can not be used
    -
    [Wake-up transmission status] This item indicates the transmission status of the wake-up signal for the steering lock ECM.
    Display range: [Yes]/[No]
    [Yes]: The wake-up signal is transmitted
    [No]: The wake-up signal is not transmitted
    -
    [Lock confirmation] This item indicates the lock confirmation status of the steering lock actuator assembly (steering lock ECM).
    Display range: [Set]/[UnSet]
    [Set]: The lock is set
    [UnSet]: The lock is not set
    When [UnSet] is displayed, the steering is not locked.
    [Unlock confirmation] This item indicates the unlock confirmation status of the steering lock actuator assembly (steering lock ECM).
    Display range: [Set]/[UnSet]
    [Set]: The unlock is set.
    [UnSet]: The unlock is not set.
    When [Unset] is displayed, the steering is not unlocked. (The engine cannot be started.)
    [Engine start] This item indicates the status of the engine start permission signal, which is decided by the steering actuator assembly (steering lock ECM) and sent to the smart key computer (collation ECM).
    Display range: [OK]/[NG]
    [OK]: The engine is permitted to start
    [NG]: The engine is prohibited from starting
    • If "OK" is displayed for this item, the smart key ECM assembly (collation ECM) receives the unlock confirmation signal from the steering lock actuator assembly (steering lock ECM) and enables fuel injection and the engine to start.
    • When [NG] is displayed for this item, you cannot start the engine.
    [Sensor abnormal (past)] This item indicates a history of malfunctions in the position sensor inside the steering lock actuator assembly (steering lock ECM).
    Display range: [NG(Past)]/[OK]
    [NG(Past)]: There is an error history (Both the lock and unlock sensors inside the steering lock actuator assembly (steering lock ECM) were ON at the same time. Normally, these sensors are not ON at the same time.)
    [OK]: There is no error history for the lock and unlock sensors inside the steering lock actuator assembly (steering lock ECM).
    If [NG(Past)] is displayed for this item, the problem might be caused by a malfunction of the position sensor inside the steering lock actuator assembly or a mechanical failure.
    [Motor power supply short-circuit abnormal (past)] This item indicates a history of malfunctions (circuit shorts) in the signal transmitted from the smart key ECM assembly (collation ECM) to the steering lock actuator assembly (steering lock ECM).
    Display range: [NG(Past)]/[OK]
    [NG(Past)]: There is a history of motor power supply short circuit
    [OK]: There is no history of motor power supply short circuit
    This item displays the history when a circuit malfunction occurs between the smart key ECM assembly (collation ECM) and the steering lock actuator assembly (steering lock ECM).
    [Motor driver short-circuit abnormal (past)] This item indicates a history of malfunctions (circuit shorts) in the motor drive circuit inside the steering lock actuator assembly (steering lock ECM). (The diagnostic code B2781 is output)
    Display range: [NG(Past)]/[OK]
    [NG(Past)]: A history of motor driver short circuit is output
    [OK]: No history of motor driver short circuit is output
    This item indicates the malfunctions in the steering lock motor drive circuit inside the steering lock actuator assembly (steering lock ECM).
    [Steering lock lock/unlock command reception history] This item indicates the unlock request signal reception history.
    Display range: [Unrec]/[Rec]
    [Rec]: There is a history of the unlock request signal being received
    [Unrec]: There is no history of the unlock request signal being received
    -
    [Lock bar engagement abnormal (history)] This item indicates a history of times when the steering lock bar was driven to the unlock position for a certain period of time but the steering wheel could not be properly unlocked.
    Display range: [With]/[Without]
    [With]: There is a lock bar engagement history
    [Without]: There is no lock bar engagement history
    -
    [Push start abnormal] This item indicates a history of push start malfunctions caused by the steering lock actuator assembly (steering lock ECM).
    Display range: [NG(Past)]/[OK]
    [NG(Past)]: There is a push start error history
    [OK]: There is no push start error history
    -
    [EEPROM access abnormal] This item indicates the steering lock ECM status.
    Display range: [NG(Past)]/[OK]
    [Abnormal]: Steering lock ECM not functioning properly
    [Normal]: Steering lock ECM functioning properly
    -
    [Engine start permission request reception status] This item indicates the reception status of the engine start permission signal, which is decided by the steering lock actuator assembly (steering lock ECM) and sent to the smart key ECM assembly (collation ECM).
    Display range: [NG]/[OK]
    [NG]: Signal not received
    [OK]: Signal received
    • If [OK] is displayed, the smart key ECM assembly (collation ECM) has received the unlock confirmation signal from the steering lock actuator assembly (steering lock ECM) and the engine injection and ignition have been permitted.
    • If [NG] is displayed for this item, the engine cannot be started.
    [L Code Check] This item indicates the result of collation between the smart key ECM assembly (collation ECM) and the steering lock actuator assembly (steering lock ECM).
    Display range: [NG(Past)]/[OK]
    [Abnormal]: Collation not functioning properly
    [Normal]: Collation functioning properly
    • The L code is not registered for the smart key ECM assembly (collation ECM) or the steering lock actuator assembly (steering lock ECM).
    • The steering cannot be locked.
    • The steering cannot be unlocked. (The engine cannot be started.)
    [Steering lock unlock request reception status] This item indicates the unlock request signal reception status.
    Display range: [NG(Past)]/[OK(10s)]
    [NG(Past)]: Not doing IG ON, ACC ON, or engine start operations
    [OK(10s)]: 10 seconds since IG ON, ACC ON, or engine start operations were done
    • If the unlock request signal is not received, the engine cannot be started.
    • If the steering unlock conditions are met but [OK(10s)] is not displayed, the smart key ECM assembly (collation ECM) might have a malfunction.
    [Steering lock lock request reception status] This item indicates the lock request signal reception status.
    Display range: [OK(10s)]/[NG(Past)]
    [OK(10s)]: The lock request signal is received for 10 seconds after a door is opened with the shift in the P position (transmission A/T) and the power status in IG OFF.
    [NG(Past)]: Anything other than the above
    If the steering lock conditions are met but [OK(10s)] is not displayed, the smart key ECM assembly (collation ECM) might have a malfunction.
    [L Code Collation result history] This item indicates the history of the results of collation between the smart key ECM assembly (collation ECM) and the steering lock actuator assembly (steering lock ECM).
    Display range: [NG(Past)]/[OK]
    [NG(Past)]: There is an error history of collation results
    [OK]: There is no error history of collation results
    -
    [S Code Check] This item indicates the collation result between the smart key ECM assembly and the ID code box.
    Display range: [NG(Past)]/[OK]
    [Abnormal]: Collation not functioning properly
    [Normal]: Collation functioning properly
    • The S code is not registered for the smart key ECM assembly or the ID code box.
    • The engine cannot be started.
    [S Code Collation result history] This item indicates the collation result history between the smart key ECM assembly and the ID code box.
    Display range: [NG(Past)]/[OK]
    [NG(Past)]: There is an error history of collation results
    [OK]: There is no error history of collation results
    -
    NOTE: Get into the vehicle carrying the electrical key transmitter sub-assembly (electronic key) with you, and perform the following operations with the power status in IG OFF and the shift in position P (transmission A/T) to check the result for each [Current Data Display & Save] item.
    Fig 3: Data Monitor Activity When Steering Locked/Unlocked
    G10216315Courtesy of SUBARU OF AMERICA, INC.

    SSM screen: [Each System Check] →[Engine Control System] →[Current Data Display & Save]

    SSM ITEM DESCRIPTION

    Item Name Description/display range Normal value Remarks
    [Engine Speed] Indicates the engine speed
    Display range: 0 to 16383.75 r/min
    Varies depending on the engine speed -
    [Starter Switch] Starter drive request
    Display range: ON/OFF
    ON: The starter drive request is output.
    OFF: The starter drive request is not output.
    If there is a malfunction, the engine cannot be cranked.
    [Starter cut relay] This item indicates the starter cut relay status.
    Display range: ON/OFF
    ON: The starter cut relay is ON
    OFF: The starter cut relay is OFF
    "ON" is displayed when the engine cannot be cranked.
    [Shift SW Status (P Range)] (1) This item indicates the neutral start switch status.
    Display range: ON/OFF
    ON: In shift position P
    OFF: Not in shift position P
    If there is a malfunction, the engine cannot be cranked.
    [Shift SW Status (N Range)] (1) This item indicates the neutral start switch status.
    Display range: ON/OFF
    ON: The shift is in the N position
    OFF: The shift is not in the N position
    If there is a malfunction, the engine cannot be cranked.
    [ST1] This item indicates the signal from the stop light switch assembly.
    Display range: ON/OFF
    ON: Brake pedal is depressed
    OFF: Brake pedal is released
    -
    [Ignition Switch] This item indicates the IG2 status.
    Display range: ON/OFF
    ON: IG2 relay is ON
    OFF: IG2 relay is OFF
    -
    (1) Automatic transmission
    NOTE: Perform the following operations to check the result for each [Current Data Display & Save] item.
    Fig 4: Data Monitor Activity For Starting System
    G10216316Courtesy of SUBARU OF AMERICA, INC.

    SSM screen: [Each System Check] →[Brake Control System] →[ABS/VDC System] →[Current Data Display & Save]

    SSM ITEM DESCRIPTION

    Item Name Description/display range Normal value Remarks
    [Wheel speed] This item indicates the vehicle speed.
    Display range: 0.0 to 326.4 [km/h]
    0.0 to 326.4 [km/h]
    (Approximately the same as the actual vehicle speed)
    -
  3. System Operation Check Mode
    1. Turn the ignition switch to OFF.
    2. Connect the SSM3 to the DLC3.
    3. Turn the ignition switch to ON, select [Keyless access system] →[Power Supply ECM] →[Work Support] →[System Operation Check Mode], and display the [System Operation Check Mode] list.
    4. Using the [System Operation Check Mode], identify if there is a problem or not, and narrow down the location of the problem.

      SSM screen: [Each System Check] →[Keyless access system] →[Power Supply ECM] →[Work Support] →[System Operation Check Mode]

      SSM ITEM DESCRIPTION

      Item Name Part to be forcibly driven Drive Remarks
      [Steering lock power supply] Smart key computer assembly (collation ECM) Supply/stop When in IG ON
      [STSW] Smart key computer assembly (collation ECM) Supply/stop Perform cranking in order to turn the starter switch ON. Be very careful regarding the service operation. When forcibly driving this item, implement it with the ignition ON.
      [IG2] Smart key computer assembly (collation ECM) Supply/stop Turn the ignition power (relay upstream battery side) ON. If you forcibly drive this item, there may be failure codes registered for the engine, transmission, and the VDC unit. In that case, you must clear the failure codes.
      [IG1] Smart key computer assembly (collation ECM) Supply/stop Turn the ignition power (relay upstream alternator side) ON. If you forcibly drive this item, there may be failure codes registered for the engine, transmission, and the VDC unit. In that case, you must clear the failure codes.
      [ACC] Smart key computer assembly (collation ECM) Supply/stop Turn the ACC power ON.

      SSM screen: [Each System Check] →[Keyless access system] →[Collation ECM] →[Work Support] →[System Operation Check Mode]

      SSM ITEM DESCRIPTION

      Item Name Part to be forcibly driven Drive Remarks
      [Power/Engine SW Light] Push button start switch illumination Output/stop Push button start switch illumination OFF (15 seconds or more since ON→OFF) and in ACC ON, IG ON, or the engine is turning.