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Home >> Subaru >> 2017 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Engine Immobilizer System (W/Entry Start) >> Engine immobilizer system (with entry & start system) >> Data monitor/active test

Data monitor/active test

  1. [Data monitor]
    CAUTION: In the following table, the value listed in the normal condition is a reference value. Do not depend on reference value only when judging if the part is faulty.
    NOTE: By using the SSM4 and reading [Data monitor], 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. Diagnostic time can be saved by reading the [Data monitor] information at the initial stage of the troubleshooting.
    1. Connect the SSM4 to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn on the SSM4.
    4. Enter the following menus: [Keyless Access(Collation ECM)] →[Data monitor]
    5. Based on the contents of the SSM4 display, read the [Data monitor].
      ENTRY AND START DESCRIPTION

      Item Name Description/display range Normal value Remarks
      [Ignition] Engine switch condition/OFF or ON OFF: IG OFF
      ON: Engine switch is ON (IG)      		 Using this [Data monitor] item, identify the cause when all entry & start system/wireless functions do not operate.
      [IG = ON, immobilizer set condition established] Engine immobilizer system condition when the power supply mode is ON (IG)/Unset or Set Unset: It is not set when the engine immobilizer system is engine switch ON (IG). Or the engine immobilizer system releases the setting for 40 times after setting.
      Set: When the engine immobilizer system is set (driver's door opens/closes with engine switch ON (IG).      		 -
      [Immobilizer] The engine immobilizer system condition is judged by the collation ECM (smart key ECM ASSY)/Unset or Set Set: Engine immobilizer set (engine start prohibited) (engine switch OFF) Unset: Engine immobilizer unset (engine start permitted) [engine switch ON (ACC) or (IG)] When [Setup] is displayed, the engine start function is prohibited.
      [Master Key] Whether the master key ID code matches with the ID code registered in the collation ECM (smart key ECM ASSY)/Does not match, or match Does not match: The master key ID code does not match with the ID code registered in the collation ECM (smart key ECM ASSY). Match: The master key ID code matches with the ID code registered in the collation ECM (smart key ECM ASSY).
      • Always [Match] is displayed.
      • Without the diagnosis function
      [Sub Key] Whether the sub key ID code matches with the ID code registered in the collation ECM (smart key ECM ASSY)/Does not match, or match Match: The sub key ID code matches with the ID code registered in the collation ECM (smart key ECM ASSY). Does not match: The sub key ID code does not match with the ID code registered in the collation ECM (smart key ECM ASSY).
      • Always [Match] is displayed.
      • Without the diagnosis function
      [BCC Malfunction] Transponder chip BCC signal condition * 1/OK or NG OK: BCC signal normal NG: BCC signal fault (fault in the code calculation function for key/collation ECM (smart key ECM ASSY)) The following may be the cause:
      • Communication error caused by the noise entering from outside (LF).
      • Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key computer ASSY)
      [Abnormal Status] Transponder chip condition signal * 1/OK or NG OK: Transponder chip condition signal normal
      NG: Transponder chip condition signal fault (fault in the code calculation function for key/collation ECM (smart key ECM ASSY))      		 The following may be the cause:
      • Communication error caused by the noise entering from outside (LF).
      • Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key computer ASSY)
      [Incorrect Encryption] Code condition between the transponder chip and collation ECM (smart key ECM ASSY) * 1/OK or NG OK: Code of the transponder chip and collation ECM (smart key ECM ASSY) matches.
      NG: Code of the transponder chip and collation ECM (smart key ECM ASSY) does not match.      		 The following may be the cause:
      • The electrical key transmitter SUB-ASSY of another vehicle is used.
      • Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key computer ASSY)
      [Incorrect Serial No.] Vehicle serial No. * 1/OK or NG OK: Signal from the transponder chip and the vehicle serial No. outputs to the collation ECM (smart key ECM ASSY) matches.
      NG: Signal from the transponder chip and the vehicle serial No. outputs to the collation ECM (smart key ECM ASSY) does not match.      		 The following may be the cause:
      • The electrical key transmitter SUB-ASSY of another vehicle is used.
      • Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key computer ASSY)
      [Frame error] The data condition sent from the electrical key transmitter SUB-ASSY/OK or NG OK: No problems in the data sent from the electrical key transmitter SUB-ASSY
      NG: Problems in the data sent from the electrical key transmitter SUB-ASSY
      • Always [OK] is displayed.
      • Without the diagnosis function
      [Sleep possible status] ID code box (immobilizer code ECM) is in sleep mode condition/No or Yes No: ID code box (immobilizer code ECM) does not enter to the sleep mode.
      Yes: ID code box (immobilizer code ECM) enters to the sleep mode.      		 -
      [Wake-up transmission status] ID code box (immobilizer code ECM) condition *3/No or Yes No: ID code box (immobilizer code ECM) does not send the wake-up signal.
      Yes: ID code box (immobilizer code ECM) sends the wake-up signal.      		 -
      [EFI/EGI code reception status] The request for engine start permission sent from the collation ECM (smart key ECM ASSY) to the ID code box (immobilizer code ECM)* 3/OK or NG OK: The engine start permission request signal that the ID code box (immobilizer code ECM)*9, or collation ECM (smart key ECM ASSY)*10 receives from the collation ECM (smart key ECM ASSY)
      NG: The ID code box (immobilizer code ECM)*9, or collation ECM (smart key ECM ASSY)*10 does not receive the engine start permission request signal.      		 If [OK] is not displayed, the ECM cannot release the immobilizer setting.
      [S Code Check] *9 S code check result * 4/OK or NG OK: S code check result is normal.
      NG: S code check result is abnormal.      		 The following may be the cause:
      • The registration setting is not performed for the collation ECM (smart key ECM ASSY) or ID code box (immobilizer code ECM).
      • There are defects in the collation ECM (smart key ECM ASSY) or ID code box (immobilizer code ECM).
      [L Code Check] L code check result * 5/OK or NG OK: L code check result is normal.
      NG: L code check result is abnormal.      		 The following may be the cause:
      • The registration setting is not performed for the collation ECM (smart key ECM ASSY) or lock actuator ASSY (steering lock ECM).
      • There are defects in the collation ECM (smart key ECM ASSY) or steering lock actuator (steering lock ECM).
      [Steering lock unlock request reception status] Steering unlock command condition from the collation ECM (smart key ECM ASSY) * 6/OK or NG OK: The collation ECM (smart key ECM ASSY) sends the steering unlock command (within 10 seconds after engine switch is ON (ACC) or ON (IG), or within 10 seconds after engine starting operation)
      NG: The collation ECM (smart key ECM ASSY) does not send the steering unlock command (engine switch does not turn ON (ACC) or ON (IG), or engine starting operation cannot be performed)      		 Even when the steering lock is unlocked, if the [OK] is not displayed, the collation ECM (smart key ECM ASSY) may be defective.
      [Steering lock lock request reception status] Steering lock command condition from the collation ECM (smart key ECM ASSY) * 7/OK or NG OK: The collation ECM (smart key ECM ASSY) sends the steering unlock command (within 10 seconds after the door opens/closes when the engine switch is OFF with the shift lever in P* 11).
      NG: The collation ECM (smart key ECM ASSY) does not send the steering unlock command (the door does not open/close when the engine switch is OFF with the shift lever in P* 11)      		 Even when the steering lock condition is met, if the [OK] is not displayed, the collation ECM (smart key ECM ASSY) may be defective.
      [S Code Check(Past)] S code check result (past)/OK or NG (past) OK: Confirmation operation finished (past).
      NG (past): Confirmation operation has not finished (past).      		 -
      [L Code Check(Past)] L code check result (past)/OK or NG (past) OK: Confirmation operation finished (past).
      NG (past): Confirmation operation has not finished (past).      		 -
      [Engine Start Request] Recognition information that is sent to the ID code box (immobilizer code ECM) from ECM, when the ECM receives the engine start permission signal from the ID code box (immobilizer code ECM)*8./OK or NG OK: The ID code box (immobilizer code ECM)*9, or collation ECM (smart key ECM ASSY)*10 receives the signal sent from ECM in order to release the engine immobilizer setting. NG: The ID code box (immobilizer code ECM)*9, or collation ECM (smart key ECM ASSY)*10 does not receive the signal sent from ECM in order to release the engine immobilizer setting. -
      [EFI/EGI Communication] Communication status to release the immobilizer setting between the collation ECM (smart key ECM ASSY) and ECM/NG or OK NG: Communication to release the immobilizer setting between the collation ECM (smart key ECM ASSY) and ECM does not start.
      OK: Communication to release the immobilizer setting between the collation ECM (smart key ECM ASSY) and ECM starts.      		 Even when the condition to release the immobilizer setting is met, if the [NG] is displayed in the items and [OK] is displayed in the items in the engine start request, ECM may be defective. If the engine cannot be started, use this [Data monitor] while the troubleshooting is performed.
      NOTE:
      • *1: This indicates that there is a problem in the communication type between the electrical key transmitter SUB-ASSY and the collation ECM (smart key ECM ASSY). Possible fault causes include the external radio waves, or the faulty electrical key transmitter SUB-ASSY, or collation ECM (smart key ECM ASSY), use of other vehicle electrical key transmitter SUB-ASSY.
      • *2: This indicates that the wake-up signal communication is possible. ([Yes] indicates that the LIN communication signal is sent to start the confirmation operation.) If the steering lock motor operates normally and IGE ON signal is received (steering lock work request), or the communication occurs between the ID code box (immobilizer code ECM) *9, or collation ECM (smart key ECM ASSY)*10 and ECM, the displayed item is changed to [Yes].
      • *3: This indicates that the engine start permission request signal (EGST) output sent from ECM (smart key ECM ASSY) is received by the ID code box (immobilizer code ECM) *9 or the collation ECM (smart key ECM ASSY)*10.
      • *4: This indicates the collation results of the collation code for the collation ECM (smart key ECM ASSY) and ID code box (immobilizer code ECM) collation code.
      • *5: This indicates the collation results of the collation code for the steering lock actuator ASSY (steering lock ECM) and the ID code box (immobilizer code ECM) *9 or collation ECM (smart key ECM ASSY)*10.
        • When the steering lock actuator ASSY (steering lock ECM) receives the unlock request from the collation ECM (smart key ECM ASSY), the confirmation operation for ID code box (immobilizer code ECM) L code is performed. When the L code is matched, the steering lock actuator ASSY (steering lock ECM) unlocks the steering. But when the S code check result is not matched, the steering lock does not unlock.
      • *6: The collation ECM (smart key ECM ASSY) outputs the steering lock/unlock request for 10 seconds after the engine switch is ON (ACC) or ON (IG) or the engine start operation has been performed.
      • *7: The collation ECM (smart key ECM ASSY) outputs the steering lock request for 10 seconds after the engine switch is OFF, or after the door is opened with the shift lever positioned in P*11.
      • *8: This indicates that the ID code box (immobilizer code ECM)*9, or collation ECM (smart key ECM ASSY)*10 receives the confirmation information from the ECM. The display changes to [OK] if the ECM can send the information.
        • *9: With ID code box
        • *10: Without ID code box
        • *11: With automatic transmission
      1. Refer to the items in following [Data monitor] for the actual vehicle data.
      Fig 1: Engine Immobilizer System (With Entry And Start System) Illumination Pattern
      G11261539Courtesy of SUBARU OF AMERICA, INC.
      NOTE: With the IG OFF and the shift lever in P*6, perform the following operation to confirm the power supply mode.
      *1: Without depressing the brake pedal*6 or clutch pedal*7, push the engine switch to confirm the power supply mode is turned ON (ACC).
      *2: Without depressing the brake pedal*6 or clutch pedal*7, push the engine switch to confirm the power supply mode is turned ON (IG).
      *3: Depress the brake pedal*6 or clutch pedal*7 (stop light switch*6 or clutch start switch*7 is turned ON).
      *4: Push the engine switch to confirm the power supply mode turns to ON.
      *5: Open the door (the steering lock operation starts when the door opens).
      *6: With automatic transmission
      *7: With manual transmission
  2. [Active Test]
    NOTE: By performing an [Active Test] with SSM4, you can operate relays, VSV, actuators and other devices without removing any parts. This type of non-intrusive function inspection is very useful because the intermittent operation is possible without interference with parts or wiring. By performing an [Active Test] at an initial phase of troubleshooting, you can save time for diagnosis. [Data monitor] information can be displayed during [Active Test].
    1. Connect the SSM4 to the DLC3.
    2. Turn IG SW to ON.
    3. Turn on the SSM4.
    4. Input the following menus: [Body Control] →[Active Test]
    5. Based on the SSM4 display contents, perform an [Active Test].
      MAIN BODY DESCRIPTION

      Item Name Description/display range Normal value Remarks
      [Security Indicator] Security indicator light ON/OFF -
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