Current Data Display & Save/Work Support

CAUTION: As the steering lock actuator assembly (Steering lock ECM) carries out data communication with the SSM3 via the CAN communication function of the smart key computer assembly (Collation ECM), it cannot perform normal monitoring of there is a CAN communication or smart key computer assembly (Collation ECM) malfunction.

Data monitor
NOTE: The SSM3 can be used to read the input to the steering lock actuator assembly (Steering lock ECM), communication, and operating conditions.
1. Use the SSM3 to judge whether a component is working or not, and to narrow down the location of trouble with the data monitor.

SSM3 screen: [Each System Check] →[Keyless Access System] →[Power Supply ECM]→[Current Data Display & Save]

ITEM DESCRIPTION

Item name

Description/display range

Normal value

Remarks

[Shift P signal] ⁽¹⁾

Shift position (P) state
Display range: ON/OFF

ON: In shift position P
OFF: Not in shift position P

Used for determining the presence of a shift switch (P) failure.

[Steering unlock SW]

Indicates the steering unlock sensor signal output from the steering lock actuator assembly (Steering lock ECM). Display range: ON/OFF

ON: Steering unlock
OFF: Steering lock

The steering will be locked when any door is opened (or closed) while the vehicle is set to IG OFF and the shifter is in the P position (Transmission A/T).
The steering will be unlocked when the electrical key transmitter sub-assembly (Electronic key) is inside the vehicle and the vehicle is set to ACC ON or IG ON.
The engine cannot be started when the steering unlock signal is OFF.

[Steering lock unlock wait time-out]

Steering lock unlock malfunction
Display range: Yes/No

Yes: Unlocking malfunction (For example: When the lock bar is stuck, etc.)
No: Lock/unlock functioning properly

If the engine cannot be started due to a malfunction in the steering lock/unlock, "Yes" is displayed.

⁽¹⁾	Transmission A/T

SSM3 screen: [Each System Check] →[Keyless Access System] →[Collation ECM] →[Current Data Display & Save]

ITEM DESCRIPTION

Item name	Description/display range	Normal value	Remarks
[Ignition]	Indicates the IG power supply input state of the smart key computer 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]	Indicates the state of the engine immobilizer system determined by the smart key computer assembly (Collation ECM). Display range: Unset/Set	Unset: Engine immobilizer unset (engine start possible) state. Set: Engine immobilizer set (engine start prohibited) state.	The engine cannot be started when this item displays "Set". NOTE: The security indicator light blink when this item is "Set". The security indicator light is linked to the immobilizer set and unset state. This is unrelated to the steering lock/unlock states.
[Sleep possible status]	Indicates the steering lock ECM sleep permission state. Display range: Yes/No	Yes: Sleep permitted No: Sleep not permitted	-
[Wake-up transmission status]	Indicates the steering lock ECM wakeup signal communication state. Display range: Yes/No	Yes: Wake-up signal transmission No: No wake-up signal transmission	-
[Lock confirmation]	Indicates the lock confirmation state of the steering lock actuator assembly (Steering lock ECM). Display range: Set/Unset	Set: Lock confirmed Unset: Lock not confirmed	The steering is not locked when "Unset" is displayed.
[Unlock confirmation]	Indicates the unlock confirmation state of the steering lock actuator assembly (Steering lock ECM). Display range: Set/Unset	Set: Unlock confirmed Unset: Unlock not confirmed	The steering is not unlocked when "Unset" is displayed. (The engine cannot be started.)
[Motor operation prohibition voltage evaluation]	Indicates the state of the engine start permission signal sent to the smart key computer assembly (Collation ECM) after judgment by the steering actuator assembly (Steering lock ECM). Display range: OK/NG	OK: Engine start permitted NG: Engine start prohibited	When this item displays "OK", the smart key computer assembly (Collation ECM) receives an unlock confirmation signal from the steering lock actuator assembly (Steering lock ECM), sending the engine start permission signal. The engine cannot be started when this item displays "NG".
[Sensor abnormal (past)]	Indicates any history of steering lock actuator assembly (Steering lock ECM) internal position sensor malfunction. Display range: abnormal/normal	Abnormal: There is a history of the steering lock actuator assembly (Steering lock ECM) internal lock/unlock sensors both being in an ON state at the same time (usually they are not both ON). OK: There is no history of steering lock actuator assembly (Steering lock ECM) internal lock/unlock sensor malfunction.	When this item displays "NG", there may be a steering lock actuator assembly internal position sensor malfunction, or mechanical fault.
[Motor power supply short-circuit abnormal (past)]	Indicates the malfunction (short circuit) history for the signal sent to the steering lock actuator assembly (Steering lock ECM) signal from the smart key computer assembly (Collation ECM). Display range: abnormal/normal	Abnormal: Motor power supply short circuit history present OK: No motor power supply short circuit history	This item indicates the history of when there is a circuit malfunction between the smart key computer assembly (Collation ECM) and the steering lock actuator assembly (Steering lock ECM).
[Motor driver short-circuit abnormal (past)]	Indicates any history of steering lock actuator assembly (Steering lock ECM) internal motor drive circuit malfunctions (short circuit). (Diagnostic code B2781 is output) Display range: abnormal/normal	Abnormal: Motor driver short circuit history present OK: No motor driver short circuit history present	This item identifies any malfunction in the steering lock actuator assembly (Steering lock ECM) internal steering lock motor drive circuit.
[Steering lock lock/unlock command reception history]	Indicates the unlock request signal reception history. Display range: Yes/No	Yes: Unlock request signal reception history present No: No unlock request signal reception history	-
[Lock bar engagement abnormal]	Indicates the history of not being able to correctly unlock the steering after the steering lock bar is moved to the unlock position for a certain period of time. Display range: NG/OK	NG(Past): History of the lock bar being stuck OK: No history of the lock bar being stuck	-
[Push start abnormal (past)]	Indicates any history of a push button start malfunction caused by the steering lock actuator assembly (Steering lock ECM). Display range: abnormal/normal	Abnormal: Push button start malfunction history present OK: No push button start malfunction history	-
[EEPROM access abnormal]	Indicates the steering lock ECM state. Display range: abnormal/normal	Abnormal: Steering lock ECM malfunction OK: Steering lock ECM normal	-
[Engine start permission request reception status]	Indicates the reception state of the engine start permission signal sent to the smart key computer assembly (Collation ECM) after judgment by the steering lock actuator assembly (Steering lock ECM). Display range: NG/OK	NG: When it is not yet received OK: When it has already been received	When "OK" is displayed, the smart key computer assembly (Collation ECM) receives an unlock confirmation signal from the steering lock actuator assembly (Steering lock ECM), allowing engine fuel injection and ignition. The engine cannot be started when this item displays "NG".
[L Code Check]	Indicates the collation results between the smart key computer assembly (Collation ECM) and the steering lock actuator assembly (Steering lock ECM). Display range: abnormal/normal	Abnormal: Collation results abnormal OK: Collation results normal	The smart key computer assembly (Collation ECM) and the steering lock actuator assembly (Steering lock ECM) are unable to perform L code registration. Steering lock cannot be performed. Steering unlock cannot be performed. (The engine cannot be started.)
[Steering lock lock/unlock command reception history]	Indicates the unlock request signal reception state. Display range: NG/OK (10 s)	NG: IG ON, ACC ON or engine start operation not performed OK: Within 10 seconds after IG ON, ACC ON or engine start operation	The engine cannot be started when the unlock request signal cannot be received. If "OK" is not displayed even if the steering unlock conditions are satisfied, there may be a smart key computer assembly (Collation ECM) malfunction.
[Steering lock lock request reception status]	Indicates the lock request signal reception state. Display range: OK (10s)/NG	OK: When a lock request is received within 10 seconds after any one of the doors is opened while the shifter is in the P position (Transmission A/T) and the vehicle ignition is turned to IG OFF. NG: Other than above	If "OK" is not displayed even if the steering lock conditions are satisfied, there may be a smart key computer assembly (Collation ECM) malfunction.
[L Code Check(Past)]	Indicates the collation results history from between the smart key computer assembly (Collation ECM) and the steering lock actuator assembly (Steering lock ECM). Display range: abnormal/normal	Abnormal: There is a history of a abnormal collation results OK: There is no history of a abnormal collation results	-
[Number of Diagnostic Code(s):]	Indicates the number of diagnostic codes. Display range: 0 - 255 items	-	-

When the following conditions are satisfied, the steering lock will be unlocked.
1. The vehicle is set to ACC ON or IGN ON.
  1. When the push button start switch is operated and the vehicle is set to ACC ON or IG ON, the electrical key transmitter sub-assembly (Electronic key) and the smart key computer assembly (Collation ECM) are matched and the steering will be unlocked.
  2. The electrical key transmitter sub-assembly (Electronic key) will be checked if any of the following conditions are met.
    - The brake pedal (Transmission A/T) or the clutch pedal (Transmission M/T) are depressed and the engine is started.
    - Within 30 seconds after a door has been opened and closed.
    - The push button start switch is pressed.
      NOTE:
      
      Key collation: When there is a match between the code transmitted by the electrical key transmitter sub-assembly (Electronic key) and the code calculated by the smart key computer assembly (Collation ECM).
      
      A genuine collation ECM is confirmed: Checking of the L code issued when the engine is started or the push button start switch is pressed.
      
      The steering lock actuator assembly (Steering lock ECM) uses L codes to check whether the smart key computer assembly (Collation ECM) is a genuine ECM.
If the following conditions are satisfied, the steering will be locked when the smart key computer assembly (Collation ECM) has been confirmed to be a genuine ECM.
- The vehicle is stopped
- No vehicle speed signal abnormal.
- The vehicle is set to IG OFF and ACC OFF.
- The shifter is in the P position (Transmission A/T).
- A door changes from closed →open, or a door is locked (smart door lock, wireless door lock).
NOTE: The following example, indicates the data monitor activity when the vehicle changes from ACC ON →IG ON →IG OFF while the shifter is in the P position (Transmission A/T) and the brake pedal (Transmission A/T) or the clutch pedal (Transmission M/T) are not depressed.

Fig 1: Data Monitor Activity Pattern
Courtesy of SUBARU OF AMERICA, INC.

NOTE: Enter the vehicle while carrying the electrical key transmitter sub-assembly (Electronic key), set the ignition to IG OFF and put the shifter in the P position (Transmission A/T), and perform the following operations to check each data monitor activity.

*1: Without depressing the brake pedal (Transmission A/T) or the clutch pedal (Transmission M/T), press the push button start switch and confirm that it changes over to ACC ON.

*2: Without depressing the brake pedal (Transmission A/T) or the clutch pedal (Transmission M/T), press the push button start switch and confirm that it changes over to IG ON.

*3: Press the push button start switch and confirm that it changes over to IG OFF.

*4: Open the door. (Steering lock complete)

SSM3 screen: [Each System Check] →[Integ. unit mode] →[Current Data Display & Save]

ITEM DESCRIPTION

Item name	Description/display range	Normal value	Remarks
[D Door Courtesy SW]	State of the driver's door courtesy light switch. Display range: Closed/Open	Closed: Driver's door is closed Open: Driver's door is opened	-