LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2023 >> Legacy Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Auto Start Stop System (Diagnostics) >> Data Monitor >> List
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data Monitor: List

Item Content and unit of measurement Reference value
At idling Auto Start Stop operation condition (Idling → Auto Start Stop) Auto Start Stop restart condition s (Auto Start Stop → Restart) Condition for cancel (During Auto Start Stop → Engine stall)
Trip Count Timestamp information_Trip counter [Time] - - - -
Count Timestamp information_original count identification information Common - - -
Time Count Timestamp information_time counter [ms] - - - -
Ignition Switch (Auto Start Stop) Ignition switch signal ON ON - -
Starter Switch Starter switch signal OFF - - -
Stop Light Switch (Auto Start Stop) Stop light switch signal OFF ON OFF -
Auto Start Stop OFF Switch Auto Start Stop cancel switch signal OFF - ON -
System Voltage (Auto Start Stop) Voltage of main power supply [V] 14.4 12 - 15 Less than predetermined value -
Audio Supply Voltage Audio power supply voltage [V] 14.2 12 - 15 Less than predetermined value -
Brake Booster Relative Pressure Brake booster vacuum pressure [kPa](1)(2)(5) -70 Less than -36 -36 or more -
Engine Speed (Auto Start Stop) Engine speed [rpm](1)(2) 670 600 - 1600 - -
Electric oil pump diagnosis duty cycle Electric oil pump diagnosis duty ratio [%] 30 26 - 34 - -
DC/DC Converter Voltage Boost Request DC/DC converter boost command signal OFF - - -
Electric Fluid Pump Relay (Auto Start Stop) Electric oil pump relay signal ON ON - -
Electric fluid pump indication duty (Auto Start Stop) Electric oil pump control duty ratio [%] 10 - - -
Vehicle Speed Vehicle speed [km/h](1) 0 0 - -
DC/DC Converter 1 Status DC/DC converter 1 operation condition Standby - - -
Electric oil pump status Electric oil pump operation condition Standby Standby - -
DC/DC Converter 2 Status DC/DC converter 2 operation condition Standby - - -
DC/DC Converter 1 Boost Signal Reception DC/DC converter 1 boost signal reception status Not yet received - - -
DC/DC Converter 2 Boost Signal Reception DC/DC converter 2 boost signal reception status Not yet received - - -
Battery Terminal Voltage Battery power supply voltage [V] 14.4 12 - 15 Less than predetermined value -
Battery Charge/Discharge Current Battery charge/discharge current [A] 5 Predetermined value or more - -
Estimated Battery Temperature Estimated electrolyte temperature [°C] 30 0 - 70 Other than 0 - 70 -
Battery Average Inner Resistance Battery average internal resistance [mohm] 5.7 - - -
Battery Inner Resistance in cranking Battery internal resistance at cranking [mohm] 4.4 - - -
Engine failure CAN received data (ECM) Engine failure Normal Normal (6) Abnormal -
Idle Switch (Accel) CAN received data (ECM) Idling SW (accelerator)(1) ON ON OFF -
Coolant Temp. CAN received data (ECM) Water temperature [°C] 90 - - -
Atmosphere Pressure CAN received data (ECM) Atmospheric pressure [kPa](2) 102 72.0 or more Less than 67.0 -
ECM Idle Stop Prohibition CAN received data (ECM) Auto Start Stop prohibition ON ON OFF -
ECM Charging Lamp Lighting Request CAN received data (ECM) Charging light illumination request No request No request With Request -
Accel. ON/OFF Status for Auto Vehicle Hold CAN received data (ECM) Idling SW (accelerator) for EPB OFF OFF ON -
Shift position information Shift position information D Range Signal D Range Signal R Range Signal -
Emphasized idle stop request Auto Start Stop prohibition ON ON OFF -
Cooperative control with EyeSight EyeSight coordinate control status Not Operate - - -
EyeSight system failure EyeSight system failure Normal - - -
EPB Idle stop prohibition Electronic parking brake Auto Start Stop prohibition (VDC) ON ON OFF -
Steering Angle Sensor (Auto Start Stop) CAN received data (VDC) Steering angle [deg](1)(2) 5 -45 - 45 Other than -60 - 60 -
Forward and Rearward G CAN received data (VDC) Longitudinal G [m/s^2](1)(2) 0.1 -0.8 - 0.8 - -
Brake fluid pressure CAN received data (VDC) Brake fluid pressure [MPa](1)(2) 0.65 1.0 or more(4) Less than 0.7 (4)> -
Brake hold operation CAN received data (VDC) Brake hold operation Not during control - - -
Brake hold prohibition CAN received data (VDC) Brake hold prohibition ON ON OFF -
FR Brake Wheel Pressure CAN received data (VDC) FR wheel cylinder pressure [MPa](2) 0.65 1.1 or more Less than 1.0 -
FL Brake Wheel Pressure CAN received data (VDC) FL wheel cylinder pressure [MPa](2) 0.65 1.1 or more Less than 1.0 -
A/C Idle Stop Permission CAN received data (ACN) Auto Start Stop operation permission ON ON OFF -
A/C System Failure CAN received data (ACN) ACN failure Normal - - -
AVH Operation CAN received data (VDC) AVH activation Not established - - -
AVH Brake Intensify Press CAN received data (VDC) AVH brake pressure intensification Not established Not established - Established
AVH SW CAN received data (VDC) AVH switch OFF - - -
VDC Idle Stop Prohibition CAN received data (VDC) Auto Start Stop prohibition ON ON OFF -
Remote Control Engine Starter Start Request CAN received data (BIU) Remote start request No request - - -
EPS idle stop prohibition CAN received data (EPS) Auto Start Stop prohibition(1) ON ON OFF -
Rear Defogger CAN received data (BIU) Rear defogger OFF OFF ON -
Door SW (D Seat Side) CAN received data (BIU) Door SW (driver's seat) Close Close Open -
Hood SW (Hood Close Status) CAN received data (BIU) Hood SW (closed side) ON ON - OFF
Hood SW (Hood Open Status) CAN received data (BIU) Hood SW (open side) OFF OFF - ON
Seat Belt Buckle Switch (D Seat Side) CAN received data (MET) Seat belt SW (driver's seat) ON ON OFF -
Auto Start Stop operation permission evaluation Judgment of Auto Start Stop operation permission ON ON - OFF
Key start completion evaluation Judgment of key start completion Completed Completed - -
Auto Start Stop fault evaluation Judgment of Auto Start Stop malfunction Normal Normal Abnormal -
Engine started evaluation Judgment of engine start Started Started - -
Under Auto Start Stop control Judgment of Auto Start Stop control status Other than under control - - -
Idle stop request Auto Start Stop request No request - - -
Running experience completion evaluation Judgment of running experience completion at a speed of 5 km/h (3 MPH) or above after starting engine(3) Not Completed Completed - -
Idle stop evaluation Judgment of Auto Start Stop Other than idle stopped - - -
Idle stop prohibition evaluation Judgment of Auto Start Stop prohibition ON ON OFF -
Normal restart request evaluation Judgment of normal restart request No request No request With Request -
Automatic restart request evaluation Judgment of automatic restart request No request No request With Request -
Turn signal evaluation Judgment of turn signal OFF OFF (when customizing is valid) ON (when customizing is valid) -
Cancel status Cancel condition ON ON Cancel -
Hood open evaluation Judgment of hood open Close Close - Open
Complete combustion evaluation Judgment of complete combustion Established Established - -
Engine stall evaluation Judgment of engine stall Not established Not established - -
Start Count Number of times for starting [Time] - Less than 280000 - -
DC/DC Converter 2 Setting Sub power supply 2 installation judgment ON - - -
Vehicle speed restart request evaluation Judgment of vehicle speed restart request No request No request With Request -
Brake vacuum restart request evaluation Judgment of brake vacuum pressure restart request(1) No request No request With Request -
Battery protection restart request evaluation Judgment of battery protection restart request No request No request With Request -
Air conditioning restart request evaluation Judgment of air conditioner restart request No request No request With Request -
Electric accessories restart request evaluation Judgment of electrical components restart request No request No request With Request -
Restart request judgment while stopped Judgment of restart request while the vehicle is stopped No request No request With Request -
EPS restart request judgment Judgment of EPS restart request(1) No request No request With Request -
EPB restart request judgment Judgment of electronic parking brake restart request No request No request With Request -
Low water temperature stop prohibition judgment Judgment of stop prohibition with low water temperature ON ON OFF -
Battery high temperature prohibition judgment Judgment of prohibition with high battery temperature ON ON OFF -
Battery low temperature prohibition judgment Judgment of prohibition with low battery temperature ON ON OFF -
Inclination prohibition judgment Judgment of inclination prohibition(1) ON ON OFF -
Steering angle prohibition judgment Judgment of steering angle prohibition(1) ON ON OFF -
Engine rotation prohibition judgment Judgment of engine rotation prohibition(1) ON ON OFF -
Battery current prohibition judgment Judgment of battery current prohibition(1) ON ON OFF -
Voltage drop prohibition evaluation at the time of start Judgment of prohibition with battery voltage reduction at engine start ON ON OFF -
Air-conditioning prohibition evaluation Judgment of air conditioner prohibition ON ON OFF -
DC/DC Converter Temperature Prohibition Evaluation DC/DC converter prohibition judgment ON ON OFF -
Prohibition judgment by the atmospheric pressure condition Judgment of prohibition with atmospheric pressure ON ON OFF -
Restart Request CAN received data (ECM) Restart request [%] 0 - - -
ECM Restart Request Signal State CAN received data (ECM) Restart request signal status OFF - - -
NOTE:
  • For detailed operation procedures, refer to "Help" of application.
  • A list of the support data is shown in the following table.
  • (1) This item will be excluded from the Auto Start Stop conditions while driving.
  • (2) This item is in the setting value that includes hysteresis. Therefore, it may be out of the conditions depending on the situation.
  • (3) When [Idle stop prohibition evaluation] is [OFF], [Running experience completion evaluation] is always [Not Completed].
  • (4) Changes by gradient. (Value is obtained when on a level ground)
  • (5) The vehicle equipped with the electric brake booster will be excluded from the Auto Start Stop conditions.
  • (6) Even if [Engine failure] is [Abnormal], Auto Start Stop may operate for diagnosis
    .
scientia non olet · About LEMON Manuals