Data List Reference Table
The following items can be read by the scan tool from the ASC-ECU input data.
The following items of ECU input data can be read using scan tool.
- The system is normal.
Item No. Check item Check condition Normal condition 01 FL wheel speed sensor Perform a test run of the vehicle. The speedometer display and the scan tool display almost agree with each other. <During stop: approximately 0.4 mph (0.7km/h)> 02 FR wheel speed sensor 03 RL wheel speed sensor 04 RR wheel speed sensor 05 Power supply voltage Battery positive voltage (10 to 18 V ASC operatable range) 07 Brake switch (input) The brake pedal is depressed. ON The brake pedal is released. OFF 08 Lateral G sensor (+: left turn, -: right turn) Vehicle stopped (level) -0.11 to 0.11 G Running -1 to 1 G 09 G sensor (+: deceleration, -: acceleration) Vehicle stopped (level) -0.04 to 0.04 G Running FWD 0 G(1) (fixed value) AWD -1 to 1 G 10 Master cylinder pressure (+: pressure increase, -: pressure decrease) The brake pedal is depressed. Increases by the amount of the brake pedal depression. The brake pedal is released. -3 to 3 bar 11 Steering angle (+: left turn, -: right turn) Vehicle stopped (the steering wheel is in the neutral position) -6 to 6 deg Running Nearly the same as the steering wheel operation angle <-720 to 720 deg (ASC-ECU normal detection value)> Nearly the same as the steering wheel operation angle <-850 to 850 deg (Sensor normal value as a single unit)> 12 Yaw rate sensor (+: left turn, -: right turn) Vehicle stopped (level) -3.6 to 3.6 deg/s Running -100 to 100 deg/s 14 Brake switch The brake pedal is depressed. ON The brake pedal is released. OFF 15 Emission test mode Emission test mode: ON ON Emission test mode: OFF OFF 26 Brake fluid pressure switch Brake fluid level is lower than the "LOWER" marking. Low Brake fluid level is higher than the "LOWER" marking. Normal 28 ASC/TCL off switch When the ASC OFF switch is not operated (when the ASC control is available) ON When the ASC OFF switch is operated (pressed and held for 3 seconds or more) (when the ASC control is prohibited) OFF When the ASC OFF switch is operated (pressed and held for 15 seconds or more) (when the ASC OFF control is prohibited by fail-safe function)(2) ON 45 SAS OK flag When the steering wheel sensor neutral point is learned Comp When the steering wheel sensor neutral point is not learned Not Comp When the steering wheel sensor is defective SAS fail SAS fail & No Comp 65 Engine Speed When the accelerator pedal is depressed (engine started) The tachometer display and the scan tool display almost agree with each other. 66 Engine torque Displays the engine torque. 67 APS Displays the accelerator pedal opening angle. 68 Allow ESP torque request Permitted 70 Target gear When the selector lever is operated Displays the selector lever position. 71 Actual gear 72 Master cylinder pressure Offset The difference between the neutral position that was input to the ASC-ECU before the master cylinder pressure sensor calibration and the neutral position after the calibration. -8 to 8 bar 73 Lateral G sensor offset The difference between the neutral position that was input to the ASC-ECU before the G and yaw rate sensor calibration and the neutral position after the calibration. -0.15 to 0.15 G 86 Ignition switch Ignition switch: ON ON 87 Ignition switch (input) Ignition switch: ON ON 88 Vehicle speed Perform a test run of the vehicle. The speedometer display and the scan tool display almost agree with each other. 91 Brake pressure sensor The brake pedal is depressed. ON The brake pedal is released. OFF 96 G sensor offset The difference between the neutral positions before the calibration and after the calibration received in the ASC-ECU at G & yaw rate sensor calibration. -0.08 to 0.08 G 97 Yaw rate sensor offset The difference between the neutral position that was input to the ASC-ECU before the G and yaw rate sensor calibration and the neutral position after the calibration. -6.0 to 6.0 deg/s 105 Power supply voltage (input) Battery positive voltage (10 to 18 V ASC operatable range) 120 Parking brake switch (Input) When the parking brake lever is pulled up: ON When the parking brake lever is released: OFF 128 A.S.C./TCL off switch (input) The ASC OFF switch is pressed. ON The ASC OFF switch is not operated. OFF - System shutdown by ECU
While ASC-ECU is disabled by the diagnostic function, the scan tool displayed data is different from the actual measurement.