Data List Reference Table
The following items of ECU input data can be read using the scan tool.
- The system is normal.
Item No. Check item Check conditions Normal conditions 01 FL wheel speed sensor Perform a test run of the vehicle. The speedometer display and scan tool display almost agree with each other. < Vehicle stopped: Approximately 0.7 km/h (1.1 mph) > 02 FR wheel speed sensor 03 RL wheel speed sensor 04 RR wheel speed sensor 05 Power supply voltage System voltage (10 to 18 V ASC operable 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) -0.11 to 0.11 G Running -1 to 1 G 10 Master cylinder pressure 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 (Steering wheel in 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) > When removed from vehicle (Steering wheel sensor as a single unit) 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 ASC OFF switch not operated (ASC control is available) ON When ASC OFF switch is operated (pressed shortly) (ASC control is prohibited) OFF When ASC OFF switch is operated (pressed and held for 15 seconds or more) (ASC OFF control is prohibited by fail-safe.) ON 45 SAS OK flag When the learning is completed Comp When the learning is not completed Not Comp When the steering wheel sensor is faulty SAS fail SAS fail & Not 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 sensor Displays the accelerator pedal opening angle. 68 Allow ESP torque request Engine torque intervention is permitted Allow 70 Target gear The shift lever is operated Displays the shift lever position. 71 Actual gear 72 Master cylinder pressure Offset Master cylinder pressure sensor correction amount at the master cylinder pressure sensor calibration -8 to 8 bar 73 Lateral G sensor offset Lateral G sensor correction amount at G and yaw rate sensor calibration -0.15 to 0.15 G 86 Ignition switch Ignition switch is "ON" position ON 87 Ignition switch (input) Ignition switch is "ON" position ON Ignition switch is "START" position START 88 Vehicle speed Perform a test run of the vehicle. The speedometer display and scan tool display almost agree with each other. 91 Brake pressure sensor The brake pedal is depressed. Pressed The brake pedal is released. Not pressed 96 G sensor offset Longitudinal G sensor correction amount at G and yaw rate sensor calibration -0.15 to 0.15 G 97 Yaw rate sensor offset Yaw rate sensor correction amount at G and yaw rate sensor calibration -6.0 to 6.0 deg/s 105 Power supply voltage (input) System voltage (10 to 18 V ASC operable range) 120 Parking brake switch (input) When the parking brake lever is pulled up. ON When the parking brake lever is released. OFF 128 ASC/TCL off switch When the ASC OFF switch is pressed. ON When the ASC OFF switch is not pressed. OFF 129 FL wheel cylinder pressure The brake pedal is depressed. Increases by the amount of the brake pedal depression. The brake pedal is released. -3 to 3 bar 130 FR wheel cylinder pressure The brake pedal is depressed. Increases by the amount of the brake pedal depression. The brake pedal is released. -3 to 3 bar 131 RL wheel cylinder pressure The brake pedal is depressed. Increases by the amount of the brake pedal depression. The brake pedal is released. -3 to 3 bar 132 RR wheel cylinder pressure The brake pedal is depressed. Increases by the amount of the brake pedal depression. The brake pedal is released. -3 to 3 bar 133 FL wheel cylinder pres. offset Wheel cylinder fluid pressure sensor correction amount -8 to 8 bar 134 FR wheel cylinder pres. offset 135 RL wheel cylinder pres. offset 136 RR wheel cylinder pres. offset - System shutdown by ECU
While ASC-ECU is disabled by the diagnostic function, the scan tool displayed data is different from the actual measurement.