Data List Reference Table
The following items of ECU input data can be read using scan tool (M.U.T.-III).
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 (M.U.T.-III) display almost agree with each other. (During stop: approximately 0.7km/h) |
| 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) | -0.04 to 0.04 G |
| Running | -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 | ||
| 45 | Steering angle sensor 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 | Steering angle sensor fail | ||
| Steering angle sensor fail & No Comp | |||
| 65 | Engine Speed | When the accelerator pedal is depressed (engine started) | The tachometer display and the scan tool (M.U.T.-III) 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 | Allow | |
| 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 |
| 74 | Steering angle offset | The difference between the neutral position that was input to the ASC-ECU before the steering wheel sensor calibration and the neutral position after the calibration. | -10 to 10 deg |
| 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 (M.U.T.-III) 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 position that was input to the ASC-ECU before the G and yaw rate sensor calibration and the neutral position after the calibration. | -0.1 to 0.1 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) | 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 | A.S.C./TCL off switch (input) | The ASC OFF switch is pressed. | ON |
| The ASC OFF switch is not operated. | OFF | ||
| 138 | ESS request | ASC-ECU is demanding the ESS operation of ETACS-ECU. | ON |
| ASC-ECU is not demanding the ESS operation of ETACS-ECU. | OFF | ||
| 139(1) | Idle stop | The idling stop disabled | Not allowed |
| The idling stop enabled | Allow | ||
| 140 | A.S.C./TCL mode (S-AWC) | When the ASC is activated | ASC ON |
| When the ASC is deactivated by the ASC OFF switch. | ASC OFF | ||
| When the ASC fails | N/A | ||
| 141 | ACCS/FCM | Without ACC/FCM function | Not present |
| With ACC/FCM function | Present | ||
| 142(2) | ACCS control state (ACCS/FCM ECU) | Activate the ACC. | Displays ACC control status which is received from the ACC/FCM-ECU |
| OFF | |||
| Standby | |||
| Active | |||
| Accele. override | |||
| Temporary failu. | |||
| System failure | |||
| 143(2) | ACCS: Target acceleration (MAX) | Activate the ACC. | Displays the upper limit of ACC target acceleration/deceleration speed (m/s2 ) |
| 144(2) | ACCS: Target acceleration (MIN) | Activate the ACC. | Displays the lower limit of ACC target acceleration/deceleration speed (m/s2 ) |
| 145(2) | FCM: Target deceleration | Activate the FCM. | Displays FCC target deceleration speed (m/s2). |
| 146(2) | FCM: Brake prefill request | When the brake system pre-fill request signal is received from the ACC/FCM-ECU | ON |
| Other than above | OFF | ||
| 147(2) | FCM: Brake assist request | When the brake assist request signal is received from the ACC/FCM-ECU | ON |
| Other than above | OFF | ||
| 148(2) | FCM: Auto brake request | When the automatic brake request signal is received from the ACC/FCM-ECU | ON |
| Other than above | OFF | ||
| 149(2) | Vehicle control state (ENG ECU) | Operate the cruise control switch. | Displays the vehicle control status which is received from the engine control module |
| ALL OFF | |||
| Cruise ON | |||
| ASL ON | |||
| ACCS ON | |||
| 150(2) | ACCS control state (ENG ECU) | Activate the ACC. | Displays the ACC control status inside the engine control module which is received from the engine control module. |
| Standby | |||
| Active | |||
| 151(2) | ACCS fail state (ENG ECU) | Activate the ACC. | Displays the ACC-related failure status inside the engine control module which is received from the engine control module. |
| Normal | |||
| Fail | |||
| Fail with DTC | |||
| 152(2) | Stoplight switch state | The brake pedal is depressed. | ON |
| The brake pedal is released. | OFF | ||
| 153(2) | ACCS control state (ASC ECU) | Activate the ACC. | Displays the ACC control status inside the ASC-ECU |
| OFF | |||
| Standby | |||
| Active | |||
| Accele. override | |||
| Temporary failu. | |||
| System failure | |||
| 154(2) | ACCS: Target engine torque | Activate the ACC. | Displays the ACC target engine torque. (Nm) |
| 155(2) | ACCS: Target primary speed | Activate the ACC. | Displays the ACC target primary speed. (r/min) |
| 156(2) | Accelerator/Brake override state | The accelerator or the brake pedal is not depressed during the ACC control | Not active |
| The accelerator pedal is depressed during the ACC control | Accel override | ||
| The brake pedal is depressed during the ACC control | Brake override | ||
| 157(2) | Cruise control off signal | The ACC OFF signal is sent | ON |
| Other than above | OFF | ||
| 158(2) | ACCS fail state (ASC ECU) | Activate the ACC. | Displays the ACC-related failure status inside the ASC-ECU |
| Normal | |||
| Fail | |||
| Fail with DTC | |||
| 159(2) | ACCS/FCM: Auto brake active state | Activate the FCM. | Displays the automatic brake operation status inside the ASC-ECU |
| Not active | |||
| ACCS braking | |||
| FCM pre-braking | |||
| FCM braking | |||