Data List Reference Table
The following items of ECU input data can be read using scan tool (M.U.T.-IIISE).
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.-IIISE) display almost agree with each other. (During stop: approximately 0.7 km/h) |
| 02 | FR wheel speed sensor | ||
| 03 | RL wheel speed sensor | ||
| 04 | RR wheel speed sensor | ||
| 05 | Steering angle sensor (+: 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)> | |||
| 06 | Yaw rate sensor (+: left turn, -: right turn) | Vehicle stopped (level) | -3.6 to 3.6 deg/s |
| Running | -100 to 100 deg/s | ||
| 07 | Master cylinder pressure sensor (+: 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 | ||
| 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 | Engine Speed | When the accelerator pedal is depressed (engine started) | The tachometer display and the scan tool (M.U.T.-IIISE) display almost agree with each other. |
| 11 | Engine torque | Displays the engine torque. | |
| 12 | APS | Displays the accelerator pedal opening angle. | |
| 13 | Allow A.S.C. torque request | Not allowed/Allow | |
| 14 | Actual gear | When the selector lever is operated | Displays the selector lever position. |
| 15 | Target gear | ||
| 16 | Steering angle sensor 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 |
| 17 | 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 |
| 18 | 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 |
| 19 | Master cylinder pressure sensor 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 |
| 20 | 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 |
| 21 | IG switch | Ignition switch: ON | ON |
| 22 | Power supply voltage | System voltage (10 to 18 V ASC operable range) | |
| 23 | Steering angle sensor calibration state | When the steering wheel sensor neutral point is learned | Completed |
| When the steering wheel sensor neutral point is not learned | Not completed | ||
| When the steering wheel sensor is defective | SAS fail | ||
| SAS fail & Not completed | |||
| 24 | Vehicle speed | Perform a test run of the vehicle. | The speedometer display and the scan tool (M.U.T.-IIISE) display almost agree with each other. |
| 25 | A.S.C./TCL off switch | The ASC OFF switch is pressed. | ON |
| The ASC OFF switch is not operated. | OFF | ||
| 26 | Brake switch (input) | The brake pedal is depressed. | ON |
| The brake pedal is released. | OFF | ||
| 27 | Power supply voltage (input) | System voltage (10 to 18 V ASC operable range) | |
| 28 | IG switch (input) | Ignition switch: ON | ACC2/ACC/ON/Start |
| 29 | Parking brake switch | Apply the parking brake. | ON |
| Release the parking brake. | OFF | ||
| 30 | Driver's door ajar switch | Driver's door is closed. | Close |
| Driver's door is opened. | Open | ||
| 31(2) | EPB fail state | When the electric parking brake fail signal is not received from the electric parking brake ECU. | Normal |
| When the electric parking brake fail signal is received from the electric parking brake ECU. | Fail | ||
| 32 | Auto hold switch | Brake auto hold switch is ON. | ON |
| Brake auto hold switch is OFF. | OFF | ||
| 33 | Driver's seat belt | Driver's seat belt is fastened. | Fastened |
| Driver's seat belt is not fastened. | Not fastened | ||
| Driver's seat belt is failed. | Fail | ||
| 34 | A.S.C. dynamic brake fail | Emergency brake (ASC) is normal. | Normal |
| Emergency brake (ASC) fails. | Fail | ||
| 35 | Brake switch | The brake pedal is depressed. | ON |
| The brake pedal is released. | OFF | ||
| 37 | A.S.C./TCL mode | When the ASC is activated | A.S.C. ON |
| When the ASC is deactivated by the ASC OFF switch. | A.S.C. OFF | ||
| When the ASC fails | Not available | ||
| 38 | Brake pressure sensor | The brake pedal is depressed. | ON |
| The brake pedal is released. | OFF | ||
| 39 | Auto hold status | Brake auto hold function is set to OFF. | OFF |
| Brake auto hold function is set to standby. | Standby | ||
| Brake auto hold function fails. | Error | ||
| Brake auto hold function is activated. | Active | ||
| Brake auto hold function is activated and fails. | Active error | ||
| 40 | 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 | ||
| 41 | Emission test mode | Emission test mode: ON | ON |
| Emission test mode: OFF | OFF | ||
| 42(1) | ACC/FCM | Without ACC/FCM function | Not present |
| With ACC/FCM function | Present | ||
| 43(1) | ACC system state (ACC/FCM ECU) | Activate the ACC. | Displays the ACC control status inside the ACC/FCM-ECU |
| OFF | |||
| Standby | |||
| Active | |||
| Accel override | |||
| Temporary fail. | |||
| System fail | |||
| Auto canceled | |||
| 44(1) | ACC target acceleration (MAX) | Activate the ACC. | Displays the upper limit of ACC target acceleration speed (m/s2 ) |
| 45(1) | ACC target acceleration (MIN) | Activate the ACC. | Displays the lower limit of ACC target acceleration speed (m/s2 ) |
| 46(1) | FCM target deceleration (ACC/FCM ECU) | Activate the FCM. | Displays of FCM target deceleration speed (m/s2 ) |
| 47(1) | ACC fail state (ENG ECU) | Activate the ACC. | Displays the ACC-related failure status inside the ECM which is received from the ECM. |
| Normal | |||
| Fail without DTC | |||
| Fail with DTC | |||
| 48(1) | ACC system state (ENG ECU) | Activate the ACC. | Displays the ACC control status inside the ECM which is received from the ECM. |
| Standby | |||
| Active | |||
| 49(1) | Vehicle control state (ENG ECU) | Operate the cruise control switch. | Displays the vehicle control status which is received from the ECM |
| ALL OFF | |||
| Cruise ON | |||
| ASL ON | |||
| ACC ON | |||
| 50(1) | FCM auto brake request (ACC/FCM ECU) | Activate the FCM. | ON |
| OFF | |||
| 51(1) | FCM brake assist request (ACC/FCM ECU) | Activate the FCM. | ON |
| OFF | |||
| 52(1) | FCM brake prefill request (ACC/FCM ECU) | Activate the FCM. | ON |
| OFF | |||
| 53 | Stoplight switch state | The brake pedal is depressed. | ON |
| The brake pedal is released. | OFF | ||
| 54 | FCM standstill request (FCM/LDW/AHB ECU) | Activate the FCM. | ON |
| OFF | |||
| 55 | FCM auto brake request (FCM/LDW/AHB ECU) | Activate the FCM. | ON |
| OFF | |||
| 56 | FCM brake assist request (FCM/LDW/AHB ECU) | Activate the FCM. | ON |
| OFF | |||
| 57 | FCM brake prefill request (FCM/LDW/AHB ECU) | Activate the FCM. | ON |
| OFF | |||
| 58 | FCM target deceleration (FCM/LDW/AHB ECU) | Activate the FCM. | Displays of FCM target deceleration speed (m/s2 ) |
| 59(1) | ACC system state (A.S.C. ECU) | Activate the ACC. | Displays the ACC control status inside the ASC-ECU |
| OFF | |||
| Standby | |||
| Active | |||
| Accel override | |||
| Temporary fail. | |||
| System fail | |||
| 60(1) | ACC target engine torque | Activate the ACC. | Displays the ACC target engine torque. (Nm) |
| 61(1) | ACC target primary speed | Activate the ACC. | Displays the ACC target primary speed. (r/min) |
| 62(1) | Auto brake active state | Activate the FCM. | Displays the automatic brake operation status inside the ASC-ECU |
| Not active | |||
| ACC braking | |||
| FCM prebraking | |||
| FCM braking | |||
| 63(1) | ACC fail state (A.S.C. ECU) | Activate the ACC. | Displays the ACC-related failure status inside the ASC-ECU |
| Normal | |||
| Fail without DTC | |||
| Fail with DTC | |||
| 64(1) | Cruise control off signal | The ACC OFF signal is sent | ON |
| Other than above | OFF | ||
| 65(1) | Accel/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 | ||
| 66 | FCM ON/OFF switch | FCM and Ultrasonic misacceleration Mitigation System ON/OFF switch is ON. | ON |
| FCM and Ultrasonic misacceleration Mitigation System ON/OFF switch is OFF. | OFF | ||
| 67 | FCM fail state (A.S.C. ECU) | FCM function (FCM/LDW/AHB-ECU) is normal. | Normal |
| FCM function (FCM/LDW/AHB-ECU) fails. | Fail | ||
| 68 | FCM engine brake request (FCM/LDW/AHB ECU) | Activate the FCM. | ON |
| OFF | |||
| 69(1) | ACC hold state (ACC/FCM ECU) | Activate the ACC. | Displays the ACC hold status inside the ACC/FCM-ECU |
| OFF | |||
| Standstill | |||
| Hold | |||
| Hold (ACC ready) | |||
| 70(1) | FCM engine brake request (ACC/FCM ECU) | Activate the FCM. | ON |
| OFF | |||
| 71(1) | ACC hold state (A.S.C. ECU) | Activate the ACC. | Displays the ACC hold status inside the ASC-ECU |
| OFF | |||
| Standstill | |||
| Hold | |||
| Hold (ACC ready) | |||
| 72(1) | ACC standstill state (A.S.C. ECU) | Activate the ACC. | ON |
| OFF | |||
| State 2 | |||
| State 3 | |||
| 73 | FCM/LDW/AHB | Vehicles without FCM function. | Not present |
| Vehicles with FCM function. | Present | ||