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Home >> Mitsubishi >> 2019 >> Eclipse Cross ES, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Active Stability Control System (ASC) - (With Diagnostics) >> Diagnosis <ASC-Ecu> >> Data List Reference Table
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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 0.7km/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 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
  • While ASC-ECU is disabled by the diagnostic function, the scan tool (M.U.T.-IIISE) displayed data is different from the actual measurement.

(1) Vehicles with ACC/FCM.

(2) Vehicles with electric parking brake.
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