DIAGNOSTIC FUNCTION

FAIL-SAFE FUNCTIONS

The items other than below are the same as before.

When a malfunction is determined by the diagnostic function, ASC-ECU illuminates the brake warning lamp, brake warning display, ABS warning lamp, ABS warning display, ASC warning lamp, ASC warning display, and ASC OFF lamp. At the same time, ASC-ECU prohibits the EBD, ABS, ASC, TCL, brake assist, HSA, ESS and ACC/FCM.

note The brake warning lamp and brake warning display are used as the EBD control warning lamp.
When the brake pad temperature (assumed) exceeds the specified value, the ASC OFF lamp flashes (2 Hz).

Illumination condition of warning lamp and display in case of failure

Diagnosis code No.	Item	Brake warning lamp, brake warning display	ABS warning lamp, ABS warning display	ASC warning lamp ASC warning display	ASC OFF lamp
C1805	FCM/LDW/AHB malfunction	OFF	OFF	ON	OFF
C1807	FCM/LDW/AHB target deceleration signal	OFF	OFF	ON	OFF
U0317	EPB CAN timeout	OFF	OFF	OFF	OFF
U0417	EPB (CAN message)	OFF	OFF	OFF	OFF
U1015	FCM/LDW/AHB Parity/Toggle bit error	OFF	OFF	ON	OFF
U15A5	FCM/LDW/AHB CAN timeout	OFF	OFF	ON	OFF

Under EBD, ABS, ASC, TCL, brake assist, HSA, ESS, ACC, FCM, S-AWC, brake auto hold and emergency brake (ASC) in case of failure

Diagnosis code No.

Item

EBD

ABS

ASC

TCL

Brake assist

HSA

ESS

ACC

FCM

S-AWC

Brake auto hold

Emergency brake (ASC)

C100A

FL wheel speed sensor circuit

Enabled^*1

Prohibited

C1015

FR wheel speed sensor circuit

C1020

RL wheel speed sensor circuit

C102B

RR wheel speed sensor circuit

C1011

FL wheel speed sensor signal

Enabled^*1

Prohibited

C101C

FR wheel speed sensor signal

C1027

RL wheel speed sensor signal

C1032

RR wheel speed sensor signal

C1014

FL wheel speed sensor performance

Enabled^*1

Prohibited

C101F

FR wheel speed sensor performance

C102A

RL wheel speed sensor performance

C1035

RR wheel speed sensor performance

C1041

FL wheel speed tone performance

Enabled^*1

Prohibited

C1042

FR wheel speed tone performance

C1043

RL wheel speed tone performance

C1044

RR wheel speed tone performance

C1046

FL wheel speed sensor phase

Enabled^*1

Prohibited

C1047

FR wheel speed sensor phase

C1048

RL wheel speed sensor phase

C1049

RR wheel speed sensor phase

C104B

FL inlet valve

Prohibited

C104F

FR inlet valve

C1053

RL inlet valve

C1057

RR inlet valve

C105F

FL outlet valve

Prohibited

C1063

FR outlet valve

C1067

RL outlet valve

C105B

RR outlet valve

C1200

FL-RR cut valve

Prohibited

C1204

FR-RL cut valve

C1208

FL-RR suction valve

C120C

FR-RL suction valve

C2104

Valve power supply circuit

Prohibited

C1073

Motor drive circuit

Enabled

Prohibited

C2116

Pump motor voltage low

Enabled

Prohibited

C121D

Brake fluid pressure sensor circuit (Only the brake assist is defective.)

Enabled

Prohibited

Enabled

(Other than above)

Enabled

Prohibited

C121E

Brake fluid pressure sensor

Enabled

Prohibited

C1000

Brake SW (stuck)

Enabled

Prohibited

C123B

System control too long

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

C2200

ECU internal error

Prohibited^*4

Prohibited^*5

Prohibited

Prohibited^*5

Prohibited

C2101

Power supply high voltage (18.0 ± 1.0 V or more)

Prohibited

C1395

Incomplete Brake fluid filling

Enabled

C121C

Torque request signal denied

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

C2206

Re-execution of variant coding

Enabled

Prohibited

C1210

Longitudinal G sensor input circuit (Abnormality in longitudinal G-sensor output voltage)

Enabled

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

C1242

Longitudinal G sensor signal (Abnormality in longitudinal G-sensor output signal)

Enabled

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

C123C

Sensor cluster malfunction (Abnormality in lateral G & yaw rate output value)

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

C1392

Incomplete learn (Longitudinal G)

Enabled

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

C1393

Incomplete learn neutral(Lateral G)

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

C2204

Sensor cluster internal error

Enabled

Enabled^*2, Prohibited^{*3, 6}

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

Prohibited

Enabled^*2, Prohibited^*3

C1219

Steering angle sensor signal

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

C121A

SAS initialization (Steering wheel sensor neutral point not learned)

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

C2205

SAS internal error

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

C2002

Valve calibration not completed

Enabled

Prohibited

C1608

EEPROM fail

Enabled

C1707

Implausible coding data

Enabled

Prohibited^*6

Prohibited

Prohibited^*6

C1800^*7

Acceleration/Deceleration monitor

Enabled

Prohibited

Enabled

Prohibited

C1801^*7

Auto Stop lamp monitor

Enabled

Prohibited

C1802^*7

ACC ECU fail

Enabled

Prohibited

Enabled

C1803^*7

ACC mode off disagreement

Enabled

Prohibited

Enabled

C1804^*7

ACC deactivation disagreement

Enabled

Prohibited

Enabled

C1805

FCM/LDW/AHB malfunction

Enabled

Prohibited

Enabled

C1807

FCM/LDW/AHB target deceleration signal

Enabled

Prohibited

Enabled

U0100

Engine CAN timeout

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

U0101

T/M CAN timeout

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

U0114^*3

4WD CAN timeout

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

U0126

SAS CAN timeout

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

U0141

ETACS CAN timeout

Enabled

Prohibited^*6

U0317

EPB CAN timeout

Enabled

Prohibited

U0401

Engine (CAN message)

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

U0404^*8

AS&G (CAN message)

Enabled

Prohibited

Enabled

U0417

EPB (CAN message)

Enabled

Prohibited

Prohibited^*6

U0428

SAS (CAN message)

Enabled

Prohibited

Enabled

Prohibited

Enabled

Prohibited

Enabled

U0435^*9

AWC (CAN message)

Enabled

Prohibited

Enabled

U0440^*9

Implausible AWC data

Enabled

Prohibited

Enabled

U1073

Bus-off

Enabled

Prohibited

Enabled

Prohibited

U1004^*8

AS&G CAN timeout

Enabled

Prohibited

Enabled

U1011^*7

ACC CAN signal error

Enabled

Prohibited

Enabled

U1013^*7

Driver demand torque signal

Enabled

Prohibited

Enabled

U1015

FCM/LDW/AHB Parity/Toggle bit error

Enabled

Prohibited

Enabled

U1195

Coding not completed

Enabled

Prohibited

U1197

Coding data unavailable

Enabled

Prohibited

U15A0^*7

ACC ECU CAN timeout

Enabled

Prohibited

Enabled

U15A5

FCM/LDW/AHB CAN timeout

Enabled

Prohibited

Enabled

note

^*1: Prohibited when two or more wheels are faulty.
^*2: 2WD.
^*3: 4WD.
^*4: Not prohibited when the brake warning lamp is not illuminated.
^*5: Not prohibited when the ABS warning lamp is not illuminated.
^*6: Enabled in some cases.
^*7: Vehicles with ACC.
^*8: Vehicles with AS&G.
^*9: Vehicles with S-AWC.