Page 321 of 364

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-11
C1371Yaw rate sensor signal
errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1385Yaw rate sensor error
C1387Lateral G-sensor errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1388Yaw rate sensor active
check errorEnabledEnabledProhibitedProhibitedProhibitedEnabled
C1394Steering wheel sensor
neutral point not learnedEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1396Engine torque
intervention rejectionEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1505Steering wheel sensor
malfunction (detection at
the ASC-ECU side)EnabledEnabledProhibitedProhibitedProhibitedProhibited
C1555Range exceeding of
steering wheel sensor
C1607Malfunction of ASC-ECUProhibitedProhibitedProhibitedProhibitedProhibitedProhibited
ASC-ECU malfunction
(CAN communication
circuit failure)EnabledEnabledProhibitedProhibitedProhibitedProhibited
C1621G and yaw rate sensor
improper installationEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1860Abnormal rise of
ASC-ECU power supply
voltageProhibitedProhibitedProhibitedProhibitedProhibitedProhibited
C1861Abnormal drop of
ASC-ECU power supply
voltageProhibitedEnabledProhibitedProhibitedProhibitedProhibited
C1862Abnormal power supply
voltage of G and yaw rate
sensor (high voltage)EnabledEnabledProhibitedProhibitedProhibitedProhibited
C1863Abnormal power supply
voltage of G and yaw rate
sensor (low voltage)
U1073Bus-offEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1100Engine-related CAN
time-out errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1104Steering wheel sensor
CAN time-out errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1105G and yaw rate sensor
CAN time-out errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1406Accelerator pedal position
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1426Engine speed signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1427Engine torque signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
Diagnosis
code No.Item ABS EBD TCL ASC
Engine
controlBrake
controlEngine
controlBrake
control
Page 322 of 364

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-12
Indicator lamp
U1428Engine's maximum torque
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1429Engine's minimum torque
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1430Engine torque request
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
Diagnosis
code No.Item ABS EBD TCL ASC
Engine
controlBrake
controlEngine
controlBrake
control
Diagnosis
code No.ItemBrake warning
lampABS warning lampActive stability
control system
(ASC) indicator
lamp ASC OFF indicator
lamp
C1200Wheel speed sensor
(FR) system (open or
short to earth or power
supply)Illuminates when
three wheels or
more are
abnormal.IlluminatesIlluminatesIlluminates
C1205Wheel speed sensor
(FL) system (open or
short to earth or power
supply)
C1210Wheel speed sensor
(RR) system (open or
short to earth or power
supply)
C1215Wheel speed sensor
(RL) system (open or
short to earth or power
supply)
C1201Wheel speed sensor
(FR) system (sensor
transmitting error)Illuminates when
three wheels or
more are
abnormal.IlluminatesIlluminatesIlluminates
C1206Wheel speed sensor
(FL) system (sensor
transmitting error)
C1211Wheel speed sensor
(RR) system (sensor
transmitting error)
C1216Wheel speed sensor
(RL) system (sensor
transmitting error)
C1222Wheel sensor system
(abnormal power
supply voltage)IlluminateIlluminateIlluminateIlluminate
C1225Wheel speed sensor
malfunctionIlluminatesIlluminatesIlluminatesIlluminates
Page 324 of 364

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-14
C1364Brake fluid Pressure
sensor malfunctionOffIlluminatesIlluminatesIlluminates
C1366Lateral G sensor signal
malfunctionOffOffIlluminatesIlluminates
C1371Yaw rate sensor signal
malfunctionOffOffIlluminatesIlluminates
C1385Yaw rate sensor
malfunction
C1387Lateral G-sensor
malfunctionOffOffIlluminatesIlluminates
C1388Yaw rate sensor active
check error
C1394Steering wheel sensor
neutral point not
learnedOffOffIlluminatesIlluminates
C1396Active stability control
system control
temporarily disabled
(engine torque request
rejected)OffOffIlluminatesIlluminates
C1505Steering wheel sensor
abnormality (detected
at ABS/active stability
control
system-ECU-side)OffOffIlluminatesIlluminates
C1555Output error in steering
wheel sensor
C1607Defective active
stability control
system-ECUIlluminatesIlluminatesIlluminatesIlluminates
C1621G and yaw rate sensor
improper installationOffOffIlluminateIlluminate
C1860ABS/Active stability
control system-ECU
power supply voltage
malfunction (high
voltage) IlluminatesIlluminatesIlluminatesIlluminates
C1861ABS/Active stability
control system-ECU
power supply voltage
malfunction (low
voltage) IlluminatesIlluminatesIlluminatesIlluminates
C1862G and yaw rate sensor
power supply voltage
malfunction (high
voltage) OffOffIlluminatesIlluminates
Diagnosis
code No.Item Brake warning
lampABS warning lamp Active stability
control system
(ASC) indicator
lamp ASC OFF indicator
lamp
Page 334 of 364
DESCRIPTION OF CONSTRUCTION AND OPERATION
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-24
Traction control operation
ASC-ECU receives various kinds of information from
the engine ECU, steering wheel sensor, G and yaw
rate sensor, and wheel speed sensor. When
ASC-ECU determines that the driving wheel is slip
-
ping, it suppresses the wheel slippage. At this time,
ASC-ECU controls the brake fluid pressure of the
driving wheel determined to be slipping so that the
torque is transferred to another driving wheel. The operations of suction valve, cut valve, and solenoid
valve are basically the same as that of the stability
control. ASC-ECU and the engine ECU communi
-
cate with each other via CAN bus line. When the
accelerator pedal is depressed too far, the signal
requesting the engine output reduction is sent to the
engine ECU so that the TCL controllability can be
secured.