Mitsubishi Grandis. Manual — part 919

35C-1

GROUP 35C

TRACTION

CONTROL/ACTIVE

STABILITY

CONTROL SYSTEM

CONTENTS

GENERAL INFORMATION . . . . . . . .

35C-3

SERVICE SPECIFICATIONS. . . . . . .

35C-3

SPECIAL TOOLS. . . . . . . . . . . . . . . .

35C-4

TROUBLESHOOTING . . . . . . . . . . . .

35C-5

STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING . . . . . . . . . . . . . . . .

35C-5

NOTES WITH REGARD TO DIAGNOSIS .

35C-5

TCL/ASC INDICATOR LAMP, TCL OFF INDICATOR
LAMP, BRAKE WARNING LAMP INSPECTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-6

DIAGNOSTIC FUNCTION . . . . . . . . . . . . .

35C-6

DIAGNOSIS CODE CHART . . . . . . . . . . . .

35C-6

DIAGNOSTIC TROUBLE CODE PROCEDURES
<TCL/ASC-ECU> . . . . . . . . . . . . . . . . . . . .

35C-9

Code No.C1200: Front Right Wheel Speed Sensor
(Open Circuit or Short Circuit)
Code No.C1205: Front Left wheel Speed Sensor (Open
Circuit or Short Circuit)
Code No.C1210: Rear Right wheel Speed Sensor
(Open Circuit or Short Circuit)
Code No.C1215: Rear Left wheel Speed Sensor (Open

Circuit or Short Circuit) . . . . . . . . . . . . . . . .

35C-9

Code No.C1201: Front Right Wheel Speed Sensor
Code No.C1206: Front Left wheel Speed Sensor

Code No.C1211: Rear Right wheel Speed Sensor
Code No.C1216: Rear Left wheel Speed Sensor

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-23

Code No.C1226: Control solenoid valve (FR) pressure
holding system
Code No.C1236: Control solenoid valve (FL) pressure
holding system
Code No.C1246: Control solenoid valve (RR) pressure
holding system
Code No.C1256: Control solenoid valve (RL) pressure
holding system
Code No.C1300: Front-right cut valve (Primary)
Code No.C1310: Front-left cut valve (secondly)
Code No.C1231: Control solenoid valve (FR)
decompressing system
Code No.C1241: Control solenoid valve (FL) pressure
reducing system
Code No.C1251: Control solenoid valve (RR) pressure
reducing system
Code No.C1261: Control solenoid valve (RL)
decompressing system

Code No.C1305: Front-right suction valve (Primary)
Code No.C1315: Front-left suction valve (secondly)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-36

Code No. C1271: Motor drive circuit (Abnormal power

supply voltage) . . . . . . . . . . . . . . . . . . . . . .

35C-42

Code No.C1276: Valve system . . . . . . . . . .

35C-47

Code No.C1340: Stop lamp switch system .

35C-52

Code No.C1361: Abnormal pressure sensor

characteristics
Code No.C1364: Pressure sensor malfunction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-60

Code No.C1366: Lateral G-sensor (seizure or abnormal
output signal)
Code No.C1371: Yaw rate sensor (seizure or abnormal

output signal) . . . . . . . . . . . . . . . . . . . . . . . .

35C-62

35C-2

Code No.C1377: Sensor cluster communication
abnormality . . . . . . . . . . . . . . . . . . . . . . . . .

35C-72

Code No.C1505: Steering wheel sensor (signal seizure
or abnormal neutral point)
Code No.C1506: Steering wheel sensor (steering

sensor malfunction). . . . . . . . . . . . . . . . . . .

35C-81

Code No.C1607: Trouble in TCL/ASC-ECU

35C-86

Code No.C1640: Incorrectly installed TCL/ASC-ECU

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-87

Code No.C1860: Power supply high voltage

Code No.C1861: Power supply low voltage

35C-89

Code No.C1864: Sensor cluster power supply
abnormality . . . . . . . . . . . . . . . . . . . . . . . . .

35C-96

Code No.U1073: Bus off . . . . . . . . . . . . . . .

35C-104

Code No. U1100 CAN communications system time out

error engine related data. . . . . . . . . . . . . . .

35C-106

Code No.U1101 CAN communications system time out

error A/T related data . . . . . . . . . . . . . . . . .

35C-109

Code No.U1104: SAS CAN Timeout/Not equipped

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-112

Code No.U1120 CAN communications system TCL

uncontrollable by engine malfunction . . . . .

35C-114

DIAGNOSTIC TROUBLE CODE PROCEDURES

<STEERING WHEEL SENSOR> . . . . . . . .

35C-118

Code No.C1551: Improper output voltage of steering
wheel sensor
Code No.C1552: Abnormal steering wheel sensor
output pattern
Code No.C1553: Abnormal optical sensor output
pattern
Code No.C1554: Steering wheel sensor speed is out of
range
Code No.C1555: Steering wheel sensor out of range

Code No.C1608: EEPROM failure . . . . . . .

35C-118

Code No.U1073: Bus off . . . . . . . . . . . . . . .

35C-119

SYMPTOM CHART. . . . . . . . . . . . . . . . . . .

35C-122

SYMPTOM PROCEDURES . . . . . . . . . . . .

35C-123

INSPECTION PROCEDURE 1: Communication
between Scan Tool and the TCL/ASC-ECU is not
possible. . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-123

INSPECTION PROCEDURE 2: Communication
between Scan Tool and the steering wheel sensor is not
possible. . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-126

INSPECTION PROCEDURE 3: TCL/ASC-ECU power

supply supply system . . . . . . . . . . . . . . . . .

35C-129

INSPECTION PROCEDURE 4: Steering wheel sensor

power supply supply system . . . . . . . . . . . .

35C-135

INSPECTION PROCEDURE 5: G and yaw rate sensor

power supply supply system . . . . . . . . . . . .

35C-141

INSPECTION PROCEDURE 6: When the Ignition
Switch is Turned to the "ON" Position (Engine
Stopped), the "TCL OFF" Indicator Lamp does not
Illuminate.
INSPECTION PROCEDURE 7: When the Ignition
Switch is Turned to the "ON" Position (Engine
Stopped), the TCL Indicator Lamp does not Illuminate.
INSPECTION PROCEDURE 8: The "TCL OFF"
Indicator Lamp Remains Illuminated After the Engine is
Started.

INSPECTION PROCEDURE 9: The TCL Indicator
Lamp Remains Illuminated After the Engine is Started.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-150

INSPECTION PROCEDURE 10: When the TCL Switch
is Push On, TCL System does not Cancelled.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-152

INSPECTION PROCEDURE 11: TCL/ASC System

dose not Operate. . . . . . . . . . . . . . . . . . . . .

35C-156

DATA LIST REFERENCE TABLE. . . . . . . .

35C-156

ACTUATOR TEST REFERENCE TABLE . .

35C-157

CHECK AT ABS-ECU . . . . . . . . . . . . . . . . .

35C-158

ON-VEHICLE SERVICE . . . . . . . . . . .

35C-159

HYDRAULIC UNIT CHECK . . . . . . . . . . . . .

35C-159

IN THE EVENT OF A DISCHARGED BATTERY

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-162

G AND YAW LATE SENSOR CALIBRATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-162

STEERING WHEEL SENSOR CALIBRATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-162

TCL SWITCH . . . . . . . . . . . . . . . . . . .

35C-163

REMOVAL AND INSTALLATION . . . . . . . .

35C-163

HYDRAULIC UNIT . . . . . . . . . . . . . . .

35C-165

REMOVAL AND INSTALLATION . . . . . . . .

35C-165

WHEEL SPEED SENSOR . . . . . . . . .

35C-166

REMOVAL AND INSTALLATION . . . . . . . .

35C-166

G AND YAW RATE SENSOR. . . . . . .

35C-167

REMOVAL AND INSTALLATION . . . . . . . .

35C-167

STEERING WHEEL SENSOR . . . . . .

35C-168

REMOVAL AND INSTALLATION . . . . . . . .

35C-168

GENERAL INFORMATION

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-3

GENERAL INFORMATION

M1355000200029

FEATURES

Traction Control/Active Stability Control System
(TCL/ASC) is available for all models as optional
equipment.

• The Traction Control/Active Stability Control

System is a combination system of active stability
control system and traction control system. The
active stability control system avoids a dangerous
vehicle attitude by limiting the engine output and
braking wheels according to driving conditions.
The traction control system prevents wheel
spinning at vehicle start.

• Fail-safe function ensures safety is maintained

• Improved serviceability

• To shorten the lines and enhance data

transmission reliability, communication with other
ECU is performed over a CAN (Controller Area
Network).

NOTE: For further details on CAN communication,

refer to GROUP 54D, CAN

P.54D-3

.

NOTE: On vehicles with ASC, the TCL/ASC-ECU

controls ABS as well.

CONSTRUCTION DIAGRAM

SERVICE SPECIFICATIONS

M1355008200023

AC311795AC

Wheel speed sensor

Stoplamp switch

Traction control switch

Wheel speed sensor

G and yaw rate sensor

Engine A/T-ECU or Engine-ECU

Steering wheel sensor

Traction control-OFF
indicator lamp

Traction control/
Active stability
control indicator
lamp

Diagnosis connector

Pressure sensor,
Hydraulic unit and
Traction Control/
Active Stability
Control System
control unit
(TCL/ASC-ECU)

Item

Standard value

Wheel speed sensor internal resistance k

Ω

1.24

− 1.64

SPECIAL TOOLS

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-4

SPECIAL TOOLS

M1355005800037

Tool

Number

Name

Use

MB991955
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826

MUT-III sub-assembly
A: Vehicle
Communication Interface
(V.C.I.)
B: MUT-III USB cable
C: MUT-III main harness
A (Vehicles with CAN
communication system)
D: MUT-III main harness
B (Vehicles without CAN
communication system)
E: MUT-III measurement
adapter
F: MUT-III trigger harness

Checking the TCL/ASC

CAUTION

MUT-III main harness A
(MB991911) should be
used. MUT-III main
harness B should not
be used for this vehicle.

MB991997

ASC check harness

Checking the
TCL/ASC-ECU

MB991348

Test harness set

Checking the G and yaw
late sensor

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

A

B

C

D

E

F

DO NOT USED

MB991951

MB991348