Mitsubishi L200. Manual - part 441

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-20

NOTE: 

.

•

*1

: Normality on rear wheels (both right and left)

•

*2

: Abnormality on rear wheels (both right and left)

•

*3

: Abnormality on rear wheel (right or left)

•

*4

: This diagnosis code is not set within the vehicle speed of 30 km/h or less.

•

*5

: This diagnosis code is not set within the vehicle speed of 10 km/h or less.

•

*6

: Vehicle with rear differential lock system.

•

*7

: A/T

HOW TO READ DIAGNOSIS CODE

Refer to GROUP 00 

− How to Use Troubleshooting 

and Inspection Service Points . 

HOW TO ERASE DIAGNOSIS CODE

Refer to GROUP 00 

− How to Use Troubleshooting 

and Inspection Service Points . 

DIAGNOSIS CODE CHART

M1355001101277

CAUTION

During diagnosis, a diagnosis code associated 
with other system may be set when the ignition 
switch is turned on with connector(s) discon-
nected. On completion, confirm all systems for 
diagnosis code(s). If diagnosis code(s) are set, 
erase them all.
Follow the inspection chart that is appropriate for the 
diagnosis code.

U1202

G-sensor parity 
error

Executed

Backup EBD 
control

Executed

Executed

U1204

Steering wheel 
sensor 
communication 
error

Normal control 

Normal control 

Executed

Executed

U1205

G and yaw rate 
sensor message 
counter error

Executed

Backup EBD 
control

Executed

Executed

Diagno
sis 
code 
No.

Item

ABS

EBD

Active stability 
control

Active traction 
control

Diagnosis 
code No.

Inspection item

Reference page

C1200

Wheel speed sensor (FR) (signal open circuit)

P.35C-23

C1205

Wheel speed sensor (FL) (signal open circuit)

P.35C-25

C1210

Wheel speed sensor (RR) (signal open circuit)

P.35C-28

C1215

Wheel speed sensor (RL) (signal open circuit)

P.35C-31

C1201

Wheel speed sensor (FR) (signal short circuit)

P.35C-34

C1206

Wheel speed sensor (FL) (signal short circuit)

P.35C-37

C1211

Wheel speed sensor (RR) (signal short circuit)

P.35C-40

C1216

Wheel speed sensor (RL) (signal short circuit)

P.35C-43

C1202

Wheel speed sensor (FR) (malfunction power circuit)

P.35C-47

C1207

Wheel speed sensor (FL) (malfunction power circuit)

P.35C-50

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-21

C1212

Wheel speed sensor (RR) (malfunction power circuit)

P.35C-53

C1217

Wheel speed sensor (RL) (malfunction power circuit)

P.35C-56

C1223

G and yaw rate sensor (active check error)

P.35C-59

C1225

*1

Wheel speed sensor malfunction (abnormality in tyre size)

P.35C-62

C1226

Control solenoid valve (FR) pressure holding system

P.35C-63

C1231

Control solenoid valve (FR) decompressing system

C1236

Control solenoid valve (FL) pressure holding system

C1241

Control solenoid valve (FL) pressure reducing system

C1246

Control solenoid valve (RR) pressure holding system

C1251

Control solenoid valve (RR) pressure reducing system

C1256

Control solenoid valve (RL) pressure holding system

C1261

Control solenoid valve (RL) decompressing system

C1266

Motor system

P.35C-64

C1273

Motor relay (stuck off)

C1274

Motor relay (stuck on)

C1278

Solenoid valve relay (open circuit)

P.35C-67

C1279

Solenoid valve relay (short circuit)

C1280

Motor fail-safe relay (short circuit)

P.35C-64

C1291

Reverse signal (seizure)

P.35C-70

C1292

CAN communication error

P.35C-72

C1293

*2

Abnormal rear differential lock detection circuit

P.35C-73

C1300

Linear valve (secondly)

P.35C-63

C1310

Linear valve (primary)

C1340

Abnormal stop lamp switch circuit

P.35C-78

C1361

Abnormal pressure sensor characteristics

P.35C-83

C1362

Abnormal pressure sensor (abnormal output value, open or short 
circuit)

P.35C-87

C1364

Pressure sensor malfunction

P.35C-88

C1369

G and yaw rate sensor (bank run record error)

P.35C-89

C1371

Yaw rate sensor (output error, oscillation error, zero-point error)

P.35C-89

C1381

G-sensor (output error, seizure)

P.35C-90

C1385

Yaw rate sensor (internal error)

P.35C-91

C1386

G-sensor (internal error)

P.35C-92

C1388

Yaw rate sensor (active check error)

P.35C-93

C1389

G-sensor (active check error)

C1393

G and yaw rate sensor (zero-point not calibrated)

P.35C-94

C1394

Steering wheel sensor neutral point not learned

P.35C-95

Diagnosis 
code No.

Inspection item

Reference page

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-22

NOTE: 

.

•

*1

: This diagnosis code is not set within the vehicle speed of 30 km/h or less.

•

*2

: Vehicle with rear differential lock system.

•

*3

: A/T

C1395

Brake fluid charging incompletion

Replace the hydraulic unit 
(ASTC-ECU) (Refer to 

P.35C-140

)

C1396

Engine-ECU malfunction

P.35C-96

C1505

Steering wheel sensor (signal seizure or abnormal neutral point)

P.35C-97

C1506

Steering wheel sensor (steering wheel sensor malfunction)

C1620

Engine-ECU communication error

P.35C-98

C1860

High voltage at ASTC-ECU power supply

P.35C-99

C1861

Low voltage at ASTC-ECU power supply

P.35C-100

U1073

Bus-off

P.35C-103

U1100

Engine-ECU timeout error

P.35C-103

U1101

*3

A/T-ECU timeout error

P.35C-104

U1104

Steering wheel sensor timeout error

P.35C-105

U1105

G and yaw rate sensor timeout error

P.35C-106

U1109

ETACS-ECU timeout error

P.35C-107

U1120

Engine malfunction detected

P.35C-108

U1190

ETACS signal receiving error

P.35C-108

U1200

Steering wheel sensor communication error

P.35C-109

U1201

Yaw rate sensor parity error

P.35C-110

U1202

G-sensor parity error

U1204

Steering wheel sensor communication error

P.35C-111

U1205

G and yaw rate sensor message counter error

P.35C-112

Diagnosis 
code No.

Inspection item

Reference page

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-23

DIAGNOSIS CODE PROCEDURES

Code No.C1200: Wheel speed sensor (FR) (signal open circuit)

ACB00772

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Grey     R : Red     P : Pink     V : Violet     PU : Purple

Wheel Speed Sensor Circuit

ASTC-ECU

FRONT WHEEL 
SPEED SENSOR 
(LH)

FRONT WHEEL 
SPEED SENSOR 
(RH)

REAR WHEEL 
SPEED SENSOR
(LH)

REAR WHEEL 
SPEED SENSOR
(RH)

AC800980

AG

Connector: A-48

(B)

AC501971AL

Connector: A-125

A-125 (B)

A-125 Harness
connector
(harness side)