Mitsubishi Lancer (4A9 engine). Manual — part 37

35C-1

GROUP 35C

ACTIVE STABILITY

CONTROL SYSTEM

(ASC)

CONTENTS

SERVICE SPECIFICATIONS. . . . . . .

35C-4

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

35C-5

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

35C-6

DIAGNOSIS TROUBLESHOOTING FLOW

35C-6

NOTES WITH REGARD TO DIAGNOSIS .

35C-6

ABS WARNING LAMP INSPECTION. . . . .

35C-7

DIAGNOSIS FUNCTION. . . . . . . . . . . . . . .

35C-7

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

35C-16

DIAGNOSIS CODE PROCEDURES . . . . .

35C-19

CODE NO. C100A: ABNORMALITY IN FL WHEEL
SPEED SENSOR CIRCUIT . . . . . . . . . . . .

35C-19

CODE NO. C1015: ABNORMALITY IN FR WHEEL
SPEED SENSOR CIRCUIT . . . . . . . . . . . .

35C-23

CODE NO. C1020: ABNORMALITY IN RL WHEEL
SPEED SENSOR CIRCUIT . . . . . . . . . . . .

35C-27

CODE NO. C102B: ABNORMALITY IN RR WHEEL
SPEED SENSOR CIRCUIT . . . . . . . . . . . .

35C-31

CODE NO. C1011: ABNORMALITY IN FL WHEEL
SPEED SENSOR SIGNAL . . . . . . . . . . . . .

35C-36

CODE NO. C101C: ABNORMALITY IN FR WHEEL
SPEED SENSOR SIGNAL . . . . . . . . . . . . .

35C-39

CODE NO. C1027: ABNORMALITY IN RL WHEEL
SPEED SENSOR SIGNAL . . . . . . . . . . . . .

35C-43

CODE NO. C1032: ABNORMALITY IN RR WHEEL
SPEED SENSOR SIGNAL . . . . . . . . . . . . .

35C-47

CODE NO. C1014: MUTUAL MONITORING OF FL
WHEEL SPEED SENSOR . . . . . . . . . . . . .

35C-50

CODE NO. C101F: MUTUAL MONITORING OF FR
WHEEL SPEED SENSOR . . . . . . . . . . . . .

35C-52

CODE NO. C102A: MUTUAL MONITORING OF RL

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

35C-54

CODE NO. C1035: MUTUAL MONITORING OF RR
WHEEL SPEED SENSOR . . . . . . . . . . . . .

35C-56

CODE NO. C1041: ABNORMALITY IN PERIODICAL
SIGNAL FOR FL WHEEL SPEED SENSOR

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

35C-58

CODE NO. C1042: ABNORMALITY IN PERIODICAL
SIGNAL FOR FR WHEEL SPEED SENSOR

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

35C-60

CODE NO. C1043: ABNORMALITY IN PERIODICAL
SIGNAL FOR RL WHEEL SPEED SENSOR

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

35C-62

CODE NO. C1044: ABNORMALITY IN PERIODICAL
SIGNAL FOR RR WHEEL SPEED SENSOR

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

35C-64

CODE NO. C1046: FL WHEEL SPEED SENSOR
CONTROL PHASE TIME EXCEEDED . . . .

35C-67

CODE NO. C1047: FR WHEEL SPEED SENSOR
CONTROL PHASE TIME EXCEEDED . . . .

35C-70

CODE NO. C1048: RL WHEEL SPEED SENSOR
CONTROL PHASE TIME EXCEEDED . . . .

35C-74

CODE NO. C1049: RR WHEEL SPEED SENSOR
CONTROL PHASE TIME EXCEEDED . . . .

35C-78

CODE NO. C104B: ABNORMALITY IN FL WHEEL
INLET VALVE SYSTEM . . . . . . . . . . . . . . .

35C-82

CODE NO. C2104: FAULTY VALVE POWER SUPPLY
CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-83

CODE NO. C1073: FAULTY MOTOR DRIVE CIRCUIT

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

35C-87

CODE NO. C2116: ABNORMALITY IN POWER
SUPPLY VOLTAGE IN PUMP MOTOR . . .

35C-91

CODE NO. C121D: ABNORMALITY IN BRAKE FLUID
PRESSURE SENSOR CIRCUIT . . . . . . . . .

35C-94

CODE NO. C121E: ABNORMALITY IN BRAKE FLUID

35C-2

PRESSURE SENSOR OUTPUT SIGNAL .

35C-96

CODE NO. C1000: ABNORMALITY IN STOP LAMP
SWITCH CIRCUIT . . . . . . . . . . . . . . . . . . .

35C-98

CODE NO. C123B: PROLONGED OPERATION OF
ASC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-102

CODE NO. C2200: ABNORMALITY IN ASC-ECU

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

35C-104

CODE NO. C2101: ABNORMALITY IN BATTERY
VOLTAGE (HIGH VOLTAGE). . . . . . . . . . .

35C-104

Code No. C1395: Brake fluid filling not completed

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

35C-105

CODE NO. C121C: TORQUE REQUEST SIGNAL
REJECTION . . . . . . . . . . . . . . . . . . . . . . . .

35C-106

CODE NO. C1290: CAN TIME-OUT ERROR

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

35C-107

CODE NO. C2203: VIN NOT WRITTEN. . .

35C-108

CODE NO. C2206: RE-EXECUTION OF VARIANT
CODING . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-109

CODE NO. C123C: ABNORMALITY IN G AND YAW
RATE SENSOR (LATERAL G AND YAW RATE
SENSOR) . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-110

CODE NO. C2204: INTERNAL ABNORMALITY IN G
AND YAW RATE SENSOR (LATERAL G AND YAW
RATE SENSOR) . . . . . . . . . . . . . . . . . . . . .

35C-113

CODE NO. C2111: BRAKE FLUID PRESSURE
SENSOR POWER SUPPLY CIRCUIT (LOW INPUT)

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

35C-115

CODE NO. C2114: ABNORMALITY IN G AND YAW
RATE SENSOR OPERATION VOLTAGE .

35C-116

CODE NO. C123A: ABNORMALITY IN SENSOR
CALIBRATION . . . . . . . . . . . . . . . . . . . . . .

35C-119

CODE NO. C1219: ABNORMALITY IN STEERING
WHEEL SENSOR SIGNAL . . . . . . . . . . . . .

35C-120

CODE NO. C121A: ABNORMALITY IN STEERING
WHEEL SENSOR INITIALISATION . . . . . .

35C-122

CODE NO. C2205: INTERNAL MALFUNCTION OF
STEERING WHEEL SENSOR . . . . . . . . . .

35C-123

CODE NO. C2002: VALVE CALIBRATION NOT
COMPLETED . . . . . . . . . . . . . . . . . . . . . . .

35C-123

CODE NO. C2003: CONTROL PARAMETER
IMCOMPLETE . . . . . . . . . . . . . . . . . . . . . .

35C-124

CODE NO. C1608: IMPLAUSIBLE DIAGNOSIS DATA

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

35C-126

CODE NO. U0001: BUS-OFF . . . . . . . . . . .

35C-129

CODE NO. U0404 AS SIGNAL MALFUNCTION

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

35C-130

CODE NO. U0100: ENGINE TIME-OUT ERROR

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

35C-131

CODE NO. U1004 AS CAN TIME-OUT . . .

35C-132

Code No. U0125: G and yaw rate sensor message
time-out error/message error . . . . . . . . . . .

35C-133

CODE NO. U0401: ENGINE MALFUNCTION

DETECTED . . . . . . . . . . . . . . . . . . . . . . . . .

35C-135

CODE NO. U0428: COMMUNICATION ERROR IN
STEERING WHEEL SENSOR . . . . . . . . . .

35C-136

CODE NO. U1003: G AND YAW RATE SENSOR BUS-
OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-137

CODE NO. U1415: VARIANT CODING NOT
COMPLETED . . . . . . . . . . . . . . . . . . . . . . .

35C-139

CODE NO. U1417: VARIANT CODING VALUE
INVALID (INCLUDES FAULTY INSTALLATION)

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

35C-140

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

35C-141

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

35C-142

THE SCAN TOOL CAN NOT COMMUNICATE WITH
TCL/ACTIVE STABILITY CONTROL SYSTEM-ECU

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

35C-142

ASC OFF INDICATOR LAMP FLASHES AT A RATE
OF 2HZ.. . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-142

BRAKE WARNING LAMP STAYS ON WITH THE
PARKING BRAKE LEVER RELEASED. . . .

35C-144

WHEN THE IGNITION SWITCH IS TURNED TO THE
"ON" POSITION (ENGINE STOPPED), THE TCL OFF
INDICATOR LAMP DOES NOT ILLUMINATE.

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

35C-147

BRAKE WARNING LAMP DOES NOT ILLUMINATE
WHEN THE IGNITION SWITCH IS TURNED TO ON
POSITION (ENGINE STOPPED). . . . . . . . .

35C-149

ABS WARNING LAMP STAYS ON AFTER THE
ENGINE IS STARTED. . . . . . . . . . . . . . . . .

35C-150

ASC INDICATOR LAMP STAYS ON AFTER THE
ENGINE IS STARTED. . . . . . . . . . . . . . . . .

35C-151

ASC-OFF INDICATOR LAMP STAYS ON AFTER THE
ENGINE IS STARTED. . . . . . . . . . . . . . . . .

35C-152

WHEN THE TCL SWITCH IS PUSHED, TCL SYSTEM
CANNOT BE DISABLED. . . . . . . . . . . . . . .

35C-155

FAULTY ABS OPERATION . . . . . . . . . . . .

35C-157

ABNORMAL ACTIVE STABILITY CONTROL SYSTEM
OPERATION . . . . . . . . . . . . . . . . . . . . . . . .

35C-158

TCL/ACTIVE STABILITY CONTROL SYSTEM-ECU
POWER SUPPLY CIRCUIT SYSTEM. . . . .

35C-159

STEERING WHEEL SENSOR POWER SUPPLY
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-167

ABS/STABILITY CONTROL/TCL OPERATES TOO
FREQUENTLY. . . . . . . . . . . . . . . . . . . . . . .

35C-169

ESS INOPERATIVE OR IMPROPER OPERATIVE

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

35C-171

THE INITIAL CHECK SOUND OF HYDRAULIC UNIT
LOUD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-172

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

35C-172

ACTUATOR TEST REFERENCE TABLE . .

35C-175

CHECK AT ECU TERMINAL. . . . . . . . . . . .

35C-177

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

35C-179

35C-3

WHEEL SPEED SENSOR OUTPUT CURRENT
MEASUREMENT . . . . . . . . . . . . . . . . . . . .

35C-179

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

35C-179

REMEDY FOR A DISCHARGED BATTERY

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

35C-182

ALL SENSOR CALIBRATION. . . . . . . . . . .

35C-182

G AND YAW RATE SENSOR CALIBRATION

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

35C-182

STEERING WHEEL SENSOR CALIBRATION

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

35C-183

BRAKE FLUID PRESSURE SENSOR CALIBRATION

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

35C-184

ASC OFF SWITCH. . . . . . . . . . . . . . .

35C-184

ASC OFF SWITCH REMOVAL AND INSTALLATION

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

35C-184

ASC OFF SWITCH . . . . . . . . . . . . . . . . . . .

35C-185

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

35C-185

HYDRAULIC UNIT REMOVAL AND INSTALLATION

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

35C-185

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

35C-188

WHEEL SPEED SENSOR REMOVAL AND
INSTALLATION . . . . . . . . . . . . . . . . . . . . . .

35C-188

WHEEL SPEED SENSOR INSPECTION . .

35C-188

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

35C-189

G AND YAW RATE SENSOR REMOVAL AND
INSTALLATION . . . . . . . . . . . . . . . . . . . . . .

35C-189

STEERING WHEEL SENSOR . . . . . .

35C-190

STEERING WHEEL SENSOR REMOVAL AND
INSTALLATION . . . . . . . . . . . . . . . . . . . . . .

35C-190

SERVICE SPECIFICATIONS

ACTIVE STABILITY CONTROL SYSTEM (ASC)

35C-4

SERVICE SPECIFICATIONS

M1355008200089

Item

Standard value

Wheel speed sensor current mA

5.9

− 8.4 or 11.8 − 16.8

Wheel speed sensor insulation resistance M

Ω

5 or more