Mitsubishi Montero (2004+). Manual — part 1072

G-SENSOR

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-131

4. Remove all connections from the ABS sensor. The circuit

should be open between terminals (1) and (2) and the body
of the ABS sensor. If the circuit is not open, replace with a
new ABS sensor.

5. Check the ABS sensor cable for breakage, damage or

disconnection. Replace with a new one if a problem is found.
NOTE: When checking for cable damage, remove the cable
clamp part from the body and then gently bend and pull the
cable near the clamp.

.

TOOTHED ABS ROTOR CHECK
Check whether the ABS rotor teeth are broken or deformed.
Replace the driveshaft UJ assembly for the front side or the
driveshaft BJ assembly for the rear side, respectively, if the
teeth are damaged or deformed.

G-SENSOR

REMOVAL AND INSTALLATION

M1352010100154

Refer to GROUP 35C, G and Yaw Rate Sensor

P.35C-215

.

SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

M1352012400270

SERVICE SPECIFICATIONS

M1352000300403

ACX01120 AB

ITEM

SPECIFICATIONS

M-ASTC-ECU
M-ASTC-ECU mounting nut

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

HBB buzzer bracket mounting nut

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

HBB buzzer mounting nut

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

G-sensor
G-sensor bracket mounting nut

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

G-sensor mounting nut

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

ITEMS

STANDARD VALUE

Control solenoid valve resistance

Ω

IN

4.75

− 5.25

OUT

2.0

− 2.4

Select solenoid valve resistance

Ω

3.5

− 3.9

ABS sensor internal resistance k

Ω

1.0

− 1.5

NOTES

35C-1

GROUP 35C

MITSUBISHI ACTIVE

SKID AND

TRACTION

CONTROL SYSTEM

CONTENTS

GENERAL DESCRIPTION. . . . . . . . .

35C-2

M-ASTC DIAGNOSIS. . . . . . . . . . . . .

35C-3

INTRODUCTION TO MITUBISHI ACTIVE SKID
AND TRACTION CONTROL SYSTEM
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . .

35C-3

TROUBLESHOOTING STRATEGY . . . . . .

35C-3

TROUBLE CODE DIAGNOSIS. . . . . . . . . .

35C-4

DIAGNOSTIC TROUBLE CODE CHART . .

35C-7

DIAGNOSTIC TROUBLE CODE
PROCEDURES. . . . . . . . . . . . . . . . . . . . . .

35C-9

CAN BUS LINE DIAGNOSTICS . . . . . . . . .

35C-60

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

35C-189

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

35C-190

DATA LIST REFERENCE TABLE . . . . . . .

35C-208

ACTUATOR TEST REFERENCE . . . . . . . .

35C-208

CHECK AT M-ASTC-ECU . . . . . . . . . . . . .

35C-209

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

35C-210

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

35C-211

ABS SENSOR OUTPUT VOLTAGE
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-211

SOLENOID VALVE CHECK . . . . . . . . . . . .

35C-211

IN THE EVENT OF A DISCHARGED
BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . .

35C-212

M-ASTC CONTROL UNIT
(M-ASTC-ECU) . . . . . . . . . . . . . . . . . .

35C-213

REMOVAL AND INSTALLATION . . . . . . . .

35C-213

ABS SENSOR. . . . . . . . . . . . . . . . . . .

35C-214

REMOVAL AND INSTALLATION . . . . . . . .

35C-214

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

35C-215

REMOVAL AND INSTALLATION . . . . . . . .

35C-215

STEERING WHEEL SENSOR . . . . . .

35C-216

REMOVAL AND INSTALLATION . . . . . . . .

35C-216

SPECIFICATIONS . . . . . . . . . . . . . . .

35C-217

FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . .

35C-217

SERVICE SPECIFICATIONS . . . . . . . . . . .

35C-218

GENERAL DESCRIPTION

TSB Revision

MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM

35C-2

GENERAL DESCRIPTION

M1353000100026

The Mitubishi active skid and traction control system
consists of the following components; ABS sensors,
stoplight switch, hydraulic unit in hydraulic brake
booster (HBB), master cylinder pressure sensor,
M-ASTC-ECU, ABS rotor, steering wheel sensor, G
and yaw rate sensor, PCM, Active skid control sys-
tem operation indicator light/Active traction control
system operation indicator light, Active skid control
system OFF indicator light, 4WD indicator light, HBB

buzzer, brake system warning light and Anti-lock
braking system warning light. If a problem occurs in
the system, the malfunctioning components can be
identified and the trouble symptoms will be memo-
rized by the diagnostic function.
In addition, reading of diagnostic trouble codes and
data list and actuator testing are possible by using
the Scan Tool.
The M-ASTC-ECU runs a self-check for three sec-
onds upon start-up (also ignition switch ON, engine
stopped). The anti-lock braking system warning light
should be illuminated during the self-check and turn
off when the self-check completes.

CONSTRUCTION DIAGRAM

AC204046

ACX02223

1

1

2

3

6

12

14

13

15

16

18

20

17

5

AB

4

19

11

7

10

8

9