Mitsubishi Montero (2002-2004). Manual - part 1046

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-55

When DTC 45 is set:

• M-ASTC-ECU connector E-119 terminal 7 and HBB con-

nector B-14 terminal 18

AC203901

AC204627AC

CONNECTOR: E-119

E-119

HARNESS CONNECTOR: 
COMPONENT SIDE

E-119

AC204703AB

CONNECTOR: B-14

B-14(B)

13
19

16

22

15

21

14

20

12

18 17

11

HARNESS CONNECTOR:
COMPONENT SIDE

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-56

When DTC 46 is set:

• M-ASTC-ECU connector E-120 terminal 8 and HBB con-

nector B-14 terminal 17

Q: Is the harness wire between HBB connector B-14 and M-

ASTC-ECU connector E-119, or HBB connector B-14 
and M-ASTC-ECU connector E-120 damaged?
YES : Repair it and then go to Step 5.
NO :  Go to Step 4.

AC203901

AC204627AG

CONNECTOR: E-120

E-120

HARNESS CONNECTOR: 
COMPONENT SIDE

E-120

AC204703AB

CONNECTOR: B-14

B-14(B)

13
19

16

22

15

21

14

20

12

18 17

11

HARNESS CONNECTOR:
COMPONENT SIDE

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-57

STEP 4. Check the solenoid valve
(1) Disconnect HBB connector B-14 and B-18, and measure at 

the HBB side.

(2) Measure the resistance between the following solenoid 

valve terminals.

• Control solenoid valve IN (FR): Between HBB connector 

B-14 terminal 19 and HBB connector B-18 terminal 34 

• Control solenoid valve OUT (FR): Between HBB con-

nector B-14 terminal 20 and HBB connector B-18 termi-
nal 34

• Control solenoid valve IN (FL): Between HBB connector 

B-14 terminal 21 and HBB connector B-18 terminal 34

• Control solenoid valve OUT (FL): Between HBB connec-

tor B-14 terminal 22 and HBB connector B-18 terminal 
34

• Control solenoid valve IN (RR): Between HBB connector 

B-14 terminal 15 and HBB connector B-18 terminal 34

• Control solenoid valve OUT (RR): Between HBB con-

nector B-14 terminal 16 and HBB connector B-18 termi-
nal 34

• Control solenoid valve IN (RL): Between HBB connector 

B-14 terminal 13 and HBB connector B-18 terminal 34 

• Control solenoid valve OUT (RL): Between HBB con-

nector B-14 terminal 14 and HBB connector B-18 termi-
nal 34

• Select solenoid valve (FR): Between HBB connector B-

14 terminal 18 and HBB connector B-18 terminal 34

• Select solenoid valve (FL): Between HBB connector B-

14 terminal 17 and HBB connector B-18 terminal 34

Standard value: Control solenoid valve IN: 4.75 

− 

5.25 

Ω 

Control solenoid valve OUT: 2.0 

− 2.4 Ω 

Select solenoid valve: 3.5 

− 3.9 Ω

Q: Is the resistance value within the standard value?

YES : Replace the M-ASTC-ECU and go to Step 5.
NO :  Replace the HBB master cylinder and hydraulic unit 

assembly. Then go to Step 5.

STEP 5. Recheck for diagnostic trouble code.
Q: Do DTCs 41, 42, 43, 44, 45 and 46 reset?

YES : Go to Step 1.
NO :  The procedure is complete.

AC204702AC

CONNECTORS: B-14, B-18

B-18(B)

B-14(B)

AC204704

HARNESS
CONNECTOR:
HARNESS SIDE

HARNESS
CONNECTOR:
HARNESS SIDE

B-14

B-18

AB

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-58

DTC 51: Valve Relay System (Short Circuit or ON Failure)

AC204645AB

M-ASTC-ECU Power Supply Circuit