Mitsubishi Montero Sport (2004+). Manual - part 105

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-15

STEP 2. Check auto-cruise control-ECU connector C-35 
and intermediate connector C-41 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q: Is the connector damaged?

YES : Repair or replace the damaged components. (Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

). Then go to Step 7 .

NO :  Go to Step 3 .

STEP 3. Check auto-cruise control vacuum pump 
connector A-02 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.
Q: Is the connector damaged?

YES : Repair or replace the damaged components. (Refer 

to GROUP 00E Harness Connector Inspection 

P.00E-2

).Then go to Step 7 .

NO :  Go to Step 4 .

AC202155

2

3

10

11

5

6

13

14

12

4

8

16 15

7

9

1

C-35 (B)

AB

CONNECTOR: C-35

C-35 HARNESS SIDE 
CONNECTOR

AC202075

22

2021

10

9

8

1718

6 7

19

1415

4 5

1112

1 2 3

13

16

CONNECTOR: C-41

AB

C-41

C-41: MALE SIDE CONNECTOR

AC202156

3

1 2

4

CONNECTOR:A-02

HYDRAULIC
UNIT

AB

A-02:HARNESS SIDE 
CONNECTOR

A-02 (B)

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-16

STEP 4. Check the auto-cruise vacuum pump.
(1) Disconnect the vacuum hose from the auto-cruise vacuum 

pump and connect a vacuum gauge to the vacuum pump.

(2) Disconnect the vacuum pump connector A-02.

(3) Check the auto-cruise vacuum pump and valves according 

to the following procedure:

• Connect the positive battery terminal to auto-cruise vac-

uum pump connector A-02 terminal 1, and the negative 
battery terminal to terminals 2, 3, and 4.
The vacuum gauge should read 27 kPa (8.0 in Hg) or 
more.

• The vacuum should be maintained when auto-cruise 

vacuum pump connector A-02 terminal 4 is discon-
nected from the negative battery terminal while termi-
nals 1, 2, and 3 remain connected. 
Then the vacuum gauge should read 0 kPa (0 in Hg) 
when terminal 2 is disconnected from the negative bat-
tery terminal while terminals 1, and 3 remain connected.

• The vacuum should be maintained when auto-cruise 

vacuum pump connector A-02 terminal 4 is discon-
nected from the negative battery terminal while termi-
nals 1, 2, and 3 remain connected.
Then the vacuum gauge should read 0 kPa (0 in Hg) 
when terminal 3 is disconnected from the negative bat-
tery terminal while terminals 1, and 2 remain connected.

Q: Are all of the above values satisfied?

YES : Go to Step 5 .
NO :  Replace the auto-cruise vacuum pump. (Refer to 

P.17-99

). Then go to Step 7 .

AC202156

3

1 2

4

CONNECTOR:A-02

HYDRAULIC
UNIT

AB

A-02:HARNESS SIDE 
CONNECTOR

A-02 (B)

AC004749 AC

VACUUM GAUGE

A-02 
HARNESS CONNECTOR:
AUTO-CRUISE VACUUM 
PUMP SIDE

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-17

STEP 5. Check the harness wire between auto-cruise 
control vacuum pump connector A-02 (terminal No.2, 3 
and 4) and auto-cruise control-ECU connector C-35 
(terminal No.7, 8 and 16).
Q: Is any harness wire between auto-cruise control 

vacuum pump connector A-02 (terminal No.2, 3 and 4) 
and auto-cruise control-ECU connector C-35 (terminal 
No.7, 8 and 16) good condition?
YES : It can be assumed that this malfunction is intermittent. 

(Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-7

).

NO :  Repair the damaged harness wire. Then go to Step 7 .

STEP 6. Check the diagnostic trouble codes.
Q: Is DTC 11 set?

YES : Replace the auto-cruise control-ECU. (Refer to 

P.17-99

). Then go to Step 7 .

NO :  It can be assumed that this malfunction is intermittent. 

(Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-7

).

STEP 7. Check the diagnostic trouble codes.
Q: Is DTC 11 set?

YES : Return to Step 1 .
NO :  This procedure is complete.

AC202156

3

1 2

4

CONNECTOR:A-02

HYDRAULIC
UNIT

AB

A-02:HARNESS SIDE 
CONNECTOR

A-02 (B)

AC202155

2

3

10

11

5

6

13

14

12

4

8

16 15

7

9

1

C-35 (B)

AB

CONNECTOR: C-35

C-35 HARNESS SIDE 
CONNECTOR

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-18

DTC 12: Vehicle Speed Sensor System

Vehicle Speed Sensor System Circuit

AC004750

AC

CONNECTOR: B-09

B-09 (B)

AC004751 AM

CONNECTOR: C-29

C-29