Mitsubishi Montero (2004+). Manual - part 409

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-43

INSPECTION PROCEDURE 6: Auto-cruise Control Indicator Light inside Combination Meter does not 
Illuminate. (However, Auto-cruise Control is Normal.)

AC204905AB

Auto-cruise Control Indicator Light Drive Circuit

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-44

.

CIRCUIT OPERATION
The power for the auto-cruise indicator in the combi-
nation meter is supplied from the ignition switch 
(IG1). When the auto-cruise control system is operat-
ing, the transistor inside the PCM illuminates the 
auto-cruise indicator through PCM terminal number 
13.

.

COMMENT
The cause is probably the malfunction of the indica-
tor bulb or the malfunction of the connector or har-
ness.

.

TROUBLESHOOTING HINTS

• Malfunction of the indicator bulb.

• Damaged harness or connector.

• Malfunction of the PCM.

AC205047

CONNECTORS: D-03, D-04 

D-03

D-04

AB

D-03 (GR)

D-04 (GR)

AC205048

CONNECTOR: D-132

D-132(GR)

PCM

AB

AC205049

CONNECTORS: D-208, D-210

AB

JUNCTION BLOCK
(FRONT VIEW)

D-208

D-210

D-208

D-210

AC205045

6

1

7

2

9

8

10

3

5

12

11

4

1314

E-110

CONNECTOR: E-110

AB

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-45

DIAGNOSIS

.

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check the auto-cruise control indicator bulb.
(1) Remove the combination meter. Refer to GROUP 54A, 

Combination Meter Assembly and Vehicle Speed Sensor 

P.54A-76

.

(2) Check the auto-cruise control indicator bulb.
Q: Is the bulb blown?

YES : Replace the bulb. Then check that the malfunction is 

eliminated.

NO :  Go to Step 2.

STEP 2. Measure the power supply voltage at combination 
meter connector D-03.
(1) Disconnect connector D-03 and measure at the harness 

side.

(2) Turn the ignition switch to the "ON" position.
(3) Switch "ON" the auto-cruise control main switch.

(4) Measure the voltage between terminal 62 and ground.

• The voltage should measure battery positive voltage.

Q: Is the measured voltage battery positive voltage?

YES : Go to Step 5.
NO :  Go to Step 3.

AC205050

CONNECTOR: D-03

AB

D-03 (GR)

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

ACX01925AC

D-03 HARNESS CONNECTOR:
COMPONENT SIDE

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-46

STEP 3. Check combination meter connector D-03 and 
junction block connector D-210 for looser, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 4.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 4. Check the harness for open circuit or short circuit 
to ground between combination meter connector D-03 
terminal 62 and junction block connector D-210 terminal 1.
Q: Is the harness wire in good condition?

YES : Go to Step 5.
NO :  Repair or replace the harness wire.

AC205050

CONNECTOR: D-03

AB

D-03 (GR)

AC205051

AB

JUNCTION BLOCK
(FRONT VIEW)

D-210

CONNECTOR: D-210

AC205050

CONNECTOR: D-03

AB

D-03 (GR)

AC205051

AB

JUNCTION BLOCK
(FRONT VIEW)

D-210

CONNECTOR: D-210