Mitsubishi Montero Sport (2004+). Manual - part 122

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-83

STEP 4. Check that the malfunction is eliminated
Q: Is the malfunction eliminated?

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

P.17-99

). Then go to Step 5 .

STEP 5. Check that the malfunction is eliminated
Q: Is the malfunction eliminated?

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

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-84

INSPECTION PROCEDURE 7: Auto-cruise Control Indicator Light inside Combination Meter does not 
Illuminate. (However, Auto-cruise Control is Normal.)

Auto-cruise Control Indicator Light Drive Circuit

AC004775

CONNECTORS: C-04, C-05

AB

C-04

C-05

AC004747 AC

CONNECTOR: C-35

C-35 (B)

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-85

.

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 auto-cruise control-ECU 
illuminates the auto-cruise indicator through ECU ter-
minal number 15.

.

TECHNICAL DESCRIPTION (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 auto-cruise control-ECU

AC004763

JUNCTION BLOCK
(FRONT)

CONNECTOR: D-06

AD

 D-06

AC004764 AD

JUNCTION BLOCK
(REAR)

CONNECTOR: D-08

D-08

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-86

DIAGNOSIS

Required Special Tool:

• MB991223: Harness set

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

Combination Meter Assembly 

P.54-119

).

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

YES : Replace the bulb. Then go to Step 11 .
NO :  Go to Step 2 .

STEP 2. Measure the output circuit voltage at auto-cruise 
control-ECU connector C-35 by backprobing.
(1) Do not disconnect auto-cruise control-ECU connector C-35.
(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between auto-cruise control-ECU 

connector C-35 terminal 15 and ground by backprobing.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is measure voltage approximately battery positive 

voltage?
YES : Go to Step 10 .
NO :  Go to Step 3 .

AC004747 AC

CONNECTOR: C-35

C-35 (B)

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

AC002355 AG

C-35 HARNESS CONNECTOR:
HARNESS SIDE