Mitsubishi Montero (2002-2004). Manual — part 837
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-11
Without using scan tool MB991502
1. Turn the ignition switch to the "ON" position while holding
the auto-cruise control switch in the "SET" (down) position.
2. Check to make sure the "CRUISE" light on the instrument
panel is flashing.
3. Put the auto-cruise control switch in the "SET" (down)
position. Depress the brake pedal and hold for five seconds
or more. Release the brake pedal, auto-cruise control
switch, then turn the ignition switch to the "LOCK" (OFF)
position. The DTC(s) are now erased.
INSPECTION USING SCAN TOOL MB991502,
DATA LIST
Required Special Tool:
• MB991502: Scan Tool (MUT-II)
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
1. Connect scan tool MB991502 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Carry out inspection by means of the data list. If there is an
abnormality, check and repair the chassis harnesses and
components. (Refer to
, Data List Reference Table.)
4. Re-check using scan tool MB991502 and check to be sure
that the abnormal input and output have returned to normal
because of the repairs.
5. Erase the diagnostic trouble code(s).
6. Turn the ignition switch to the "LOCK" (OFF) position.
7. Disconnect scan tool MB991502 from the data link
connector.
8. Start the engine again and do a test drive to confirm that the
problem is eliminated.
ACX02250
AUTO-CRUISE
CONTROL SWITCH
RESUME SWITCH:
ON
SET SWITCH:
ON
BRAKE PEDAL
ON POSITION
STOPLIGHT SWITCH
AB
ACX02258 AB
MB991502
16PIN
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-12
DIAGNOSTIC TROUBLE CODE CHART
M1172002200240
Check according to the inspection chart that is
appropriate for the diagnostic trouble code.
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC15 : Auto-cruise Control Switch System
DIAGNOSTIC TROUBLE
CODE NO.
INSPECTION ITEM
REFERENCE PAGE
15
Auto-cruise control switch system
21
Cancel latch signal system
22
Stoplight switch system
23
Powertrain control module (PCM) and its related
components
AC204903AB
Auto-cruise Control Switch System Circuit
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-13
.
CIRCUIT OPERATION
This circuit judges the signals of each switch ("SET,"
"RESUME" and "CANCEL") of the auto-cruise con-
trol switch. The PCM detects the state of the auto-
cruise control switch by sensing the voltages shown
below.
• When all switches are OFF: 4.7 − 5.3 volts
• When the "MAIN" switch is ON: 0 − 0.3 volt
• When the "SET" switch is ON: 2.1 − 2.7 volts
• When the "RESUME" switch is ON: 3.3 − 4.0
volts
• When the "CANCEL" switch is ON: 0.8 − 1.5 volts
.
DTC SET CONDITIONS
Check Condition
• The auto-cruise control indicator light illuminates.
Judgement Criteria
• The "SET" or "RESUME" switch remains on for
60 seconds.
.
TROUBLESHOOTING HINTS (The most likely
causes for this case:)
• Malfunction of the auto-cruise control switch.
• Malfunction of the clock spring.
• Damaged harness or connector.
• Malfunction of the PCM.
AC205036
CONNECTORS: D-135, D-136
D-135(GR)
PCM
AB
D-136(GR)
D-135
D-136
1 2 3
5
4
6
AC205037
2
1
3
CONNECTORS: D-205, D-226, D-227, D-230
D-227
D-226
D-205(B)
D-227
D-226
D-205
D-230(B)
D-230
AB
AC205045
6
1
7
2
9
8
10
3
5
12
11
4
1314
E-110
CONNECTOR: E-110
AB
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-14
DIAGNOSIS
.
Required Special Tools:
• MB991223: Harness Set
• MB991502: Scan Tool (MUT-II)
STEP 1. Using scan tool MB991502, check data list item 02:
Set Switch, item 03: Resume Switch.
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991502 to data reading mode for auto-
cruise control system item 02, Set Switch.
• When "SET" switch is at the ON position, the display on
scan tool MB991502 should be "ON."
• When "SET" switch is at the OFF position, the display
on scan tool MB991502 should be "OFF."
(4) Set scan tool MB991502 to data reading mode for auto-
cruise control system item 03, Resume Switch.
• When "RESUME" switch is at the ON position, the dis-
play on scan tool MB991502 should be "ON."
• When "RESUME" switch is at the OFF position, the dis-
play on scan tool MB991502 should be "OFF."
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?
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
NO : Go to Step 2.
STEP 2. Check auto-cruise control switch connector D-227
for looser, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connector and terminals in good condition?
YES : Go to Step 3.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
ACX02258AC
MB991502
16-PIN
AC205038AB
D-227
CONNECTOR: D-227
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