Mitsubishi Montero Sport (2004+). Manual — part 114
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-51
STEP 7. Check the harness wire between PCM connector
C-91 (terminal No.79) and auto-cruise control-ECU
connector C-35 (terminal No.2) for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Is the harness wire between PCM connector C-91
(terminal No.79) and auto-cruise control-ECU connector
C-35 (terminal No.2) damaged?
YES : Repair the damaged harness wire. Then go to Step
10 .
NO : Go to Step 8 .
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
AC202188
PCM
78
72
90
73
81
74
80
93 92
84 83
95 94
82
85
75
86
96
88
76
89
77
97
87
98
6
79
91
CONNECTOR: C-91
C-91 (GR)
AB
89
98
88
97
76 77
87
86
83
94
84
95
85
96
80
92
81
93
79
78
90 91
82
74
71 72 73
75
C-91: HARNESS CONNECTOR
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-52
STEP 8. 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 and the
auto-cruise control main switch to the "ON" position.
(3) Measure the voltage between auto-cruise control-ECU
connector C-35 terminal 2 and ground by backprobing.
• Voltage should measure between 4.0 and 5.5 volts.
(When accelerator pedal is depressed).
• Voltage should measure between 2.5 volts or less.
(When accelerator pedal is released).
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Are the voltage within specifications?
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 9 .
STEP 9. Check the diagnostic trouble codes.
Q: Is DTC 17 set?
YES : Replace the auto-cruise control-ECU. (Refer to
). Then go to Step 10 .
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
).
STEP 10. Check the diagnostic trouble codes.
Q: Is DTC 17 set?
YES : Return to Step 1 .
NO : This procedure is complete.
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
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
AC201986
C-35 HARNESS CONNECTOR:
HARNESS SIDE
AC
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-53
SYMPTOM CHART
M1172002300418
SYMPTOM
INSPECTION
PROCEDURE
NO.
REFERENCE
PAGE
Communication with scan tool
MB991958 is not possible
Communication with all systems is
not possible
-
GROUP 13A,
Symptom
Procedures -
Inspection
Procedure 1
Communication with auto-cruise
control-ECU only is not possible
1
Auto-cruise control is not
cancelled.
When brake pedal is depressed
2
When selector lever is moved to "N"
range
3
When "CANCEL" switch is turned
ON
4
Auto-cruise control cannot be set.
5
Hunting (repeated acceleration and deceleration) occurs at the set
vehicle speed.
6
Auto-cruise control indicator light inside combination meter does not
illuminate. (However, auto-cruise control is normal.)
7
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-54
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Communication with Scan Tool MB991958 is not Possible
(Communication with the Auto-cruise Control-ECU Only is not Possible.)
Auto-cruise Control-ECU Power Supply. Ground and Data Link Circuit
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