Mitsubishi Montero (2002-2004). Manual — part 840
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-23
STEP 11. Check the harness for damage between auto-
cruise control switch connector D-227 terminal 3 and PCM
connector D-136 terminal 146.
Q: Is the harness wire in good condition?
YES : Go to Step 5.
NO : Repair or replace the harness wire.
DTC 21: Cancel Latch Signal System
.
DTC SET CONDITIONS
The PCM communicates cancellation retention infor-
mation between the two microprocessors. This DTC
is set when cancellation retention information con-
tains inconsistency.
.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
Malfunction of the PCM.
DIAGNOSIS
.
Replace the PCM. (Refer to
.) Check that diagnostic
trouble code 21 is not set.
AC205038AB
D-227
CONNECTOR: D-227
AC205040
CONNECTOR: D-136
PCM
AB
D-136(GR)
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-24
DTC 22: Stoplight Switch System
AC204904AB
Stoplight Switch System Circuit
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-25
AC205041
CONNECTORS: D-28, D-29
D-28
D-29
AB
D-28
D-29
AC205042
CONNECTOR: D-116
D-116
AB
1
2
3
4
AC204682AB
CONNECTOR: D-123
D-123
AC205043
CONNECTOR: D-125
D-125
AB
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-26
.
CIRCUIT OPERATION
• Battery positive voltage is supplied to the stop-
light switch (terminal 2 and 3).
• When the brake pedal is depressed, battery posi-
tive voltage is applied to the PCM (terminal 39
and 54).
.
DTC SET CONDITIONS
Check Condition
• The auto-cruise control indicator light illuminates.
Judgement Criteria
• Short in stop light switch circuit
• Open circuit in the brake switch circuit (between
PCM terminal 54 and ground)
.
TROUBLESHOOTING HINTS (The most likely
causes for this case:)
• Malfunction of the stoplight switch.
• Damaged harness or connector.
• Malfunction of the PCM.
DIAGNOSIS
.
Required Special Tools:
• MB991223: Harness Set
• MB991502: Scan Tool (MUT-II)
STEP 1. Check the brake pedal height.
Refer to GROUP 35A, On-vehicle Service
− Brake Pedal
Check and Adjustment
Q: Is the height adjusted properly?
YES : Go to Step 2.
NO : Adjust the brake pedal to the proper height.
AC205046
CONNECTOR: D-133
D-133(GR)
PCM
AB
AC205044
6
1
7
2
9
8
10
3
5
12
11
4
1314
38
28
16
33
22
10
31
19
7
1
18
30
29
17
5
6
21
20
32
8
2
9
25
13
3
24
23
3435
1112
27
26
3637
14
4
15
CONNECTORS: E-110, E-111
E-111
E-110
E-111
E-110
AB
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