Mitsubishi Montero (2002-2004). Manual — part 99
AUTO A/C DIAGNOSIS
TSB Revision
AUTOMATIC AIR CONDITIONING
55B-89
STEP 5. Check the wiring harness between outside/inside
air selection damper control motor connector D-10
(terminal 1) and the ignition switch (IG2).
NOTE: Also check joint connector (6) D-01, junction block con-
nectors D-210 and C-208. If joint connector (6) D-01, junction
block connector D-210 or C-208 is damaged, repair or replace
the connector as described in GROUP 00E, Harness Connec-
tor Inspection
.
Q: Is the wiring harness between outside/inside air
selection damper control motor connector D-10
(terminal 1) and the ignition switch (IG2) in good
condition?
YES : Check that the outside/inside air selection damper
control motor works normally.
NO : Repair the wiring harness. Check that the outside/
inside air changeover damper control motor works
normally.
AC204171
CONNECTOR : D-10
AO
HARNESS SIDE
1
3 2
AC204170
CONNECTOR: D-01
AB
9 10
8
6 7
31 32
30
29
18 19 20 21
5
4
2
1
3
27
26
24
23
25
12 13 14 15 16 17
28
11
22
33
AC204191
CONNECTORS : D-208, D-210
D-208
D-208
AZ
D-210
D-210
HARNESS SIDE
HARNESS SIDE
1
2
3
5
6
4
1
2
7 6
3
9
4
11
12
10
13
5
8
AUTO A/C DIAGNOSIS
TSB Revision
AUTOMATIC AIR CONDITIONING
55B-90
STEP 6. Check outside/inside air selection damper control
motor connector D-10 and A/C-ECU connector D-23 for
damage.
Q: Is outside/inside air selection damper control motor
connector D-10 and A/C-ECU connector D-23 in good
condition?
YES : Go to Step 7.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection
that the outside/inside air changeover damper control
motor works normally.
STEP 7. Check the wiring harness between outside/inside
air selection damper control motor connector D-10
(terminals 2 and 3) and A/C-ECU D-23 (terminals 4 and 3).
Q: Is the wiring harness between outside/inside air
selection damper control motor connector D-10
(terminals 2 and 3) and A/C-ECU D-23 (terminals 4 and
3) in good condition?
YES : Got to Step 8.
NO : Repair the wiring harness. Check that the outside/
inside air selection damper control motor works
normally.
AC204171
CONNECTOR : D-10
AO
HARNESS SIDE
1
3 2
AC204170
CONNECTOR : D-23
D-23(B)
D-23(B)
CP
HARNESS
SIDE
1
3
4
2
12
1413
11
6
7
8
10 9
18
19
20
16
17
5
15
AC204171
CONNECTOR : D-10
AO
HARNESS SIDE
1
3 2
AC204170
CONNECTOR : D-23
D-23(B)
D-23(B)
CP
HARNESS
SIDE
1
3
4
2
12
1413
11
6
7
8
10 9
18
19
20
16
17
5
15
AUTO A/C DIAGNOSIS
TSB Revision
AUTOMATIC AIR CONDITIONING
55B-91
STEP 8. Check the flexible flat cable (FFC).
(1) The FCC is connected to the automatic air conditioning
control panel assembly. Check that the FCC connection is
contaminated with foreign material or loose (Refer to
(2) There should be continuity across the FFC terminals.
Q: Is the FFC normal?
YES : Go to Step 9.
NO : Repair the FFC. (Refer to
.) Check that the
outside/inside air selection damper control motor
works normally.
STEP 9. Check the inside/outside air changeover switch.
There should be continuity between terminals 8 and 13 while
the inside/outside air changeover switch is pushed.
Q: Is the check result normal?
YES : Replace the A/C-ECU. Check that the outside/inside
air selection damper control motor works normally.
NO : Replace the automatic air-conditioning control panel.
Check that the outside/inside air selection damper
control motor works normally.
AC205264AB
AC205403
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
AG
AUTO A/C DIAGNOSIS
TSB Revision
AUTOMATIC AIR CONDITIONING
55B-92
INSPECTION PROCEDURE 8: Rear Defogger does not Operate.
Defogger Circuit
AC204170
CONNECTORS : D-23, D-28
DW
D-28
D-23(B)
AC204171
CONNECTOR : D-111
AG
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