Mitsubishi Montero (2004+). Manual — part 615
REAR AIR CONDITIONING DIAGNOSIS
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-103
INSPECTION PROCEDURE 7: Air Outlet Vent Output cannot be Changed with Temperature Control
Switch. <Vehicles with Rear A/C>
Mode Selection Damper Control Motor Circuit
REAR AIR CONDITIONING DIAGNOSIS
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-104
DIAGNOSIS
STEP 1. Check that the rear air conditioning temperature
control functions normally.
Q: Does the rear air conditioning temperature control
function normally?
YES : Go to Step 2.
NO : Refer to rear air conditioning diagnosis Inspection
Procedure 4 "A/C Outlet Air Temperature does not
Increase <Vehicles with rear A/C>
AC204170
CONNECTOR : D-01
CX
AC204171
CONNECTOR : D-112
AU
AC204173
CONNECTORS : D-208, D-210
BF
D-208
D-210
AC204176
CONNECTOR : E-20
BG
AC204179
CONNECTOR : G-22
AX
AC204698 AS
CONNECTOR : G-22-3
REAR AIR CONDITIONING DIAGNOSIS
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-105
STEP 2. Measure the resistance at rear A/C unit connector
G-22.
(1) Disconnect rear A/C unit connector G-22, and measure at
the wiring harness side.
(2) Measure the resistance between terminal 3 and ground.
• Less than 2 ohms
Q: Does the measured resistance value correspond with
this range?
YES : Go to Step 5.
NO : Go to Step 3.
STEP 3. Check rear A/C unit connector G-22 for damage.
Q: Is rear A/C unit connector G-22 in good condition?
YES : Go to Step 4.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection
that the air conditioning works normally.
STEP 4. Check the wiring harness between rear A/C unit
connector G-22 (terminal 3) and ground.
Q: Is the wiring harness between rear A/C unit connector
G-22 (terminal 3) and ground in good condition?
YES : Check that the rear air conditioning works normally.
NO : Repair the wiring harness. Check that the rear air
conditioning works normally.
AC204179
CONNECTOR : G-22
AP
HARNESS SIDE
1
5
7
8
2
6
10
4
9
3
AC204738 CN
HARNESS SIDE : G-22
1
5
7
8
2
6
10
4
9
3
AC204179
CONNECTOR : G-22
AP
HARNESS SIDE
1
5
7
8
2
6
10
4
9
3
AC204179
CONNECTOR : G-22
AP
HARNESS SIDE
1
5
7
8
2
6
10
4
9
3
REAR AIR CONDITIONING DIAGNOSIS
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-106
STEP 5. Measure the voltage at rear A/C unit connector
G-22.
(1) Disconnect rear A/C unit connector G-22, and measure the
voltage at the harness side.
(2) Measure the voltage between terminal 4 and ground.
• The measured value should be approximately 12 volts
(battery positive voltage).
Q: Does the measured voltage correspond with this range?
YES : Go to Step 8.
NO : Go to Step 6.
STEP 6. Check rear A/C unit connector G-22 for damage.
Q: Is rear A/C unit connector G-22 in good condition?
YES : Go to Step 7.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection
that the rear air conditioning works normally.
STEP 7. Check the wiring harness between rear A/C unit
connector G-22 (terminal 4) and the ignition switch (IG2).
AC204179
CONNECTOR : G-22
AP
HARNESS SIDE
1
5
7
8
2
6
10
4
9
3
AC204738
HARNESS SIDE : G-22
CT
1
5
7
8
2
6
10
4
9
3
AC204179
CONNECTOR : G-22
AP
HARNESS SIDE
1
5
7
8
2
6
10
4
9
3
AC204179
CONNECTOR : G-22
AP
HARNESS SIDE
1
5
7
8
2
6
10
4
9
3
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