Mitsubishi Outlander (2003+). Manual — part 547
SPECIAL TOOL
AUTOMATIC AIR CONDITIONER
55B-3
MB991955
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826
MUT-III
sub-assembly
A: Vehicle
Communication
Interface (V. C. I.)
B: MUT-III USB
cable
C: MUT-III main
harness A (Vehicles
with CAN
communication
system)
D: MUT-III main
harness B (Vehicles
without CAN
communication
system)
E: MUT-III
measurement
adapter
F: MUT-III trigger
harness
Automatic A/C check
CAUTION
MUT-III main harness B
(MB991911) should be used.
MUT-III main harness A should
not be used for this vehicle.
MB991529
Diagnosis code
check harness
Automatic A/C check with a
voltmeter
Tool
Number
Name
Use
MB991910
MB991826
MB991955
MB991911
MB991824
MB991827
MB991825
A
B
C
D
E
F
DO NOT USED
MB991529
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-4
TROUBLESHOOTING
DIAGNOSIS TROUBLESHOOTING FLOW
M1554004700102
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
DIAGNOSIS FUNCTION
M1554004800176
How to read diagnosis code
Connect the MUT-II/III to the 16-pin diagnosis
connector to read diagnosis code (Refer to GROUP
00, How to Use Troubleshooting/Inspection Service
Points
).
How to erase diagnosis code
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
DIAGNOSIS CODE CHART
M1554004900140
MB991223
A: MB991219
B: MB991220
C: MB991221
D: MB991222
Harness set
A: Test harness
B: LED harness
C: LED harness
adapter
D: Probe
Continuity check and voltage
measurement at harness wire or
connector
A: For checking connector pin
contact pressure
B: For checking power supply
circuit
C: For checking power supply
circuit
D: For connecting a locally sourced
tester
Tool
Number
Name
Use
MB991223
Code No.
Diagnostic item
Reference page
11
Interior temperature senor system (open circuit)
12
Interior temperature sensor system (short circuit)
13
Outside thermo sensor system (open circuit)
14
Outside thermo sensor system (short circuit)
15
Heater water temperature sensor system (open circuit)
16
Heater water temperature sensor system (short circuit)
21
Air thermo sensor system (open circuit)
22
Air thermo sensor system (short circuit)
31
Air mixing damper control motor and potentiometer sensor system
32
Mode selection damper control motor and potentiometer sensor system
41
Air mixing damper control motor and potentiometer activating system
42
Mode selection damper control motor and potentiometer activating system
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-5
DIAGNOSTIC TROUBLE CODE PROCEDURES
Diagnosis code No.11, 12: Interior temperature sensor system
COMMENTS ON TROUBLE SYMPTOM
This code is set when the interior temperature sensor
circuit is open (Code No.11) or is short (Code No.12).
Possible causes
•
Malfunction of the interior temperature sensor
•
Damaged the wiring harness or connectors
•
Malfunction of the automatic air conditioner
control panel (A/C-ECU)
DIAGNOSIS
Step 1. Check the interior temperature sensor.
Refer to
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Replace the interior temperature sensor.
A/C-ECU
INTERIOR
TEMPERATURE
SENSOR
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Interior Temperature Sensor Circuit
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-6
Step 2. Connector check: C-27 A/C-ECU
connector and C-127 interior temperature sensor
connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the connector.
Step 3. Check the wiring harness between C-27
A/C-ECU connector (terminals 1 and 20) and
C-127 interior temperature sensor connector
(terminals 2 and 1).
•
Check the sensor signal line and earth line for
open or short circuit.
Q: Is the check result normal?
YES :
Replace the automatic air conditioner
control panel (A/C-ECU)
NO :
Repair the wiring harness.
AC301397
Connector: C-27
<LHD>
AX
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC308735
Connector: C-27 <RHD>
AY
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC301395AT
Connector: C-127 <LHD>
Harness side
2 1
AC308769
BB
Connector: C-127 <RHD>
Harness side
2 1
AC301397
Connector: C-27
<LHD>
AX
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC308735
Connector: C-27 <RHD>
AY
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC301395AT
Connector: C-127 <LHD>
Harness side
2 1
AC308769
BB
Connector: C-127 <RHD>
Harness side
2 1
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