Mitsubishi Grandis. Manual — part 280
SPECIAL TOOL
HEATER, AIR CONDITIONER AND VENTILATION
55-5
SPECIAL TOOL
M1551000600085
SPECIAL TOOL
HEATER, AIR CONDITIONER AND VENTILATION
55-6
Tool
Number
Name
Use
MB991367
Special spanner
Removal and installation
of air conditioner
compressor armature
mounting nut
MB991386
Pin
MB991658
Test harness
Inspection of the A/C
pressure sensor
B991367
MB991658
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-7
TROUBLESHOOTING
DIAGNOSIS TROUBLESHOOTING FLOW
M1554004700168
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
DIAGNOSIS FUNCTION
M1554004800187
HOW TO READ DIAGNOSIS CODE
Connect the MUT-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
MB991955
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826
MUT-III sub-assembly
A: V. C. I. (Vehicle
Communication
Interface)
B: USB cable
C: MUT-III main harness
A (applicable to vehicles
with CAN
communication)
D: MUT-III main harness
B (applicable to vehicles
without CAN
communication)
E: Measurement adapter
F: Trigger harness
Check the air conditioner
(The MUT-III diagnosis
codes display, service
data display and
actuator test)
CAUTION
For vehicles with CAN
communication, use
MUT-III main harness A
to send simulated
vehicle speed. If you
connect MUT-III main
harness B instead, the
CAN communication
does not function
correctly.
Tool
Number
Name
Use
MB991910
MB991826
MB991955
MB991911
MB991824
MB991827
MB991825
A
B
C
D
E
F
DO NOT USED
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-8
DIAGNOSIS CODE CHART
M1554004900258
Code No.
Diagnostic item
Reference page Service data
display
contents when
diagnosis code
is set
B1001
Interior temperature sensor system (short circuit)
<LHD>
25
°C
Interior temperature sensor system (short circuit)
<RHD>
B1002
Interior temperature sensor system (open circuit)
<LHD>
Interior temperature sensor system (open circuit)
<RHD>
B1011
Ambient temperature sensor system (short circuit)
<LHD>
20
°C
Ambient temperature sensor system (short circuit)
<RHD>
B1012
Ambient temperature sensor system (open circuit)
<LHD>
Ambient temperature sensor system (open circuit)
<RHD>
B1021
Air thermo sensor system (short circuit) <LHD>
−6°C
Air thermo sensor system (short circuit) <RHD>
B1022
Air thermo sensor system (open circuit) <LHD>
Air thermo sensor system (open circuit) <RHD>
B1041
Potentiometer system for front air mix damper (short to
power supply) <LHD>
Moved to MAX
HOT position
Potentiometer system for front air mix damper (short to
power supply) <RHD>
B1042
Potentiometer system for front air mix damper (short to
earth or open circuit) <LHD>
Potentiometer system for front air mix damper (short to
earth or open circuit) <RHD>
B1045
Motor drive system for front air mix damper
−
B1051
Potentiometer system for rear air mix damper (short to
power supply) <vehicles with LHD dual automatic A/C>
Moved to MAX
HOT position
Potentiometer system for rear air mix damper (short to
power supply) <vehicles with RHD dual automatic A/C>
B1052
Potentiometer system for rear air mix damper (short to
earth or open circuit) <vehicles with LHD dual
automatic A/C>
Potentiometer system for rear air mix damper (short to
earth or open circuit) <vehicles with RHD dual
automatic A/C>
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