Mitsubishi Galant 9G. Manual — part 297
ON-VEHICLE SERVICE
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-264
FAN CONTROL RELAY CONTINUITY CHECK
IDLE-UP OPERATION CHECK
M1552001600401
<2.4 L engine>
1. Before inspection and adjustment, set vehicle in the
following condition:
• Engine coolant temperature: 80 − 90 °C (176.0 − 194.0 °F)
• Lights, electric cooling fan and accessories: OFF
• Transmission: Neutral ("N" or "P" position)
• Steering wheel: Straightforward
2. Check whether or not the idle speed is the standard value.
Refer to GROUP 11A, On-vehicle Service
− Idle Speed
Standard value: 700
± 50 r/min
3. Turn on the air conditioning switch and the blower speed
selection dial. Engine idling speed should be within the
standard value:
Standard value: 700
± 50 r/min
NOTE: It is not necessary to make an adjustment, because
the idling speed is automatically adjusted by the ISC sys-
tem. If, however, a deviation from the standard value occurs
for some reason, check the ISC system. (Refer to GROUP
11A, On-vehicle Service
−
Idle Speed Check
BATTERY
VOLTAGE
TESTER
CONNECTION
SPECIFIED
CONDITION
Not applied
3
− 4
Open circuit
• Connect
terminal 2 to the
positive battery
terminal
• Connect
terminal 1 to the
negative battery
terminal
3
− 4
Less than 2 ohms
AC306658
FAN CONTROL RELAY
AB
4
1
2
3
3
1
4
2
ON-VEHICLE SERVICE
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-265
<3.8 L engine>
1. Before inspection and adjustment, set vehicle in the
following condition:
• Engine coolant temperature: 80 − 90 °C (176.0 − 194.0 °F)
• Lights, electric cooling fan and accessories: OFF
• Transmission: Neutral ("N" or "P" position)
• Steering wheel: Straightforward
2. Check whether or not the idle speed is the standard value.
Refer to GROUP 11C, On-vehicle Service
− Idle Speed
.
Standard value: 680
± 50 r/min
3. Turn on the air conditioning switch and the blower speed
selection dial. Engine idling speed should be within the
standard value:
Standard value: 680
± 50 r/min
NOTE: The powertrain control module determines whether
the A/C load is low or high according to the output signal
from the A/C-ECU.
NOTE: It is not necessary to make an adjustment, because
the idling speed is automatically adjusted by the ISC sys-
tem. If, however, a deviation from the standard value occurs
for some reason, check the ISC system. (Refer to GROUP
11C, On-vehicle Service
−
HEATER CONTROL ASSEMBLY AND A/C SWITCH
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-266
HEATER CONTROL ASSEMBLY AND A/C SWITCH
REMOVAL AND INSTALLATION
M1552002400369
INSPECTION
M1552014301146
BLOWER SWITCH CONTINUITY CHECK
AC306519
1
2
3
AB
<LOW TYPE>
AC306801
1
2
3
AB
<LOW TYPE>
REMOVAL STEPS
1.
CENTER PANEL ASSEMBLY
(REFER TO GROUP 52A,
INSTRUMENT PANEL
2.
KNOB
3.
HEATER CONTROL (A/C-ECU)
REMOVAL STEPS (Continued)
SWITCH
POSITION
TESTER CONNECTION
(CONNECTOR A)
SPECIFIED
CONDITION
0 (OFF)
1
− 4, 2− 4, 4 − 5, 4 − 6
Open circuit
1 (LO)
1
− 4
Less than 2 ohms
2 (ML)
4
− 6
Less than 2 ohms
3 (MH)
2
− 4
Less than 2 ohms
4 (HI)
4
− 5
Less than 2 ohms
AC306526
1
3 4 5 6
2
HEATER UNIT, HEATER CORE, BLOWER ASSEMBLY AND EVAPORATOR UNIT
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-267
HEATER UNIT, HEATER CORE, BLOWER ASSEMBLY AND
EVAPORATOR UNIT
REMOVAL AND INSTALLATION
M1552021400012
WARNING
•
Before removing the front seat assembly, refer to GROUP 52B, Service Precautions
and Air Bag Module and Clock Spring
•
When removing and installing the front passenger seat, be sure to carry out accuracy
check occupant classification sensor after the seat has been installed in the vehicle.
(Refer to GROUP 52B, On-Vehicle Service
Pre-removal and Post-installation Operation
• Refrigerant draining and Refilling (Refer to Charging and
Discharging
• Engine coolant Draining and Refilling (Refer to GROUP
00, Engine coolant
• Instrument Panel Removal and Installation (Refer to
GROUP 52A, Instrument Panel
).
• Steering Column Shaft Assembly Removal and Installa-
tion (Refer to GROUP 37A, Steering Shaft
).
• Floor Console Removal and Installation (Refer to GROUP
52A, Floor Console
• Front Seat Assembly Removal and Installation (Refer to
GROUP 52A, Front Seat
² Strut Tower Bar (Refer to GROUP 42, Removal And
Installation
AC306290
1
2
3
4
N
5
6
7
AC
2, 3
A/C compressor oil:
SUN PAG 56
-Pipe coupling
4
4.9 ± 0.9 N·m
43 ± 8 in-lb
22 ± 4 N·m
16 ± 3 ft-lb
22 ± 4 N·m
16 ± 3 ft-lb
12 ± 2 N·m
102 ± 22 in-lb
12 ± 2 N·m
102 ± 22 in-lb
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