Mitsubishi Lancer Evolution VI. Manual — part 126
FULL-AUTOMATIC AIR CONDITIONER –
Troubleshooting /
On-vehicle Service
55-56
Terminal
No.
Normal condition
Check condition
Check item
25
Air mix damper motor (MAX. HOT)
When damper is moved to MAX.
COOL position
Almost no voltage
(0.5 V)
When damper is moved to MAX. HOT
position
10 V
26
Inside/outside air changeover damper
motor (Outside)
When switch is set to inside air
position
10 V
When switch is set to outside air
position
Almost no voltage
(0.5 V)
28
IG
2
power supply
When ignition switch is ON
System voltage
29
Earth
At all times
Continuity
30
ILL power supply
When lighting switch is at ON
System voltage
34
A/C output
When A/C is OFF
0 V
When A/C is ON
System voltage
35
Earth
At all times
Continuity
ON-VEHICLE SERVICE
REFRIGERANT CHARGING, LEVEL CHECK,
ADDITION AND REMOVAL, PERFORMANCE
TEST, DUAL PRESSURE SWITCH SIMPLE
CHECK
Follow the same procedures as for the heater and manual
air conditioner. (Refer to P.55-6.)
FULL-AUTOMATIC AIR CONDITIONER –
On-vehicle Service
55-57
POWER RELAY CHECK
Follow the same procedures as for the heater and manual
air conditioner except for the following. (Refer to P.55-13.)
BLOWER HIGH SPEED RELAY
Battery voltage
Terminal No.
1
2
3
4
Power is not supplied
Power is supplied
IDLE-UP OPERATION CHECK
The idle-up inspection procedures are the same as for the
heater and manual air conditioner. (Refer to P.55-14.)
<Idle speed>
Standard value: 750
±
50 r/min
<Idle-up speed>
Standard value: 850
±
50 r/min
NOTE
If the idling speed is not within the standard value range,
adjust it.
Blower high speed relay
FULL-AUTOMATIC AIR CONDITIONER –
Damper Control Motor Assembly
and Power Transistor
55-58
DAMPER CONTROL MOTOR ASSEMBLY AND POWER
TRANSISTOR
REMOVAL AND INSTALLATION
1
2
3
4
5
6
7
Inside/outside air changeover
damper motor removal steps
D
Glove box, glove box frame
1. Linkage connection
2. Inside/outside air changeover
damper motor
Air outlet port changeover damper
motor removal steps
D
Instrument lower panel
3. Linkage connection
4. Air outlet port changeover damper
motor
Air mix damper motor removal
steps
D
Front floor console, console side cover
5. Linkage connection
6. Air mix damper motor
Power transistor removal steps
D
Glove box, glove box frame
7. Power transistor
FULL-AUTOMATIC AIR CONDITIONER –
Damper Control Motor Assembly
and Power Transistor
55-59
INSPECTION
INSIDE/OUTSIDE CHANGEOVER DAMPER MOTOR
CHECK
Battery connection
terminal
Lever operation
1
2
Moves to the outside air position
Moves to the inside air position
Caution
Cut off the battery voltage when the lever is in the stop
position.
AIR MIX DAMPER MOTOR CHECK
Motor
Battery connection
terminal
Lever operation
1
3
Moves to COOL position
Moves to HOT position
Caution
Cut off the battery voltage when the lever is in the stop
position.
Potentiometer
Check to ensure that the resistance value changes gradually
within the standard value range when the resistance value
is measured between connector terminals 2 and 5 or between
5 and 6 with the above inspection condition unchanged.
Standard value: Approx. 0.18 – 4.82 k
Ω
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