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Mitsubishi Galant (2004+). Manual - part 1065

ACTUATOR TEST REFERENCE TABLE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1077

RADIAT.
FAN HI

Radiator
fan, A/C
condenser
fan

Drive the fan
motor

Ignition switch: "ON"

Radiator fan
and
condenser
fan rotate at
high speed.

Procedure
No. 27

P.13A-
1018

RADIAT.
FAN LO

Radiator fan
and
condenser
fan rotate at
low speed.

TCA
FAIL
SAFE

Throttle
actuator
control
system

Stop the
throttle
actuator
control motor

Ignition switch: "ON"

Throttle
valve is
opened
slightly

Code No.
P0638

P.13A-
782

MUT-III SCAN
TOOL
DISPLAY

ITEM NO.

INSPECTION ITEM

DRIVE CONTENTS

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE NO.

REFERENCE
PAGE

CHECK AT THE POWERTRAIN CONTROL MODULE (PCM)

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1078

CHECK AT THE POWERTRAIN CONTROL MODULE (PCM)

M1131153600332

1. Disconnect the PCM connectors B-19, B-20,

B-21, B-22 and B-23, and connect check harness
special tool MB991923 between the PCM
connectors.

2. Measure the voltage between each check

harness connector terminal and check harness
connector ground terminal (No. 25 or No. 29).

TERMINAL VOLTAGE CHECK CHART
NOTE: *

: The average voltage through an analog voltmeter is described in this service manual (because the

average voltage is too stable to be shown on a digital voltmeter).
NOTE: *

: Vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF"

position but this is no problem for checks.

AK203309

4 3 2 1

7 6 5

9 8

11 10

14 13 12

18 17 16 15

24 23 22

29 28 27 26

34 33 32 31 30

38 37 36 35

43 42 41 40 39

54 53 52 51

62 61 60 59 58

69 68 67 66 65 64

75 74 73 72 71

82 81 80 79 78 77

104

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

127 126 125 124 123 122 121

133 132 131 130 129 128

140 139 138 137 136 135 134

146 145 144 143 142 141

153 152 151 150 149 148 147

Check Harness Special Tool MB991923 Connector Terminal Arrangement

TERMINAL NO. INSPECTION

ITEM

INSPECTION CONDITION (ENGINE
CONDITION)

NORMAL
CONDITION

Evaporative
emission
ventilation solenoid

Ignition switch: "ON"

B+

Carry out the actuator test to drive the solenoid
valve.

For
approximately 6
seconds 1 V or
less

Fan control relay
(high)

Ignition switch: "ON"

B+

Carry out the actuator test to revolve the fan at
low speed.

1 V or less

Fuel pump relay

Ignition switch: "ON"

B+

Engine: idling

1 V or less

Fan control relay
(low)

Ignition switch: "ON"

B+

Carry out the actuator test to revolve the fan at
low speed.

1 V or less

Sensor supplied
voltage

Ignition switch: "ON"

4.9

− 5.1 V

68
23

Fuel tank
differential
pressure sensor

Engine: idling

1.2

− 3.8 V

Accelerator pedal
position sensor
(main)

Ignition switch:
"ON"

Release the accelerator
pedal

0.7

− 1.3 V

Depress the accelerator
pedal fully

4.0 V or more

Accelerator pedal
position sensor
(sub)

Ignition switch:
"ON"

Release the accelerator
pedal

0.4

− 1.0 V

Depress the accelerator
pedal fully

3.7 V or more

CHECK AT THE POWERTRAIN CONTROL MODULE (PCM)

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1079

Power supply
voltage applied to
accelerator pedal
position sensor
(main)

Ignition switch: "ON"

4.9

− 5.1 V

Fuel tank
temperature
sensor

Ignition switch:
"ON"

When fuel tank temperature
is 0

°C (32°F)

2.7

− 3.1 V

When fuel tank temperature
is 20

°C (68°F)

2.1

− 2.5 V

When fuel tank temperature
is 40

°C (104°F)

1.6

− 2.0 V

When fuel tank temperature
is 80

°C (176°F)

0.8

− 1.2 V

Backup power
supply

Ignition switch: "LOCK" (OFF)

B+

Ignition switch-IG

Ignition switch: "ON"

B+

Power supply

Ignition switch: "ON"

B+

64
52

MFI relay (power
supply)

Ignition switch: "LOCK" (OFF)

B+

Ignition switch: "ON"

1 V or less

Power steering
pressure switch

Engine: warming
up, idling

When steering wheel is not
turned

B+

When steering wheel is
turned

1V or less

A/C compressor
clutch relay

• Engine: idling

• A/C switch: OFF→ ON (A/C compressor is

operating)

B+

→ 1 V or less

as A/C clutch
cycles

Ignition switch-ST

Engine: cranking

8 V or more

Cylinder 2, 3
heated oxygen
sensor (front)

Engine: warming up, 2,500 r/min

⇔ 0.8 V

(changes
repeatedly)

Cylinder 1, 4
heated oxygen
sensor (front)

Engine: warming up, 2,500 r/min

⇔ 0.8 V

(changes
repeatedly)

TERMINAL NO. INSPECTION

ITEM

INSPECTION CONDITION (ENGINE
CONDITION)

NORMAL
CONDITION

CHECK AT THE POWERTRAIN CONTROL MODULE (PCM)

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1080

Engine coolant
temperature
sensor

Ignition switch:
"ON"

When engine coolant
temperature is

−20°C (−4°F)

3.9

− 4.5 V

When engine coolant
temperature is 0

°C (32°F)

3.2

− 3.8 V

When engine coolant
temperature is 20

°C (68°F)

2.3

− 2.9 V

When engine coolant
temperature is 40

°C (104°F)

1.3

− 1.9 V

When engine coolant
temperature is 60

°C (140°F)

0.7

− 1.3 V

When engine coolant
temperature is 80

°C (176°F)

0.3

− 0.9 V

Power supply
voltage applied to
throttle position
sensor

Ignition switch: "ON"

4.9

− 5.1 V

Cylinder 2, 3
heated oxygen
sensor (rear)

• Engine: warming up

• Revving

0 and 0.6

− 1.0 V

alternates

Cylinder 1, 4
heated oxygen
sensor (rear)

• Engine: warming up

• Revving

0 and 0.6

− 1.0 V

alternates

Throttle position
sensor (sub)

• Remove the

intake air hose
at the throttle
body

• Disconnect the

throttle position
sensor
connector, and
then connect
terminal
numbers No. 3,
No. 4, No. 5 and
No. 6 with the
use of the
special tool:
MB991658.

• Ignition switch:

"ON"

Fully close the throttle valve
with your finger

2.2

− 2.8 V

Fully open the throttle valve
with your finger

4.0 V or more

TERMINAL NO. INSPECTION

ITEM

INSPECTION CONDITION (ENGINE
CONDITION)

NORMAL
CONDITION

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