Mitsubishi Galant (2004+). Manual - part 1742

ON-BOARD DIAGNOSTICS

MULTIPORT FUEL SYSTEM (MFI) <2.4L ENGINE>

13A-11

P0335

Crankshaft position sensor circuit

×

P0340

Camshaft position sensor circuit

×

P0401

Exhaust gas recirculation flow insufficient detected

×

P0403

Exhaust gas recirculation control circuit

×

P0421

Warm up catalyst efficiency below threshold (cylinder 1, 4) 

×

P0431

Warm up catalyst efficiency below threshold (cylinder 2, 3) 

×

P0441

Evaporative emission control system incorrect purge flow

×

P0442

Evaporative emission control system leak detected (small leak)

×

P0443

Evaporative emission control system purge control valve circuit

×

P0446

Evaporative emission control system vent control circuit

×

P0451

Evaporative emission control system pressure sensor range/performance

×

P0452

Evaporative emission control system pressure sensor low input

×

P0453

Evaporative emission control system pressure sensor high input

×

P0455

Evaporative emission control system leak detected (gross leak)

×

P0456

Evaporative emission control system leak detected (very small leak)

×

P0461

Fuel level sensor (main) circuit range/performance

×

P0506

Idle control system RPM lower than expected

×

P0507

Idle control system RPM higher than expected

×

P0513

Immobilizer malfunction

−

P0551

Power steering pressure switch circuit range/performance

×

P0554

Power steering pressure switch circuit intermittent

×

P0606

Powertrain control module main processor malfunction

×

P0622

Generator field FR terminal circuit malfunction

−

P0638

Throttle actuator control motor circuit range/performance

×

P0642

Throttle position sensor power supply

×

P0657

Throttle actuator control motor relay circuit malfunction

×

P0705

Transmission range switch circuit malfunction (PRNDL input)

×

P0712

Transmission fluid temperature sensor circuit low input

×

P0713

Transmission fluid temperature sensor circuit high input

×

P0715

Input/turbine speed sensor circuit

×

P0720

Output speed sensor circuit

×

P0731

Gear 1 incorrect ratio

×

P0732

Gear 2 incorrect ratio

×

P0733

Gear 3 incorrect ratio

×

P0734

Gear 4 incorrect ratio

×

P0736

Gear R incorrect ratio

×

P0741

Torque converter clutch circuit performance or stuck off

×

DTC*

1

DIAGNOSTIC ITEM

MIL*

2

 ITEM

ON-BOARD DIAGNOSTICS

MULTIPORT FUEL SYSTEM (MFI) <2.4L ENGINE>

13A-12

.

Data List Function
The data list items are shown in the following table.
NOTE: Data list items consist of MUT-III items and GST items. GST items can be accessed through the use 
of a general scan tool.
NOTE: When MUT-III is used, MUT-III items appear alphabetically; then, GST items appear alphabetically. 
The black and white characters of the GST items are inverted from the MUT-III items.

P0742

Torque converter clutch circuit stuck on

×

P0743

Torque converter clutch circuit electrical

×

P0753

Shift solenoid "A" electrical

×

P0758

Shift solenoid "B" electrical

×

P0763

Shift solenoid "C" electrical

×

P0768

Shift solenoid "D" electrical

×

P1020

Mitsubishi innovative valve timing and lift electronic control system (MIVEC) 
performance problem

×

P1021

Engine oil control valve circuit

×

P1601

Communication malfunction (between PCM and throttle actuator control unit)

×

P1603

Battery backup line malfunction

×

P1751

A/T control relay malfunction

×

P2066

Fuel level sensor (sub) circuit range/performance

×

P2100

Throttle actuator control motor circuit (open)

×

P2101

Throttle actuator control motor magnet malfunction

×

P2102

Throttle actuator control motor circuit (shorted low)

×

P2103

Throttle actuator control motor circuit (shorted high)

×

P2108

Throttle actuator control processor malfunction

×

P2122

Accelerator pedal position sensor (main) circuit low input

×

P2123

Accelerator pedal position sensor (main) circuit high input

×

P2127

Accelerator pedal position sensor (sub) circuit low input

×

P2128

Accelerator pedal position sensor (sub) circuit high input

×

P2135

Throttle position sensor (main and sub) range/performance problem

×

P2138

Accelerator pedal position sensor (main and sub) range/performance problem

×

P2227

Barometric pressure circuit range/performance problem

×

P2228

Barometric pressure circuit low input

×

P2229

Barometric pressure circuit high input

×

U1073

Bus off

−

U1102

ABS-ECU time out

−

U1108

Combination meter-ECU time out

×

U1110

A/C-ECU time out

−

DTC*

1

DIAGNOSTIC ITEM

MIL*

2

 ITEM

ON-BOARD DIAGNOSTICS

MULTIPORT FUEL SYSTEM (MFI) <2.4L ENGINE>

13A-13

MUT-III Item

GST Item

MUT-III SCAN TOOL 
DISPLAY

ITEM NO.  INSPECTION ITEM

UNIT

A/C RELAY

49

A/C compressor clutch relay

ON/OFF

APP SNS (MAIN)

78

Accelerator pedal position sensor (main)

mV

APP SNSR (SUB)

77

Accelerator pedal position sensor (sub)

mV

BARO SENSOR

25

Barometric pressure sensor

kPa (in.Hg)

BATT VOLTAGE

16

Power supply voltage

V

CKP SENSOR

22

Crankshaft position sensor

r/min

CRANK. SIGNAL

18

Cranking signal (ignition switch-ST)

ON/OFF

ECT SENSOR

21

Engine coolant temperature sensor

°

C (

°

F)

EGR STEP. MTR.

68

EGR valve (stepper motor)

STEP

ENGINE LOAD

37

Engine load (volumetric efficiency)

%

FUEL TEMP

4A

Fuel tank temperature sensor

°

C (

°

F)

HO2S BANK1 S1

39

Cylinder 1, 4 heated oxygen sensor (front)

mV

HO2S BANK1 S2

69

Cylinder 1, 4 heated oxygen sensor (rear)

mV

HO2S BANK2 S1

11

Cylinder 2, 3 heated oxygen sensor (front)

mV

HO2S BANK2 S2

59

Cylinder 2, 3 heated oxygen sensor (rear)

mV

IAT SENSOR

13

Intake air temperature sensor

°

C (

°

F)

IG. TIMING ADV

44

Ignition coils and ignition power transistor

BTDC 

°

INJECTOR

41

Injectors

ms

MAF SENSOR

12

Mass airflow sensor

g/sec

MAP SENSOR

95

Manifold absolute pressure sensor

kPa (in.Hg)

PSP SWITCH

27

Power steering pressure switch

ON/OFF

TANK PRS. SNSR

73

Fuel tank differential pressure sensor

kPa (in.Hg)

TP LEARN MID

9A

Throttle position sensor (main) mid opening 
learning value

mV

TP SNSR (MAIN)

79

Throttle position sensor (main)

mV

TP SNSR (SUB)

14

Throttle position sensor (sub)

mV

MUT-III SCAN TOOL 
DISPLAY

ITEM NO.  INSPECTION ITEM

UNIT

ECT SENSOR

21

Engine coolant temperature sensor

°

C (

°

F)

ENGINE LOAD

87

Calculated load value

%

ENGINE SPEED

22

Crankshaft position sensor

r/min

HO2S BANK1 S1

A1

Cylinder 1, 4 heated oxygen sensor (front)

V

HO2S BANK1 S2

A2

Cylinder 1, 4 heated oxygen sensor (rear)

V

HO2S BANK2 S1

A3

Cylinder 2, 3 heated oxygen sensor (front)

V

HO2S BANK2 S2

A4

Cylinder 2, 3 heated oxygen sensor (rear)

V

IAT SENSOR

13

Intake air temperature sensor

°

C (

°

F)

IG. TIMING ADV

44

Ignition coils and ignition power transistor

deg

LONG TRIM B1

81

Cylinder 1, 4 long-term fuel trim

%

ON-BOARD DIAGNOSTICS

MULTIPORT FUEL SYSTEM (MFI) <2.4L ENGINE>

13A-14

.

Actuator Test Function
The actuator test items are shown in the following table.

LONG TRIM B2

83

Cylinder 2, 3 long-term fuel trim

%

MAP/MDP SNSR.

32

Manifold absolute pressure sensor

kPa (in. Hg)

SHORT TRIM B1

82

Cylinder 1, 4 short-term fuel trim

%

SHORT TRIM B2

84

Cylinder 2, 3 short-term fuel trim

%

SYS. STATUS B1

88

Cylinder 1, 4 fuel control system status

Closed loop/ 
Open circuit 
drive 
condition

SYS. STATUS B2

89

Cylinder 2, 3 fuel control system status

Closed loop/ 
Open circuit 
drive 
condition

TP SENSOR

8A

Throttle position sensor (main)

%

VAF/MAF SNSR.

12

Mass airflow sensor

gm/s

VSS

24

Vehicle speed signal

km/h (mph)

MUT-III SCAN TOOL 
DISPLAY

ITEM NO.  INSPECTION ITEM

UNIT

MUT-III SCAN TOOL 
DISPLAY

ITEM 
NO.

INSPECTION ITEM

ACTIVATING CONTENT

BASIC TIMING

17

Basic ignition timing

Set to ignition timing adjustment 
mode

EVAP PURG SOL

08

Evaporative emission purge 
solenoid

Solenoid valve turns from OFF to 
ON

EVAP VENT SOL 

29

Evaporative emission ventilation 
solenoid

Solenoid valve turns from OFF to 
ON

FUEL PUMP

07

Fuel pump

Fuel pump operates and fuel is 
recirculated

NO. 1 INJECTOR

01

Injectors

Cut fuel to No. 1 injector

NO. 2 INJECTOR

02

Cut fuel to No. 2 injector

NO. 3 INJECTOR

03

Cut fuel to No. 3 injector

NO. 4 INJECTOR

04

Cut fuel to No. 4 injector

OCV

22

Engine oil control valve

Engine oil control valve turns from 
OFF to ON

RADIAT. FAN HI

20

Radiator fan, A/C condenser fan

Drives the fan motor at high speed

RADIAT. FAN LO

21

Drives the fan motor at low speed

TCA FAIL SAFE

34

Throttle actuator control system

Throttle valve is opened slightly.