Mitsubishi Galant (2004+). Manual - part 1745

OTHER CONTROL FUNCTIONS

MULTIPORT FUEL SYSTEM (MFI) <3.8L ENGINE>

13B-9

OTHER CONTROL FUNCTIONS

M2132010000240

The following items are basically the same as those 
for the 3.8L engine insatlled in the ENDEAVOR.

•

Power Supply and Fuel Pump Conrol

•

Generator Control

•

Heated Oxygen Sensor Heater Control

•

A/C Compressor Clutch Relay Control

•

EVAP Emission Control

•

EGR Control

ON-BOARD DIAGNOSTIC

M2132009000279

The powertrain control module (PCM) has been pro-
vided with the following functions for easier system 
inspection.

.

Diagnostic Trouble Code and Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine 
Lamp) Function
The diagnostic trouble code and malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine 
Lamp) items are shown in the following table.
NOTE: *1:Diagnostic Trouble Code
NOTE: *2:Malfunction Indicator Lamp 

DTC*

1

DIAGNOSTIC ITEM

MIL*

2

 ITEM

−

Powertrain control module (PCM) malfunction

×

P0101

Mass airflow circuit range/performance problem

×

P0102

Mass airflow circuit low input

×

P0103*

Mass airflow circuit high input

×

P0106

Manifold absolute pressure circuit range/performance problem

×

P0107

Manifold absolute pressure circuit low input

×

P0108

Manifold absolute pressure circuit high input

×

P0111

Intake air temperature circuit range/performance problem

×

P0112

Intake air temperature circuit low input

×

P0113

Intake air temperature circuit high input

×

P0116

Engine coolant temperature circuit range/performance problem

×

P0117

Engine coolant temperature circuit low input

×

P0118

Engine coolant temperature circuit high input

×

P0122

Throttle position sensor (main) circuit low input

×

P0123

Throttle position sensor (main) circuit high input

×

P0125

Insufficient coolant temperature for closed loop fuel control

×

P0128

Coolant thermostat (Coolant temperature below thermostat regulating 
temperature)

×

P0130

Heated oxygen sensor circuit (bank 1 sensor 1)

×

P0131

Heated oxygen sensor circuit low voltage (bank 1 sensor 1)

×

P0132

Heated oxygen sensor circuit high voltage (bank 1 sensor 1)

×

P0133

Heated oxygen sensor circuit slow response (bank 1 sensor 1)

×

ON-BOARD DIAGNOSTIC

MULTIPORT FUEL SYSTEM (MFI) <3.8L ENGINE>

13B-10

P0134

Heated oxygen sensor circuit no activity detected (bank 1 sensor 1)

×

P0135

Heated oxygen sensor heater circuit (bank 1 sensor 1)

×

P0136

Heated oxygen sensor circuit (bank 1 sensor 2)

×

P0137

Heated oxygen sensor circuit low voltage (bank 1 sensor 2)

×

P0138

Heated oxygen sensor circuit high voltage (bank 1 sensor 2)

×

P0139

Heated oxygen sensor circuit slow response (bank 1 sensor 2)

×

P0141

Heated oxygen sensor heater circuit (bank 1 sensor 2)

×

P0150

Heated oxygen sensor circuit (bank 2 sensor 1)

×

P0151

Heated oxygen sensor circuit low voltage (bank 2 sensor 1)

×

P0152

Heated oxygen sensor circuit high voltage (bank 2 sensor 1)

×

P0153

Heated oxygen sensor circuit slow response (bank 2 sensor 1)

×

P0154

Heated oxygen sensor circuit no activity detected (bank 2 sensor 1)

×

P0155

Heated oxygen sensor heater circuit (bank 2 sensor 1)

×

P0156

Heated oxygen sensor circuit (bank 2 sensor 2)

×

P0157

Heated oxygen sensor circuit low voltage (bank 2 sensor 2)

×

P0158

Heated oxygen sensor circuit high voltage (bank 2 sensor 2)

×

P0159

Heated oxygen sensor circuit slow response (bank 2 sensor 2)

×

P0161

Heated oxygen sensor heater circuit (bank 2 sensor 2)

×

P0171

System too lean (bank 1)

×

P0172

System too rich (bank 1)

×

P0174

System too lean (bank 2)

×

P0175

System too rich (bank 2)

×

P0181

Fuel tank temperature sensor circuit range/performance

×

P0182

Fuel tank temperature sensor circuit low input

×

P0183

Fuel tank temperature sensor circuit high input

×

P0201

Injector circuit-Cylinder 1

×

P0202

Injector circuit-Cylinder 2

×

P0203

Injector circuit-Cylinder 3

×

P0204

Injector circuit-Cylinder 4

×

P0205

Injector circuit-Cylinder 5

×

P0206

Injector circuit-Cylinder 6

×

P0222

Throttle position sensor (sub) circuit low input

×

P0223

Throttle position sensor (sub) circuit high input

×

P0300

Random/multiple cylinder misfire detected

×

P0301

Cylinder 1 misfire detected

×

P0302

Cylinder 2 misfire detected

×

P0303

Cylinder 3 misfire detected

×

DTC*

1

DIAGNOSTIC ITEM

MIL*

2

 ITEM

ON-BOARD DIAGNOSTIC

MULTIPORT FUEL SYSTEM (MFI) <3.8L ENGINE>

13B-11

P0304

Cylinder 4 misfire detected

×

P0305

Cylinder 5 misfire detected

×

P0306

Cylinder 6 misfire detected

×

P0325

Knock sensor circuit

−

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 (bank 1) 

×

P0431

Warm up catalyst efficiency below threshold (bank 2) 

×

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 sensor circuit range/performance

×

P0554

Power steering pressure sensor 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 relaycircuit malfunction

×

P0705

Transmission range sensor 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

×

DTC*

1

DIAGNOSTIC ITEM

MIL*

2

 ITEM

ON-BOARD DIAGNOSTIC

MULTIPORT FUEL SYSTEM (MFI) <3.8L ENGINE>

13B-12

.

P0733

Gear 3 incorrect ratio

×

P0734

Gear 4 incorrect ratio

×

P0736

Gear R incorrect ratio

×

P0741

Torque converter clutch circuit performance or stuck off

×

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

×

P1601

Communication malfunction (between PCM and throttle actuator control 
module)

×

P1603

Battery backup circuit 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 magneto malfunction

×

P2102

Throttle actuator control motor circuit (shorted low)

×

P2103

Throttle actuator control motor circuit (shorted high)

×

P2108

Throttle actuator control module 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 error

−

U1102

ABS-ECU CAN communication time out

−

U1108*

Combination meter-ECU CAN communication time out

×

U1110

A/C-ECU CAN communication time out

−

DTC*

1

DIAGNOSTIC ITEM

MIL*

2

 ITEM