Mitsubishi Montero Sport (2004+). Manual - part 148

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-5

Items Indicated by the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp)

DTC NO.

ITEMS

−

Powertrain control module (PCM) malfunction

P0101*

Volume airflow circuit range/performance problem

P0102*

Volume airflow circuit low 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

P0121*

Throttle position sensor circuit range/performance problem

P0122*

Throttle position sensor circuit low input

P0123*

Throttle position sensor 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)

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)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-6

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

P0300

Random/multiple cylinder misfire detected

P0301

Cylinder 1 misfire detected

P0302

Cylinder 2 misfire detected

P0303

Cylinder 3 misfire detected

P0304

Cylinder 4 misfire detected

P0305

Cylinder 5 misfire detected

P0306

Cylinder 6 misfire detected

P0335*

Crankshaft position sensor circuit

P0340*

Camshaft position sensor circuit

P0401

EGR flow insufficient detected

P0403

EGR 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 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

DTC NO.

ITEMS

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-7

NOTE: If the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates 
because of a malfunction of the powertrain control module (PCM), transmission between scan tool and the 
PCM is impossible. In this case, the diagnostic trouble code cannot be read.
NOTE: After the PCM has detected a malfunction, the Malfunction Indicator Lamp (SERVICE ENGINE 
SOON or Check Engine Lamp) illuminates when the engine is next turned on and the same malfunction is 
re-detected. However, for items marked with a "*" in the DTC NO. column, the Malfunction Indicator Lamp 
(SERVICE ENGINE SOON or Check Engine Lamp) illuminates only on the first detection of the malfunction.
NOTE: After the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates, 
it will be switched off under the following conditions.

.

•

When the PCM monitored the power train malfunction three times* and met set condition requirements, it 
detected no malfunction. *: In this case, "one time" indicates from engine start to stop.

•

For misfiring or a fuel trim malfunction, when driving conditions (engine speed, engine coolant tempera-
ture, etc.) are similar to those when the malfunction was first recorded.

NOTE: Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates the 
sensor mounted at the position second closest to the engine.
NOTE: Bank 1 indicates the right bank side cylinder, and bank 2 indicates the left bank side cylinder.

P0554

Power steering pressure sensor circuit intermittent

P0705

Transmission range switch circuit malfunction (RPNDL 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

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

P1603*

Battery backup circuit malfunction

P1751

A/T control relay malfunction

P2227*

Barometric pressure sensor circuit range/performance problem

P2228*

Barometric pressure sensor circuit low input

P2229*

Barometric pressure sensor circuit high input

DTC NO.

ITEMS

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-8

HOW TO CONNECT THE SCAN TOOL (MUT-III)

Required Special Tools:

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I

• MB991827: USB Cable

• MB991911: Main Harness B

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
1. Ensure that the ignition switch is at the "LOCK" (OFF) 

position.

2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824 

and the personal computer.

4. Connect special tool MB991911 to special tool MB991824.
5. Connect special tool MB991911 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON" 

position.
NOTE: When the special tool MB991824 is energized, spe-
cial tool MB991824 indicator light will be illuminated in a 
green color.

7. Start the MUT-Ill system on the personal computer.

NOTE: Disconnecting the scan tool MB991958 is the 
reverse of the connecting sequence, making sure that the 
ignition switch is at the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC 
TROUBLE CODE

.

Required Special Tools:

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I

• MB991827: USB Cable

• MB991911: Main Harness B

AK303629AB

MB991911

MB991827

MB991824 

16-PIN