Mitsubishi Galant 9G. Manual — part 927
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-8
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
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
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)
DTC
ITEM
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-9
P0461
Fuel level sensor circuit range/performance (main)
P0462
Fuel level sensor circuit low input
P0463
Fuel level sensor circuit high input
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
P0603
EEPROM malfunction
P0606*
Powertrain control module main processor malfunction
P0630
VIN 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 (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
P1530
A/C1 switch circuit intermittent
P1602*
Communication malfunction (between PCM main processor and system LSI)
P1603*
Battery backup line malfunction
P1751*
A/T control relay malfunction
P2066
Fuel level sensor circuit range/performance (sub)
P2100*
Throttle actuator control motor circuit (open)
P2101*
Throttle actuator control motor magneto malfunction
P2122*
Accelerator pedal position sensor (main) circuit low input
P2123*
Accelerator pedal position sensor (main) circuit high input
DTC
ITEM
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-10
NOTE: If the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates
because of a malfunction of the powertrain control module (PCM), communication between the scan tool
MB991958 (MUT-III sub assembly) and the PCM is impossible. In this case, the diagnostic trouble code can-
not 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 powertrain malfunction three times* and met set condition requirements, it
detected no malfunction. *: In this case, "one time" indicates from engine start to next engine start.
•
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.
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
U1108*
Combination meter time-out
DTC
ITEM
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-11
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
• MB991910: Main Harness A
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 MB991910 to special tool MB991824.
5. Connect special tool MB991910 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-III 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 CODES.
Required Special Tools:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: USB Cable
• MB991910: Main Harness A
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.
NOTE: If the battery voltage is low, diagnostic trouble codes will
not be set. Check the battery if scan tool MB991958 does not
display.
AC305412
AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
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