Mitsubishi Galant (2004+). Manual - part 931

 

  Index      Mitsubishi     Mitsubishi Galant - service repair manual 2004 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  929  930  931  932   ..

 

 

Mitsubishi Galant (2004+). Manual - part 931

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-541

STEP 6. Using scan tool MB991958, read the diagnostic 
trouble code (DTC).

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) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Test drive under the following conditions:

• Engine speed: 3000 − 5000r/min

• Engine load: 40% or more

• Drive a minimum of 3 seconds after the above condi-

tions have been met.

(5) After completing the test drive, read the DTC. Turn the 

ignition switch to the "LOCK" (OFF) position.

Q: Is DTC P0325 set?

YES : Retry the troubleshooting.
NO :  The inspection is complete.

AK303804AB

MB991910

DATA LINK
CONNECTOR

MB991824

MB991827

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-542

DTC P0335: Crankshaft Position Sensor Circuit

CAUTION

If DTC P0335 has been set, TCL related DTC 
U1120 is also set. After P0335 has been diag-
nosed, don't forget to erase DTC U1120.

1

2 3

1

2

3

4

1 2 3

100

99

92

91

93 94 95

96 97 98

101 102 103 104

105 106 107 108

109 110 111 112 113

AK303858

1

1

RED-

WHITE

RED

GREEN-RED

B-17X

MFI
RELAY

CRANKSHAFT
POSITION
SENSOR

B-119

(MU802064)

103

4

3

3

2

2

3

5 V

POWERTRAIN CONTROL
MODULE (PCM)

Crankshaft Position Sensor Circuit

113

B-22

B-119

B-119-1

RED-

WHITE

RED-

WHITE

BATTERY

1

2

BROWN

B-119-1

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-543

.

CIRCUIT OPERATION

• The crankshaft position sensor power is supplied 

from the MFI relay (terminal No. 4).

• Terminal No. 3 of the crankshaft position sensor 

is grounded with PCM (terminal No. 113).

• A 5-volt voltage is applied on the crankshaft posi-

tion sensor output terminal (terminal No. 2) from 
the PCM (terminal No. 103). The crankshaft posi-
tion sensor generates a pulse signal when the 
output terminal is opened and grounded.

.

TECHNICAL DESCRIPTION

• The crankshaft position sensor detects the crank 

angle (position) of each cylinder, and converts 
that data to pulse signals, then which are input to 
the PCM.

• When the engine is running, the crankshaft posi-

tion sensor outputs a pulse signal.

• The PCM checks whether pulse signal is input 

while the engine is cranking.

.

DESCRIPTIONS OF MONITOR METHODS

• Crankshaft position sensor signal does not 

change.

• Crankshaft position sensor signal is not normal 

pattern.

.

MONITOR EXECUTION
Continuous

.

MONITOR EXECUTION CONDITIONS (Other 
monitor and Sensor)

Other Monitor (There is no temporary DTC stored 

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be 

normal)

• Not applicable

.

AK301954AC

CONNECTOR: B-119-1

B-119-1 (GR)

CRANKSHAFT
POSITION
SENSOR

AK303859AB

CONNECTOR: B-119

CRANKSHAFT
POSITION SENSOR
INTERMEDIATE 
CONNECTOR

GENERATOR

B-119 (GR)

AK303803AB

CONNECTOR: B-17X

MFI RELAY

B-17X

AK303043

CONNECTOR: B-22

B-22 (B)

PCM

AB

AIR CLEANER

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-544

DTC SET CONDITIONS <Circuit continuity>

Logic Flow Chart

Check Conditions

• Engine is being cranked.

Judgment Criteria

• Crankshaft position sensor output voltage has not 

changed (no pulse signal is input) for 2 seconds.

.

START

MONITORING
CONDITIONS

END

NO

NO

NO

YES

YES

YES

MALFUNCTION

GOOD

OUTPUT SIGNAL

CHANGES

CONTINUOUS

FAILURE FOR 2secs

AK302034

 

 

 

 

 

 

 

Content   ..  929  930  931  932   ..