Mitsubishi Pajero Pinin. Manual - part 74

GDI  – 

Troubleshooting

13A-45

NG

Repair

OK

NG

Check the spark plug and the
ignition coil for a defective cylinder.
(Refer to GROUP 16 – Ignition
System.)

Check the trouble symptoms.

NG

Replace the engine-ECU.

OK

Check the harness wire between
the engine-ECU.

NG

Repair

OK

Check the following connector:
C-17

NG

Repair

OK

MUT-

II

 Actuator Test

01 No. 1 injector
02 No. 2 injector
03 No. 3 injector
04 No. 4 injector

OK: The idling condition should

change.

Reference
When the cylinder (defective
cylinder) where idling condition does
not change is detected after
suspending the injector, go to (1)
and inspect the spark plug, the
ignition coil, the connector, and the
harness of the defective cylinder.
(When more than one cylinder are
detected, inspect all of them.)
When all the cylinders are OK, go
to (2).

(1)

Check the following connectors:
Ignition coil connectors, which
correspond to defective cylinders
(A-09, A-10, A-11, A-12).

NG

Repair

Check the spark plug and the
ignition coil for a defective cylinder.
(Refer to GROUP 16 – Ignition
System.)

NG

Replace

OK

Use an analyzer to measure the signal waveform at engine-ECU connector C-17.



Engine: Idling



The voltage between the ignition coil primary signal terminal for a defective cylinder
and earth
OK: A normal waveform should be displayed as described on P.13A-84* (Inspec-

tion Procedure Using an Analyzer).

OK

Repair the ignition coil assembly for
a defective cylinder and the spark
plug.

NG

Replace the engine-ECU.

(2)

Use an analyzer to measure the
signal waveform at the ignition
failure sensor connector A-90.



Use test harness (MB991536) to
connect the connector, and
measure at the pick-up harness.



Engine: Idling



The voltage between terminal 2
and earth
OK: A normal waveform should

be displayed as described
on P.13A-84* (INSPEC-
TION PROCEDURE US-
ING AN ANALYZER).

Reference
When a normal waveform is
displayed, compare it with that of
the ignition coil primary signal at the
engine-ECU terminal to determine
the cylinder (defective cylinder) with
an abnormal waveform.

→

When one or more cylinders are

abnormal, go to (1)

→

When all of the cylinders are

abnormal, go to (3)

→

When a normal waveform is

displayed, go to (4).

(3)

NG

Repair

OK

NG

Repair

OK

Repair the ignition failure sensor.

(4)

Check the trouble symptoms.

OK

Intermittent malfunction 
(Refer to GROUP 00 – Points to
Note for Intermittent Malfunctions.)

(1)

Check the following connector:
C-18

Check the harness wires between
the ignition failure sensor and the
engine-ECU, and between the
ignition failure sensor and earth.

Check the harness wire between
the ignition coil connector for a
defective cylinder and the
intermediate connector.

NOTE
*:

Refer to the ’00 PAJERO PININ Workshop Manual (Pub. No. CKRE00E1)

GDI  – 

Troubleshooting

13A-46

Code No. P0301  No. 1 cylinder misfire detected

Code No. P0302  No. 2 cylinder misfire detected

Code No. P0303  No. 3 cylinder misfire detected

Code No. P0304  No. 4 cylinder misfire detected

Probable cause

Range of Check



The engine speed is 500 – 4,500 r/min.



While the engine is running except deceleration and sudden acceleration.

Set Conditions



The number of misfires exceeds a predetermined number per 200 engine
revolutions (Misfire has occurred in only one cylinder).

or



The number of misfires exceeds a predetermined number per 100 engine
revolutions (Misfire has occurred in only one cylinder).



Malfunction of the ignition system



Abnormal compression



Malfunction of injector



Malfunction of engine-ECU

NG

Check the harness wire between the
ignition coil and the engine-ECU.

NG

Replace

NG

Repair

(2) NG

OK

Check the ignition failure sensor
(Refer to GROUP 16 – Ignition
System.)

OK

Check the harness wire between
the ignition coil and the earth, and
repair if necessary.

(3) NG

OK

Measure at ignition coil connectors
A-09, A-10, A-11, A-12.



Disconnect the connector and
measure at the harness side.

(1) The voltage between terminal 1

and earth
(Ignition switch: ON)
OK: System voltage

(2) The voltage between terminal 3

and earth
(Engine: Cranking)
OK: 0.5  – 4.0 V

(3) The resistance between terminal

2 and earth
OK: 2 

Ω

 or less

(1) NG

Check the following connectors:
A-90, C-72, C-74

NG

Repair

Check the ignition coil (Refer to
GROUP 16 – Ignition System.)

Check the compression pressure.
(Refer to GROUP 11A – On-vehicle
Service.)

Repair

Replace the engine-ECU.

OK

Check the harness wire between the
ignition coil and the ignition failure
sensor, and between the ignition
switch and the ignition failure sensor.

NG

Repair

OK

NG

NG

Repair

OK

Replace

NG

Check the spark plugs.

Check the trouble symptoms.

OK

Check the trouble symptoms.

NG

Replace the engine-ECU.

Check the following connectors:
A-09, A-10, A-11, A-12

Check the following connector:
C-17

OK

GDI  – 

Troubleshooting

13A-47

Code No. P0325 Detonation sensor system

Probable cause

Range of Check



Engine: Two seconds after the engine has been started

Set Conditions



Changes in sensor output voltage (detonation sensor peak voltage per 1/3
crankshaft rotation) in 200 consecutive cycles are 0.08 V or less.



Malfunction of the detonation sensor



Open or short circuit in the detonation sensor
circuit or loose connector contact



Malfunction of engine-ECU

OK

Check the trouble symptoms.

OK

Intermittent malfunction 
(Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions.)

Check the following connector: A-81

NG

Repair

OK

Measure at the detonation sensor connector A-81.



Disconnect the connector and measure at the harness
side.



The resistance between terminal 2 and earth
OK: 2 

Ω

 or less

NG

Check the harness wire between the detonation sensor and
earth, and repair if necessary.

OK

Check the following connector: C-19

NG

Repair

OK

Check the harness wire between the detonation sensor and
the engine-ECU.

NG

Repair

NG

Replace the detonation sensor.

Check the trouble symptoms.

NG

Replace the engine-ECU.

Code No. P0335 Crank angle sensor system

Probable cause

Range of Check



Engine is cranking

Set Conditions



Sensor output voltage does not change for 4 seconds (no pulse signal
input).



Malfunction of the crank angle sensor.



Open or short circuit in the crank angle sensor
circuit or loose connector contact.



Malfunction of engine-ECU

GDI  – 

Troubleshooting

13A-48

OK

Check the trouble symptoms.

OK

Check the harness wire between the
crank angle sensor and the engine
control relay, and repair if necessary.

OK

Check the harness wire between
the crank angle sensor and the
engine-ECU, and repair if necessary.

OK

Intermittent malfunction 
(Refer to GROUP 00 – Points to
Note for Intermittent Malfunctions.)

OK

Measure at the crank angle sensor
connector A-77.



Disconnect the connector and
measure at the harness side.

(1) The resistance between terminal

1 and earth
OK: 2 

Ω

 or less

(2) The voltage between terminal 3

and earth
(Ignition switch: ON)
OK: 4.8  – 5.2 V

(3) The voltage between terminal 2

and earth
(Ignition switch: ON)
OK: System voltage

(1) NG

Check the harness between the
crank angle sensor and earth, and
repair if necessary.

NG

Repair

NG

Check the following connector:
C-18

NG

Repair

NG

Check the following connector:
A-77

NG

Repair

(2) NG

Measure at engine-ECU connector
C-18.



Measure the voltage at the
engine-ECU terminal.



Disconnect the connector A-77



Ignition switch: ON



The voltage between terminal 43
and earth.
OK: 4.8  – 5.2 V

OK

Check the following connector:
C-18

Check the following connector:
A-36

NG

Repair

OK

Check the harness wire between
the crank angle sensor and the
engine-ECU.

NG

Repair

OK

Check the trouble symptoms.

NG

Replace the engine-ECU.

(3) NG

OK

Use an analyzer to measure the
output waveform at the crank angle
sensor connector A-77.



Use the test harness
(MB991658) to connect the
connector, and measure at the
pick-up harness side.



Engine: Idling



The voltage between terminal 3
and earth
OK: A normal waveform should

be displayed as described
on P.13A-84* (Inspection
Procedure Using an Ana-
lyzer). Its maximum value
should be 4.8 V or more,
and its minimum value
should be 0.6 V or less

with no noise in waveform.

NG

Check the crank angle sensor vane.

NG

Replace

OK

Replace the crank angle sensor.

Check the trouble symptoms.

NG

Check the following connectors:
A-36, C-18

NG

Repair

OK

Check the harness wires between
the crank angle sensor and the
engine-ECU, crank angle sensor
and the engine control relay, and
the crank angle sensor and earth.
Then, repair if necessary.

NG

Replace the engine-ECU.

MUT-

II

 Data list

22 Crank angle sensor

OK: Refer to P.13A-94, DATA

LIST REFERENCE TABLE.