Mitsubishi Pajero Pinin. Manual - part 43

GDI – 

Troubleshooting

13A-38

Code No.95 Malfunction in throttle valve control servo
motor (1st motor) system

Probable cause

Range of check

D

Throttle valve control servo relay: ON

D

System voltage: 8 V or more

Set conditions

D

Throttle valve control servo drive circuit is shorted to earth.

D

Other power source interferences with throttle valve control servo drive circuit.

D

Throttle valve control servo drive circuit is open circuit.

D

Malfunction of the throttle valve control servo

D

Open circuit or short-circuited harness wire in throttle
valve control servo system, or poor connector contact

D

Malfunction of the throttle valve controller

Check the throttle valve control servo. (Refer to P.13A-107.)

NG

Replace

OK

Check the following connectors: A-05, C-48

NG

Repair

OK

Check trouble symptom.

NG

Check the harness wire between the throttle valve control servo
and throttle valve controller.

OK

Replace the throttle valve controller.

NG

Repair

Code No.99 Malfunction in throttle valve control servo
motor (2nd motor) system

Probable cause

Range of check

D

Throttle valve control servo relay: ON

D

System voltage: 8V or more

Set conditions

D

Throttle valve control servo drive circuit is shorted to earth.

D

Other power source interferes with throttle valve control servo drive circuit.

D

Throttle valve control servo drive circuit is open-circuited.

D

Malfunction of the throttle valve control servo

D

Open circuit or short-circuited harness wire in the
throttle valve control servo system, or poor connector
contact

D

Malfunction of the throttle valve controller

Check the throttle valve control servo. (Refer to P.13A-107.)

NG

Replace

OK

Check the following connectors: A-05, C-48

NG

Repair

OK

Check trouble symptom.

NG

Check the harness wire between the throttle valve control servo
and throttle valve controller.

OK

Replace the throttle valve controller.

NG

Repair

GDI – 

Troubleshooting

13A-39

INSPECTION CHART FOR TROUBLE SYMPTOMS

Trouble symptom

Inspection
procedure
No.

Reference page

Communication
with MUT-

II

is

Communication with all systems is not possible.

1

13A-41

with MUT-

II

 is 

impossible.

Communication with engine-ECU only is not possible.

2

13A-42

Engine warning
lamp and 
related parts

The engine warning lamp does not illuminate right after the
ignition switch is turned to the ON position.

3

13A-42

related parts

The engine warning lamp remains illuminating and never goes
out.

4

13A-43

Starting

No initial combustion (starting impossible)

5

13A-43

Initial combustion but no complete combustion 
(starting impossible)

6

13A-45

Long time to start (improper starting)

Idling stability 
(Improper idling)

Unstable idling (Rough idling, hunting)

7

13A-47

(Improper idling)

Idling speed is high. (Improper idling speed)

8

13A-49

Idling speed is low. (Improper idling speed)

Idling stability 
(Engine stalls)

When the engine is cold, it stalls at idling. (Die out)

9

13A-50

(Engine stalls)

When the engine is hot, it stalls at idling. (Die out)

10

13A-51

The engine stalls when starting the car. (Pass out)

11

13A-53

The engine stalls when decelerating.

12

13A-54

Driving

Hesitation, sag or stumble

13

13A-55

Poor acceleration

Surge

The feeling of impact or vibration when accelerating

14

13A-56

The feeling of impact or vibration when decelerating

15

13A-57

Knocking

16

13A-57

Dieseling

17

13A-57

Too high CO and HC concentration when idling

18

13A-58

Low alternator output voltage (approx. 12.3 V)

19

13A-59

Fans (radiator fan, A/C condenser fan) are inoperative

20

13A-60

GDI ECO
indicator lamp

GDI ECO indicator lamp does not illuminate.

21

13A-61

indicator lamp

GDI ECO indicator lamp remains illuminated and does not go
off.

22

13A-61

GDI – 

Troubleshooting

13A-40

PROBLEM SYMPTOMS TABLE (FOR YOUR INFORMATION)

Items

Symptom

Starting

Won’t start

The starter is used to crank the engine, but there is no combustion within the
cylinders, and the engine won’t start.

Fires up and dies

There is combustion within the cylinders, but then the engine soon stalls.

Hard starting

Engine starts after cranking a while.

Idling 
stability

Hunting

Engine speed doesn’t remain constant; changes at idle.

stability

Rough idle

Usually, a judgement can be based upon the movement of the tachometer
pointer, and the vibration transmitted to the steering wheel, shift lever, body, etc.
This is called rough idle.

Incorrect idle speed

The engine doesn’t idle at the usual correct speed.

Engine stall 
(Die out)

The engine stalls when the foot is taken from the accelerator pedal, regardless
of whether the vehicles is moving or not.

Engine stall 
(Pass out)

The engine stalls when the accelerator pedal is depressed or while it is being
used.

Driving

Hesitation, Sag

“Hesitation” is the delay in response
of the vehicle speed (engine speed)
that occurs when the accelerator is
depressed in order to accelerate
from the speed at which the vehicle
is now traveling, or a temporary drop
in vehicle speed (engine speed)
during such acceleration.
Serious hesitation is called “sag”.

Vehicle
speed

Initial ac-
celerator
pedal de-
pression

Normal

Hesitation

Sag

Time

Poor acceleration

Poor acceleration is inability to obtain an acceleration corresponding to the
degree of throttle opening, even though acceleration is smooth, or the inability
to reach maximum speed.

Stumble

Engine speed increase is delayed
when the accelerator pedal is
initially depressed for accelera-
tion.

Normal

Initial ac-
celerator
pedal de-
pression

Idling

Stumble

Time

Vehicle
speed

GDI – 

Troubleshooting

13A-41

Items

Symptom

Driving

Shock

The feeling of a comparatively large impact or vibration when the engine is
accelerated or decelerated.

Surge

This is repeated surging ahead during constant speed travel or during variable
speed travel.

Knocking

A sharp sound like a hammer striking the cylinder walls during driving and which
adversely affects driving.

Stopping

Run on 
(“Dieseling”)

The condition in which the engine continues to run after the ignition switch is
turned to OFF. Also called “Dieseling”.

INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS

INSPECTION PROCEDURE 1

Communication with MUT-

II

 is not possible.

(Communication with all systems is not possible.)

Probable cause

The cause is probably a defect in the power supply system (including earth) for
the diagnosis line.

D

Malfunction of the connector

D

Malfunction of the harness wire

D

Malfunction of the MUT-

II

Measure at the diagnostic connector
C-35.
(1) Voltage between 16 and earth

OK: System voltage

(2) Continuity between 4 and earth

Continuity between 5 and earth
OK: Continuity

(1) NG

Check the following connectors:
C-76, C-77

NG

Repair

OK

Check trouble symptom.

NG

Check the harness wire between the
power supply and diagnostic connector,
and repair if necessary.

OK

OK

Replace the MUT-

II

.

Check the following connector:
C-01

Repair

Check trouble symptom.

Check the earth line, and repair if nec-
essary.

NG

NG

(2) NG