Mitsubishi Pajero Pinin. Manual - part 86

 

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Mitsubishi Pajero Pinin. Manual - part 86

 

 

GDI  – 

Troubleshooting

13A-93

INSPECTION PROCEDURE 32

Stop lamp switch system

Probable cause

The engine-ECU determines whether the brake pedal is depressed or not, by means
of the stop lamp switch input signal.



Malfunction of the stop lamp switch



Open circuit or short-circuited harness wire in the
stop lamp circuit, or poor connector contact



Malfunction of the engine-ECU

NG

Replace the engine-ECU.

OK

Check trouble symptom.

OK

Check the following connector: C-18

NG

Repair

NG

Check the harness wire between the engine-ECU and stop lamp,
and repair if necessary.

NG

Repair

OK

Check trouble symptom.

NG

Check the following connectors: C-02, C-04, C-28

OK

Measure at engine-ECU connector C-18.



Disconnect the connector, and measure at the harness side.



Voltage between terminal 63 and earth
(Ignition switch: ON)
OK: 0  – 3 V (when the brake pedal is not depressed)

System voltage (when the brake pedal is depressed)

NG

Check the harness wire between the battery and stop lamp switch.

NG

Repair

OK

Check trouble symptom.

NG

Check the following connector: C-29 

OK

Measure at stop lamp switch connector C-04.



Disconnect the connector, and measure at the harness side.



Voltage between terminal 2 and earth
OK: System voltage

Check the stop lamp switch. (Refer to GROUP 35 – Brake Pedal.)

NG

Replace

INSPECTION PROCEDURE 33

Small lamp switch system

Probable cause

The engine-ECU determines whether the small lamp switch is on or off.
According to that information, the engine-ECU controls alternator output current
when the vehicle is started.



Improper connector contact, open circuit or
short-circuited harness wire in the taillamp circuit



Malfunction of the engine-ECU

NG

Replace the engine-ECU.

OK

Check the trouble symptoms.

OK

Check the following connector: C-19 

NG

Repair

Measure at the engine-ECU connector C-19.



Disconnect the connector, and measure at the harness
side.



Voltage between 88 and earth
(Lighting switch: ON)
OK: System voltage

NG

Check the taillamp circuit. (Refer to ELECTRICAL WIRING.)

GDI  – 

Troubleshooting

13A-94

DATA LIST REFERENCE TABLE

Caution
When shifting the select lever to D range, the brakes should be applied so that the vehicle does
not move forward.

NOTE
*

1

: Within four minutes after starting the engine

*

2

: In a new vehicle [driven approximately 500 km or less], the injector drive time is sometimes 10 %

longer than the standard time.

*

3

: The accelerator pedal position switch normally turns off when the voltage of the accelerator pedal

position sensor (1st channel) is 200 – 600 mV higher than the voltage at the idle position. If the accelerator
pedal position switch turns back on after the accelerator pedal position sensor voltage has risen by
100 mV and the throttle valve has opened, the accelerator pedal position switch and the accelerator
pedal position sensor (1st channel) need to be adjusted.

Item
No.

Check items

Requirements

Normal condition

Inspection
procedure
No.

Reference
page

11

Oxygen sensor
(front)

Engine: After
warm-up

Idling

0 mV*

1

Code No.
P0130

13A-25

(front)

warm-up

Sudden racing

600 – 1,000 mV

P0130

2,500 r/min

400 mV or less and
600  – 1,000 mV
alternates.

12

Air flow sensor



Engine coolant
temperature:
80 – 95



C

Idling

24 – 50 Hz

Code No.
P0100

13A-14

80  –  95



C



Lamps, electric
cooling fan and
all accessories:

2,500 r/min

70 – 90 Hz

all accessories:
OFF



Transmission:
Neutral 
(A/T: P range)

Racing

Frequency in-
creases in re-
sponse to racing.

13

Intake air tem-
perature sen-
sor

Ignition switch: ON

Intake air tempera-
ture: –20



C

–20



C

Code No.
P0110

13A-18

sor

Intake air tempera-
ture: 0



C

0



C

Intake air tempera-
ture: 20



C

20



C

Intake air tempera-
ture: 40



C

40



C

Intake air tempera-
ture: 80



C

80



C

GDI  – 

Troubleshooting

13A-95

Item
No.

Reference
page

Inspection
procedure
No.

Normal condition

Requirements

Check items

14

Throttle posi-
tion sensor
(2nd channel)



Engine coolant
temperature:
80

95



C

Release the accel-
erator pedal.

4,000 – 4,800

Code No.
P0225

13A-43

(2nd channel)

80  –  95



C



Ignition switch:
ON (Engine
stopped)

Depress the accel-
erator pedal gradu-
ally.

Voltage decreases
in response to the
pedal depression.

Depress the accel-
erator pedal fully.

100 – 1,100 mV

16

Power supply
voltage

Ignition switch: ON

System voltage

Procedure
No. 23

13A-86

18

Cranking sig-
nal (Ignition
switch – ST)

Transmission: 
Neutral  
(A/T: P range)

Engine: Stopped

OFF

Procedure
No.26
<M/T>
Procedure

13A-89
<M/T>
13A-89
<A/T>

Engine: Cranking

ON

Procedure
No.27
<A/T>

<A/T>

21

Engine coolant
temperature
sensor

Ignition switch: ON

Engine coolant
temperature:
–20



C

–20



C

Code No.
P0115

13A-19

Engine coolant
temperature: 0



C

0



C

Engine coolant
temperature: 20



C

20



C

Engine coolant
temperature: 40



C

40



C

Engine coolant
temperature: 80



C

80



C

22

Crank angle
sensor



Engine: Crank-
ing



Tachometer:
Connected

Compare the engine
speed readings on
the tachometer and
the MUT-

II

.

Accord

Code No.
P0335

13A-47



Engine: Idling



Accelerator
pedal position
switch: ON

Engine coolant
temperature:
–20



C

1,200 – 1,400 r/min

switch:  ON

Engine coolant
temperature: 0



C

1,100 – 1,300 r/min

Engine coolant
temperature: 20



C

1,000 – 1,200 r/min

Engine coolant
temperature: 40



C

850 – 1,050 r/min

Engine coolant
temperature: 80



C

550 – 750 r/min*

1

24

Vehicle speed 
sensor

Drive at 40 km/h

Approximately
40 km/h

Code No.
P0500

13A-53

GDI  – 

Troubleshooting

13A-96

Item
No.

Reference
page

Inspection
procedure
No.

Normal condition

Requirements

Check items

25

Barometric
pressure sen-

Ignition switch: ON

Altitude: 0 m

101 kPa

Code No.
P0105

13A-16

pressure sen-
sor

Altitude: 600 m

95 kPa

P0105

Altitude: 1,200 m

88 kPa

Altitude: 1,800 m

81 kPa

26

Accelerator
pedal position
switch

Ignition switch: ON
(Depress and re-
lease the accelera-

Release the accel-
erator pedal.

ON

Procedure
No. 28

13A-90

switch

lease the accelera-
tor pedal several
times)

Depress the accel-
erator pedal slight-
ly.

OFF

27

Power steering
fluid pressure
switch

Engine: Idling

Steering wheel sta-
tionary

OFF

Procedure
No. 30

13A-92

switch

Steering wheel
turning

ON

28

A/C switch

Engine: Idling (The
A/C compressor is

A/C switch: OFF

OFF

Procedure
No. 31

13A-92

A/C  com ressor  is
running when the
A/C switch is on.)

A/C switch: ON

ON

No. 31

29

Inhibitor switch
<A/T>

Ignition switch: ON

Selector lever: P or
N

P, N

Procedure
No. 27

13A-89

Selector lever: D, 2,
L or R

D, 2, L, R

31

Small lamp
switch

Engine: Idling

Lighting switch:
OFF

OFF

Procedure
No. 33

13A-93

Lighting switch: ON

ON

34

Air flow sensor
reset signal

Engine: After hav-
ing warmed up

Engine is idling

ON

Code No.
P0100

13A-14

reset signal

ing warmed up

3,000 r/min

OFF

P0100

37

Volumetric effi-
ciency



Engine coolant
temperature:
80 – 95



C

Engine is idling

30 – 50 %

–

–

80  –  95



C



Lamps, electric
cooling fan and
all accessories:

2,500 r/min

10 – 30 %

all accessories:
OFF



Transmission:
Neutral
(A/T: P range)

Engine is suddenly
raced

Volumetric effi-
ciency increases in
response to racing

38

Crank angle
sensor



Engine: Cranking [reading is possible
at 2,000 r/min or less]



Tachometer: Connected

Engine speeds dis-
played on the
MUT-

II

 and

tachometer are
identical.

–

–

 

 

 

 

 

 

 

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