Mitsubishi Pajero Pinin. Manual - part 68

 

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Mitsubishi Pajero Pinin. Manual - part 68

 

 

GDI  – 

Troubleshooting

13A-21

OK

Check the trouble symptoms.

NG

Replace the engine-ECU.

OK

Measure at engine coolant
temperature sensor connector A-69.



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



Ignition switch: ON



Voltage between terminal 1 and
earth
OK: At 0



C of engine coolant

temperature: 3.2 – 3.8 V
At 20



C of engine coolant

temperature: 2.3 – 2.9 V
At 40



C of engine coolant

temperature: 1.3 – 1.9 V
At 80



C of engine coolant

temperature: 0.3 – 0.9 V

NG

Check the engine coolant
temperature sensor. 
(Refer to P.13A-102*.)

NG

Repair

OK

Check the harness wire between
the engine coolant temperature
sensor and the engine-ECU, and
repair if necessary.

OK

Check the following connectors:
A-36, C-18, C-19

NG

Repair

From the previous page

NOTE
*:

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

GDI  – 

Troubleshooting

13A-22

Code No. P0120 Throttle position sensor (1st channel)
system

Probable cause

The throttle valve controller judges a malfunction, and then transmit the result
to the engine-ECU.
Range of Check



Ignition switch: ON

Set Conditions



The sensor output voltage is 0.2 V or less.

or



The sensor output voltage is 4.9 V or more.

or



The throttle position sensor (1st channel) and throttle position sensor (2nd
channel) combination output voltage is outside 4 – 6 V.

or



The output voltage of the throttle position sensor (1st channel) is
significantly different (approx. 1V) from the throttle valve opening angle
(voltage), which the engine-ECU request the throttle valve controller.



Malfunction of throttle position sensor



Open or short circuit in the throttle position
sensor (1st channel) circuit or loose connector
contact



Malfunction of throttle valve controller



Malfunction of engine-ECU

OK

Check the harness wire between
the throttle position sensor and the
throttle valve controller, and repair if
necessary.

MUT-

II

 Data list

79 Throttle position sensor (1st

channel) (Refer to P.13A-94,
DATA LIST REFERENCE
TABLE.)

OK

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

NG

Check the throttle position sensor.
(Refer to P.13A-103*.)

NG

Replace

OK

Measure at throttle position sensor
connector A-06.



Disconnect the connector and
measure at the harness side.

(1) Voltage between terminal 1 and

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

(2) Resistance between terminal 3

and earth
OK: 2 

Ω

 or less

(1) NG

Measure at throttle valve controller
connector C-48.



Measure voltage at the throttle
valve controller connector
terminals.



Ignition switch: ON



Voltage between terminal 6 and
earth
OK: 4.8  – 5.2 V

OK

Check the following connector:
C-48

NG

Repair

NG

Check the following connector:
C-48

NG

Repair

OK

Check the trouble symptoms.

NG

Replace the throttle valve controller.

OK

Check the following connector:
A-06

NG

Repair

(2) NG

Check the following connector:
C-48

NG

Repair

OK

Check the harness wire between
the throttle position sensor and the
throttle valve controller.

NG

Repair

OK

Check the harness wire between
the throttle position sensor and the
throttle valve controller.

NG

Repair

OK

Check the trouble symptoms.

NG

Replace the throttle valve controller.

OK

To the next page

NOTE
*:

Refer to the ’00 PAJERO PININ Workshop Manual (Pub. No. CKPE00E1)

GDI  – 

Troubleshooting

13A-23

OK

Measure at throttle valve controller
connector C-48.



Measure voltage at the throttle
valve controller connector
terminals.



Ignition switch: ON



Voltage between terminal 7 and
earth
OK: Accelerator pedal fully re-

leased: 0.45 – 0.8 V
Accelerator pedal fully de-
pressed: 3.9 – 4.9 V

NG

Check the following connector:
C-48

NG

Repair

OK

Check the harness wire between
the throttle position sensor and the
throttle valve controller, and repair if
necessary.

OK

Check the following connector:
C-48

OK

Check the trouble symptoms.

NG

Replace the throttle valve controller.

From the previous page

NG

Repair

OK

Measure at throttle position sensor
connector A-66.



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



Ignition switch: ON

(1) Voltage between terminal 1 and

earth
OK: 4.8  – 5.2 V

(2) Voltage between terminal 2 and

earth
OK: Accelerator pedal fully re-

leased: 0.45 – 0.8 V
Accelerator pedal fully de-
pressed: 3.9 – 4.9 V

(3) Voltage between terminal 3 and

earth
OK: 0.5 V or less

(1) NG

Check the following connector:
C-48

NG

Repair

(3) NG

OK

Check the harness wire between
the throttle position sensor and the
throttle valve controller, and repair if
necessary.

(2) NG

Adjust the throttle position sensor.
(Refer to P.13A-92*.)

Check the following connector:
C-48

NG

Repair

OK

Check the harness wire between
the throttle position sensor and the
throttle valve controller, and repair if
necessary.

NOTE
*:

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

GDI  – 

Troubleshooting

GDI  – 

Troubleshooting

13A-24

Code No. P0125 Feedback system

Probable cause

Range of Check



The engine coolant temperature is approx. 80



C or more.



During stoichiometric feedback control



The vehicle is not being decelerated.

Set Conditions



Oxygen sensor (front) output voltage has been higher or lower than 0.5 V
for at least thirty seconds.



Malfunction of oxygen sensor (front)



Open or short circuit in the oxygen sensor (front)
circuit or loose connector contact



Malfunction of engine-ECU

Repair

OK

Measure at oxygen sensor (front)
connector A-67.



Disconnect the connector and
measure at the harness side.



Resistance between terminal 2
and earth
OK: 2 

Ω

 or less

NG

Check the following connectors:
A-36, C-19

NG

OK

Check the trouble symptoms.

Check the following connector:
A-67

NG

Repair

(2) NG

Check the oxygen sensor (front). 
(Refer to P.13A-112.)

NG

Replace

OK

Check the harness wire between
the oxygen sensor (front) and the
engine-ECU

NG

Repair

NG

Replace the engine-ECU.

Repair

OK

Measure at oxygen sensor (front)
connector A-67.



Use the test harness
(MD998464) to connect the
connector, and measure at the
pick-up harness side.



Engine: 2,500 r/min (after
warming up)

(1) Voltage between terminal 2 and

earth
OK: 0.5 V or less

(2) Voltage between terminal 4 and

earth
OK: 0 V and 0.8 V alternate.

(1) NG

Check the following connectors:
A-36, C-19

NG

OK

Check the harness wire between
the oxygen sensor (front) and the
engine-ECU, and repair if necessary.

OK

NG

Repair

OK

Check the harness wire between
the oxygen sensor (front) and the
engine-ECU, and repair if necessary.

OK

NG

Check the following connector:
C-19

NG

OK

Check the harness wire between
the oxygen sensor (front) and the
engine-ECU, and repair if necessary.

OK

Check the following connector:
C-19

OK

Repair

NG

Check the trouble symptoms.

OK

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

NG

Replace the engine-ECU.

Repair

Check the following connector:
C-19

Measure at engine-ECU connector
C-19.



Measure the voltage at the
engine-ECU terminal.



Engine: 2,500 r/min (after
warming up)



Voltage between terminal 71 and
earth
OK: 0 V and 0.8 V alternate.

 

 

 

 

 

 

 

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