Mitsubishi Pajero Pinin. Manual - part 38

GDI – 

Troubleshooting

13A-18

Code No.14 Throttle position sensor system (2nd channel)

Probable cause

The throttle valve controller determines whether a failure is present or not, and
sends a signal indicating its result to the engine-ECU.
Range of check

D

Ignition switch: ON

D

Throttle position sensor (1st channel) is normal

Set conditions

D

The throttle position sensor (1st channel) output voltage is 1.24 V or more, and
the (2nd channel) output voltage is 4.6 V or more for one second.

or

D

The throttle position sensor (1st channel) output voltage is 3.53 V or less, and
the (2nd channel) output voltage is 0.2 V or less for one second.

or

D

Throttle position sensor (1st and 2nd channels) output voltages are outside 4
to 6 V.

D

Malfunction of throttle position sensor (2nd channel)

D

Open circuit or short-circuited harness wire in throttle
position sensor (2nd channel) or poor connector
contact

D

Faulty throttle valve controller

D

Malfunction of the engine-ECU

Check trouble symptom.

NG

Replace the engine-ECU.

NG

Repair

OK

Replace the throttle valve controller.

Check the throttle position sensor. (Re-
fer to P.13A-103.)

NG

Replace

OK

Measure at throttle position sensor con-
nector A-03.

D

Disconnect the connector, and
measure at the harness side.

D

Voltage 1 and earth
(Ignition switch: ON)
OK: 4.8 – 5.2 V

D

Continuity between 3 and earth
OK: Continuity

NG

Check the following connector: C-48

NG

Repair

OK

Check trouble symptom.

NG

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

OK

NG

Check the following connector: A-03

NG

Repair

OK

Check trouble symptom.

NG

Check the harness wire between the
engine-ECU and throttle position sen-
sor.

OK

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

NG

Repair

OK

Measure at throttle valve controller con-
nector C-48.

D

Connect the connector.

D

Disconnect the throttle valve control
servo connector (Close the throttle
valve fully by finger).

D

Voltage between 7 and earth
(Ignition switch: ON)
OK: 0.1 – 1.1 V

NG

Check the following connector: A-03

NG

Repair

OK

Check trouble symptom.

NG

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

OK

Replace the throttle valve controller.

Measure at engine-ECU connector
C-19.

D

Connect the connector.

D

Disconnect the throttle valve control
servo connector (Close the throttle
valve fully by finger).

D

Voltage between terminal 78 and
earth
(Ignition switch: ON)
OK: 4.0 – 4.8 V

GDI – 

Troubleshooting

13A-19

Code No.21 Engine coolant temperature sensor system

Probable cause

Range of check

D

After 60 seconds have passed since the engine have started

Set conditions

D

Sensor resistance is 50 

Ω

 or less for 4 seconds.

or

D

Sensor resistance is 72 k

Ω

 or more for 4 seconds.

D

Malfunction of the engine coolant temperature
sensor

D

Open circuit or short-circuited harness wire of the
engine coolant temperature sensor circuit

D

Malfunction of the engine-ECU

Range of check

D

After engine starts

Set conditions

D

After 5 minutes or more have passed since the engine coolant temperature
after filtering has dropped from 40

_

C or more to less than this temperature

NG

Repair

NG

Repair

OK

Replace the engine-ECU.

NG

Repair

NG

OK

Check trouble symptom.

OK

Check the following connector: A-69

NG

Check the harness wire between the engine-ECU and the engine
coolant temperature sensor.

OK

Check trouble symptom.

OK

Measure at the engine coolant temperature sensor connector A-69.

D

Disconnect the connector, and measure at the harness
side.

D

Voltage between 1 and earth
(Ignition switch: ON)
OK: 4.5 – 4.9 V

D

Continuity between 2 and earth
OK: Continuity

NG

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

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

NG

Replace

GDI – 

Troubleshooting

13A-20

Code No.22 Crank angle sensor system

Probable cause

Range of check

D

Engine: During cranking

Set conditions

D

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

D

Malfunction of the crank angle sensor

D

Open circuit or short-circuited harness wire of the
crank angle sensor circuit

D

Malfunction of the engine-ECU

NG

Repair

NG

Repair

OK

Replace the engine-ECU.

(3) NG

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

NG

Repair

NG

Replace the crank angle sensor.

OK

Replace the engine-ECU.

OK

Check trouble symptom.

NG

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

OK

Check trouble symptom.

(2) NG

Check the following connector:
C-18

OK

Check the following connector:
A-77

NG

Measure at the crank angle sensor con-
nector A-77.

D

Disconnect the connector, and
measure at the harness side.

(1) Voltage between 2 and earth

(Ignition switch: ON)
OK: System voltage

(2) Voltage between 3 and earth

(Ignition switch: ON)
OK: 4.8 – 5.2 V

(3) Continuity between 1 and earth

OK: Continuity

(1) NG

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

Check the following connector:
A-36

OK

Repair

NG

Check trouble symptom.

NG

Measure at the crank angle sensor con-
nector A-77.

D

Connect the connector
(Use the test harness
MB991658)

D

Voltage between 3 (black clip)
and earth
(Engine: Cranking)
OK: 0.4 – 4.0 V

D

Voltage between 3 (black clip)
and earth
(Engine: Idling)
OK: 1.5 – 2.5 V

GDI – 

Troubleshooting

13A-21

Code No.23 Camshaft position sensor system

Probable cause

Range of check

D

While engine is cranking or running

Set conditions

D

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

D

Malfunction of the camshaft position sensor

D

Open circuit or short-circuited harness wire of the
camshaft position sensor circuit

D

Malfunction of the engine-ECU

OK

Replace the engine-ECU.

NG

Repair

NG

Repair

OK

Replace the engine-ECU.

(3) NG

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

NG

Repair

NG

Replace the camshaft position sensor.

OK

Check trouble symptom.

NG

Check the harness wire between the
engine-ECU and the camshaft position
sensor.

OK

Check trouble symptom.

(2) NG

Check the following connector:
C-18

OK

Check the following connector:
A-66

Measure at the camshaft position sen-
sor connector A-66.

D

Connect the connector (Use the
test harness MD991709)

D

Voltage between 2 and earth
(Engine: Cranking)
OK: 0.3 – 3.0 V

D

Voltage between 2 and earth
(Engine: Idling)
OK: 0.5 – 3.5 V

NG

Measure at the camshaft position sen-
sor connector A-66.

D

Disconnect the connector, and
measure at the harness side.

(1) Voltage between 3 and earth

(Ignition switch: ON)
OK: System voltage

(2) Voltage between 2 and earth

(Ignition switch: ON)
OK: 4.8 – 5.2 V

(3) Continuity between 1 and earth

OK: Continuity

(1) NG

Check the harness wire between the
camshaft position sensor and the en-
gine control relay, and repair if neces-
sary.

Check the following connector:
A-36

OK

Repair

NG

Check trouble symptom.

NG