Mitsubishi Pajero Pinin. Manual — part 114
MPI <4G9> –
Troubleshooting
13C-42
NG
Replace the engine-ECU.
OK
Check the trouble symptoms.
OK
Intermittent malfunction
(Refer to GROUP 00 – Points to
Note for Intermittent Malfunctions.)
OK
Check the harness wire between
the engine control relay and the idle
speed control servo, and between
the idle speed control servo and the
engine-ECU.
NG
Repair
OK
Check the following connector:
A-04
NG
Repair
From the previous page
MPI <4G9> –
Troubleshooting
13C-43
Code No. P0551 Power Steering fluid Pressure Switch
System
Probable cause
Check Area
D
Intake air temperature is –10
_
C or higher.
D
Barometric pressure is 76 kPa or higher.
D
Engine coolant temperature is 30
_
C or more.
D
Repeat *1 drive and *2 stop ten times or more.
*1: Engine speed is 2,500 r/min or higher, volumetric efficiency is 55 % or
higher and vehicle speed is 5 km/h or higher for 4 seconds or more.
*2: Vehicle speed is 1.5 km/h or lower.
Judgment Criteria
D
Power steering pressure switch remains on.
D
Power steering fluid pressure switch failed.
D
Open or shorted power steering fluid pressure
switch circuit or loose connector
D
Malfunction of engine-ECU
NG
Repair
Replace the engine-
ECU.
OK
NG
Check the harness wire
between engine-ECU
and power steering
pressure switch
connector.
OK
Check the trouble
symptom.
OK
Replace the engine-ECU.
OK
Check the trouble
symptom.
Repair
NG
OK
Check the following
connector: A-76
NG
Repair
NG
Check the following
connectors: A-76, C-88
OK
Measure at the power steering pressure switch connector
A-76.
D
Disconnect the connector and measure at the harness
side.
D
Voltage between 1 and ground (Ignition switch: ON)
OK: Battery positive voltage
OK
Check the following connector: A-76
NG
Repair
OK
Transient malfunction (Refer to GROUP 00 – Points to Note
for Intermittent Malfunctions.)
NG
Check the power steering pressure switch.
(Refer to GROUP 37A – On-vehicle Service.)
NG
Replace
MUT-
II
Data list
27 Power steering fluid pressure switch
(Refer to P.13C-74, DATA LIST REFERENCE TABLE.)
MPI <4G9> –
Troubleshooting
13C-44
Code No. P1603 Battery backup line system
Probable cause
Range of Check
D
Ignition switch: ON
Set Conditions
D
Backup RAM data which was set when the ignition switch was turned off
the previous time has not been retained.
D
Open circuit or short-circuit in the battery backup
line, or loose connector contact
D
Malfunction of the engine-ECU
OK
Check the harness between the
battery and the engine-ECU, and
repair if necessary.
NG
Repair
End
NO
MUT-
II
diagnosis codes
D
Is code No. P1603 output?
NG
Replace the engine-ECU.
OK
Check the following connectors:
C-90
OK
Transient malfunction (Refer to
GROUP 00 – Points to Note for
Transient Malfunctions.)
OK
Check the trouble symptoms.
NG
Check the harness between the
battery and the engine-ECU, and
repair if necessary.
NG
Measure at the engine-ECU
connector C-90.
D
Measure the engine-ECU
terminal voltage.
D
Ignition switch: ON
D
Voltage between 80 and earth
OK: System voltage
NG
Replace
Were the battery terminals
disconnected immediately before
reading the diagnosis codes?
YES
Turn the ignition switch to the
LOCK (OFF) position, wait for 10
seconds, and then turn it back to
the ON position.
Measure at the ECU connector
C-90.
D
Disconnect the connector and
measure at the harness side.
D
Voltage between 80 and earth
OK: System voltage
OK
Check the following connector:
A-36, C-90
YES
MPI <4G9> –
Troubleshooting
13C-45
Code No. P1610 Immobilizer system
Probable cause
Range of Check
D
Ignition switch: ON
Set Conditions
D
Improper communication between the engine-ECU and the immobilizer-ECU
D
Open or short circuit, or loose connector contact
D
Malfunction of the immobilizer-ECU
D
Malfunction of the engine-ECU
NOTE
(1) If the registered ignition keys are close each other when starting the engine, radio interference may
cause this code to be displayed.
(2) This code may be displayed when registering the key ID code.
NG
Replace the engine-ECU.
Check the trouble symptoms.
NG
Replace the immobilizer-ECU.
OK
Check the trouble symptoms.
OK
Check the harness wire between
the immobilizer-ECU and the
engine-ECU.
NG
Replace
Check the following connectors:
C-62, C-29, A-43X
NG
Repair
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст