Mitsubishi Space Star. Manual - part 82

 

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Mitsubishi Space Star. Manual - part 82

 

 

DIESEL FUEL – 

Troubleshooting

DIESEL FUEL – 

Troubleshooting

13D-27

Code No. 34 Glow plug system

Probable cause



Malfunction of the glow plug



Improper connector contact, open circuit or
short-circuited harness wire of the glow plug
circuit



Malfunction of the engine-ECU

Check the following connectors: A-105, A-106, A-111,
A-123, A-124

OK

Check trouble symptom.

Check the harness wire between the glow plug and the
engine-ECU.

OK

Repair

NG

Repair

NG

Replace the engine-ECU.

NG

OK

Check the glow plug (Refer to GROUP 16 – Glow System.)

Replace

NG

NG

Check the harness wire between the glow relay box and the
glow plug.

Repair

Check trouble symptom.

Replace the glow relay box.

OK

Check the following connector: A-121

OK

Repair

NG

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

Code No. 35 Vehicle speed sensor system

Probable cause

Range of Check



Ignition switch: ON

or



During engine running

Set Conditions



Sensor output voltage corresponds to a speed of 250 km/h or more for 1
second



Malfunction of the vehicle speed sensor



Improper connector contact, open circuit or
short-circuited harness wire of the vehicle speed
sensor circuit



Malfunction of the engine-ECU

NO

Repair

NG

Check the following connectors: A-71, A-113, A-122

Does the speedometer operate normally.

Replace the engine-ECU.

YES

Check trouble symptom.

NG

Check the vehicle speed sensor circuit. 
(Refer to GROUP 54 – Combination Meter.)

OK

Repair

NG

Check the harness wire between the vehicle speed sensor
and the engine-ECU.

OK

DIESEL FUEL – 

Troubleshooting

13D-28

Code No. 36 Fuel pressure system

Probable cause



Malfunction of the high pressure pump



Malfunction of the injector



Seized fuel pressure regulator



Fuel leaking from high pressure fuel system

YES

MUT-

II

 Self-Diagnosis code

Is diagnosis code No.21 or 28 output?

NO

Follow INSPECTION PROCEDURE FOR DIAGNOSIS CODES

MUT-

II

 Data list

06 Fuel pressure sensor (Refer to P.13D-46.)

NG

MUT-

II

 Actuator test

07 Fuel pressure regulator (Refer to P.13D-50.)

OK

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

NG

Check the fuel pressure regulator system (Refer to P.13D-24,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 28.)

Check the following items:



High pressure pump



Injector



Fuel leaking from high pressure fuel system

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

DIESEL FUEL – 

Troubleshooting

13D-29

Code No. 37 Throttle valve control solenoid system

Probable cause



Malfunction of the throttle valve control solenoid



Improper connector contact, open circuit or
short-circuited harness wire of the throttle valve
control solenoid circuit



Malfunction of the engine-ECU

NG

Check the following connector: A-109

NG

OK

Measure at the throttle valve control solenoid connector A-107.



Disconnect the connector and measure at the harness
side.



Voltage between 1 and earth (Ignition switch: ON)
OK: System voltage

NG

Check the following connectors: A-107, A-109, A-120

OK

Check the throttle valve control solenoid (Refer to P.13D-54.)

OK

Check trouble symptom.

Repair

NG

Replace the engine-ECU.

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

06 Throttle valve control solenoid (Refer to P.13D-50.)

Check the harness wire between the throttle valve control
solenoid and the main relay, and repair if necessary.

NG

Check trouble symptom.

NG

Repair

NG

OK

Replace

Check the harness wire between the throttle valve control
solenoid and engine-ECU.

OK

Repair

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

DIESEL FUEL – 

Troubleshooting

13D-30

Code No. 38 Engine-ECU

Probable cause



Malfunction of the engine-ECU

Disconnect the battery terminals and reset the engine-ECU.

Check trouble symptom.

NG

Replace the engine-ECU.

Check the harness wire between the ignition switch and the
engine-ECU.

Check trouble symptom.

NG

Check the following connectors: B-18, A-121

Repair

NG

OK

OK

Repair

NG

Code No. 40 Additional heater relay system

Probable cause



Malfunction of the additional heater relay 1, 2



Improper connector contact, open circuit or
short-circuited harness wire of the additional
heater relay circuit



Malfunction of the engine-ECU

NG

OK

Check the following connectors: A-09X, A-13X, A-23, A-120

OK

NG

Check the following connector: A-23

OK

OK

Check trouble symptom.

Repair

NG

Check the harness wire between the additional heater relay
and the main relay, and repair if necessary.

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

10 Additional heater relay 1
11 Additional heater relay 2
(Refer to P.13D-50.)

Replace the engine-ECU.

NG

Check trouble symptom.

NG

Repair

NG

Measure at the additional heater relay 1, 2 connectors  A-09X,
A-13X.



Disconnect the connector and measure at the harness
side.



Voltage between 5 and earth (Ignition switch: ON)
OK: System voltage

Check the harness wire between the additional heater relay
and engine-ECU.

OK

Repair

NG

*:

 Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

 

 

 

 

 

 

 

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