GDI ±
Troubleshooting
13A-60
INSPECTION PROCEDURE 20
Fans (radiator fan, A/C condenser fan) are inoperative.
Probable cause
The engine-ECU sends a duty signal to the fan controller according to engine coolant
temperature, vehicle speed, or A/C switch.
The fan controller controls radiator fan and condenser fan speeds, based on this
signal. (The closer the terminal voltage comes to 5 V, the higher the fan speed
becomes.)
D
Malfunction of the fan motor relay
D
Malfunction of the fan motor
D
Malfunction of the fan controller
D
Open or short circuit, or poor connector contact
D
Malfunction of the engine-ECU
NG
Repair
NG
Repair
NG
Repair
Measure at engine-ECU connector C-17.
D
Disconnect the connector, measure at the harness side.
D
Voltage between terminal 18 and earth
(Ignition switch: ON)
OK:
4.8 ± 5.2 V (The fan runs at high speed.)
D
Earth terminal 21.
(Ignition switch: ON)
OK:
The fan stops.
NG
Check the following connector:
A-29
OK
Check trouble symptom.
NG
Check the harness wire between the engine-ECU and fan control-
ler.
OK
Check the radiator fan and condenser fan circuit. (Refer to GROUP
14 ± Troubleshooting.)
OK
Check the following connector:
C-17
OK
Check trouble symptom.
NG
MUT-
II
Data list
21 Engine coolant temperature sensor
OK:
After the engine has been warmed up, the engine coolant
temperature during idling is identical to the MUT-
II
reading.
NG
Check the engine coolant temperature sensor system. (Refer to
P.13A-19, INSPECTION PROCEDURE FOR DIAGNOSIS CODE
21.)
OK
Check the thermostat.
NG
Replace
OK
Replace the engine-ECU.
Summary of Contents for Pajero Pinin 1999
Page 32: ...NOTES ...
Page 73: ...13A 1 FUEL CONTENTS GASOLINE DIRECT INJECTION GDI 13A FUEL SUPPLY 13B ...
Page 190: ...NOTES ...
Page 191: ...13B 1 FUEL SUPPLY CONTENTS FUEL TANK 2 Fuel Pump Module 4 ...
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Page 443: ...32 1 POWER PLANT MOUNT CONTENTS ENGINE MOUNTING 2 TRANSMISSION MOUNTING 3 ...
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Page 467: ...NOTES ...
Page 468: ...BASIC BRAKE SYSTEM 35A ANTI SKID BRAKING SYSTEM ABS 4WD 35B 35A 1 SERVICE BRAKES CONTENTS ...
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Page 728: ...54A 1 CHASSIS ELECTRICAL CONTENTS CHASSIS ELECTRICAL 54A SMART WIRING SYSTEM SWS 54B ...
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