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GDI <4G9> -
Troubleshooting
13B-49
INSPECTION PROCEDURE 21
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
Repair
NG
Repair
Measure at engine-ECU connector B-54.
D
Disconnect the connector, measure at the harness side.
D
Voltage between terminal 21 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
NG
Check the harness wire between the engine-ECU and fan controller.
OK
Check the radiator fan and condenser fan circuit. (Refer to GROUP
14 - Troubleshooting.)
OK
Check the following connector:
B-54
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.13B-16, Code No.21.)
OK
Check the thermostat.
NG
Replace
OK
Replace the engine-ECU.
Содержание Space Runner 1998
Страница 35: ...ENGINE 4G6 11A ENGINE 4G9 11B 11A 1 ENGINE CONTENTS 11109000276...
Страница 74: ...NOTES...
Страница 119: ...13A 1 FUEL CONTENTS GASOLINE DIRECT INJECTION GDI 4G6 13A GASOLINE DIRECT INJECTION GDI 4G9 13B FUEL SUPPLY 13C...
Страница 354: ...NOTES...
Страница 355: ...13C 1 FUEL SUPPLY CONTENTS 13509000197 GENERAL INFORMATION 2 FUEL TANK 3...
Страница 418: ...NOTES...
Страница 436: ...NOTES...
Страница 460: ...NOTES...
Страница 519: ...AUTOMATIC TRANSMISSION On vehicle Service 23 59 OIL SEAL LAYOUTsub 04 O A H B C D E F G I J K L M N...
Страница 532: ...NOTES...
Страница 567: ...REAR AXLE 2WD 27A REAR AXLE 4WD 27B 27A 1 REAR AXLE CONTENTS 27109000246...
Страница 660: ...NOTES...
Страница 714: ...NOTES...
Страница 722: ...NOTES...
Страница 732: ...NOTES...
Страница 772: ...NOTES...
Страница 912: ...NOTES...
Страница 913: ...INTERIOR 52A SUPPLEMENTAL RESTRAINT SYSTEM SRS 52B 52A 1 INTERIOR AND SUPPLEMENTAL RESTRAINT SYSTEM SRS CONTENTS...
Страница 954: ...NOTES...