GDI <4G9> -
Troubleshooting
13B-58
INSPECTION PROCEDURE 31
Power steering fluid pressure switch system
Probable cause
This switch inputs the amount of power steering load to the engine-ECU.
The engine-ECU uses this input to control the idle speed control servo so that
the idle speed is increased when the power steering is operating.
D
Malfunction of the power steering fluid pressure
switch
D
Open circuit or short-circuited harness wire in the
power steering fluid pressure switch circuit
D
Malfunction of the engine-ECU
NG
Repair
OK
Check the trouble symptoms.
NG
Replace the engine-ECU.
OK
Check the following connector:
A-96
NG
Repair
OK
Check the trouble symptoms.
NG
Check the harness wire between the
engine-ECU and the power steering fluid
pressure switch.
OK
Measure at the power steering fluid
pressure switch connector A-96.
D
Disconnect the connector, and
measure at the harness side.
D
Voltage between 1 and earth
(Ignition switch: ON)
OK:
System voltage
NG
Check the following connector:
B-53
NG
Repair
Check the power steering fluid pressure
switch. (Refer to GROUP 37A - On-ve-
hicle Service.)
NG
Replace
INSPECTION PROCEDURE 32
A/C switch and A/C relay system
Probable cause
When an A/C ON signal is input to the engine-ECU, the engine-ECU controls
the idle speed control servo to increase the idle speed, and also operates the
A/C compressor magnetic clutch.
D
Malfunction of the A/C control system
D
Malfunction of the A/C switch
D
Open circuit or short-circuited harness wire in the
A/C switch circuit
D
Malfunction of the engine-ECU
OK
Check the trouble symptoms.
NG
Replace the engine-ECU.
NG
Check A/C system. (Refer to GROUP
55 - On-vehicle Service.)
OK
Measure at the engine-ECU connectors
B-53, B-54.
D
Disconnect the connector, and
measure at the harness side.
D
Voltage between 8, 45 and earth
Ignition switch: ON
A/C switch: ON
OK:
System voltage
D
Short circuit between 8 and earth
Ignition switch: ON
A/C switch: ON
OK:
A/C compressor clutch
turns on.
OK
Check the following connectors:
B-53, B-54
NG
Repair
Check A/C compressor relay. (Refer to
GROUP 55 - On-vehicle Service.)
NG
Replace
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...