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GDI <4G6> -
Troubleshooting
13A-32
Code No.66 Brake vacuum sensor system
Probable cause
Range of check
D
Ignition switch: ON
Set conditions
D
Sensor output voltage is 4.8 V or more.
or
D
Sensor output voltage is 0.2 V or less.
D
Malfunction of the brake vacuum sensor
D
Improper connector contact, open circuit or
short-circuited harness wire of the brake vacuum
sensor
D
Malfunction of the engine-ECU
NG
Repair
NG
Repair
OK
Replace the engine-ECU.
NG
Repair
NG
Repair
Replace the brake vacuum sensor.
OK
Replace the engine-ECU.
OK
Check trouble symptom.
Check the following connectors:
A-09, A-27, B-53
NG
Repair
OK
NG
Check the harness wire between the
engine-ECU and the brake vacuum sen-
sor.
OK
NG
Check the harness wire between the
engine-ECU and the brake vacuum sen-
sor.
OK
Check trouble symptom.
NG
Check the harness wire between the
engine-ECU and the brake vacuum sen-
sor.
OK
Check the following connector:
A-09
OK
Check trouble symptom.
Measure at the brake vacuum sensor
connector A-09.
D
Connect the connector. (Use test
harness MB991348)
D
Voltage between 1 and earth
(After the engine is turned off
from idle speed, turn on the
ignition switch, and then depress
the brake pedal several times.
OK:
Voltage increases.
NG
Measure at the brake vacuum sensor
connector A-09.
D
Disconnect the connector, and
measure at the harness side.
D
Voltage between 3 and earth
(Ignition switch: ON)
OK:
4.8 - 5.2 V
D
Continuity between 2 and earth
OK:
Continuity
NG
Check the following connectors:
B-51, B-52, B-53
Repair
NG
Summary of Contents for Space Runner 1998
Page 35: ...ENGINE 4G6 11A ENGINE 4G9 11B 11A 1 ENGINE CONTENTS 11109000276...
Page 74: ...NOTES...
Page 354: ...NOTES...
Page 355: ...13C 1 FUEL SUPPLY CONTENTS 13509000197 GENERAL INFORMATION 2 FUEL TANK 3...
Page 418: ...NOTES...
Page 436: ...NOTES...
Page 460: ...NOTES...
Page 532: ...NOTES...
Page 567: ...REAR AXLE 2WD 27A REAR AXLE 4WD 27B 27A 1 REAR AXLE CONTENTS 27109000246...
Page 660: ...NOTES...
Page 714: ...NOTES...
Page 722: ...NOTES...
Page 732: ...NOTES...
Page 772: ...NOTES...
Page 912: ...NOTES...
Page 954: ...NOTES...