GDI <4G6> -
Troubleshooting
13A-14
INSPECTION PROCEDURE FOR DIAGNOSIS CODES
Code No. 11 Oxygen sensor (front) system
Probable cause
Range of check
D
3 minutes have passed after engine was started.
D
Engine coolant temperature is approx. 80
_
C or more.
D
Intake air temperature is 20- 50
_
C.
D
Engine speed is approx. 2,000- 3,000 r/min
D
Vehicle is moving at constant speed on a flat, level road surface
Set conditions
D
The oxygen sensor output voltage is around 0.6 V for 30 seconds (does not cross
0.6 V for 30 seconds).
D
When the range of check operations given above which accompany starting of
the engine are carried out four time in succession, a problem is detected after
each operation.
D
Malfunction of the oxygen sensor (front)
D
Improper connector contact, open circuit or
short-circuited harness wire
D
Malfunction of the engine-ECU
Check the oxygen sensor (front). (Refer to P.13A-109.)
NG
Replace
OK
Measure at the oxygen sensor (front) connector B-17.
D
Disconnect the connector, and measure at the
harness side.
(1) Voltage between 2 and earth (Ignition switch: ON)
OK:
System voltage
(2) Continuity between 4 and earth
OK:
Continuity
OK
(1) NG
Check theharness wire between theoxy-
gen sensor (front) and the engine control
relay connector, and repair if necessary.
(2) NG
Check the following connector:
B-54 NG
Repair
OK
Check trouble symptom.
NG
Check the harness wire between the en-
gine-ECU and the oxygen sensor con-
nector.
NG
Repair
OK
Replace the engine-ECU.
Measure at the engine-ECU connector B-54.
D
Disconnect the connector, and measure at the
harness side.
D
Voltage between 6 and earth (Ignition switch: ON)
OK:
System voltage
NG
Check the following connector:
B-17 NG
Repair
OK
Check the following connector:
B-54
NG
Repair
Check trouble symptom.
OK
OK
NG
Check the harness wire between the en-
gine-ECU and the oxygen sensor (front)
connector, and repair if necessary.
Check trouble symptom.
NG
Check the harness wire between the engine-ECU and
the oxygen sensor (front) connector.
NG
Repair
OK
Replace the engine-ECU.
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...
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Page 732: ...NOTES...
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