2006 INFINITI QX56 Factory Service Manual

warning light rear entertainment washer fluid wiper fluid power steering fluid trunk release

Page 1345 of 3383

INFINITI QX56 2006 Factory Service Manual EC-134Revision: November 2009
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
2006 QX56
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionUBS00L0F
The specification (SP) value indicates the toleranc

EC-134Revision: November 2009
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
2006 QX56
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionUBS00L0F
The specification (SP) value indicates the tolerance of the value that is displayed in “DATA MONITOR (SPEC)”
mode of CONSULT-II during normal operation of the Engine Control System. When the value in “DATA MONI-
TOR (SPEC) ” mode is within the SP value, the Engine Control System is confirmed OK. When the value in
“DATA MONITOR (SPEC) ” mode is NOT within the SP value, the Engine Control System may have one or
more malfunctions.
The SP value is used to detect malfunctions that may affect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:
B/FUEL SCHDL (The fuel injection pulse width programmed into ECM prior to any learned on board cor-
rection)
A/F ALPHA-B1/B2 (The mean value of air-fuel ratio feedback correction factor per cycle)
MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Testing ConditionUBS00L0G
Vehicle driven distance: More than 5,000 km (3,107 miles)
Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm2 , 14.25 - 15.12 psi)
Atmospheric temperature: 20 - 30 °C (68 - 86 °F)
Engine coolant temperature: 75 - 95 °C (167 - 203 °F)
Engine speed: Idle
Transmission: Warmed-up
–After the engine is warmed up to normal operating temperature, drive vehicle until “ATF TEMP SE 1” (A/T
fluid temperature sensor signal) indicates more than 60 °C (140 °F).
Electrical load: Not applied
–Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.
Inspection ProcedureUBS00L0H
NOTE:
Perform “DATA MONITOR (SPEC) ” mode in maximum scale display.
1. Perform EC-71, "
Basic Inspection" .
2. Confirm that the testing conditions indicated above are met.
3. Select “B/FUEL SCHDL ”, “A/F ALPHA-B1 ”, “A/F ALPHA-B2 ”
and “MAS A/F SE-B1 ” in “DATA MONITOR (SPEC) ” mode with
CONSULT-II.
4. Make sure that monitor items are within the SP value.
5. If NG, go to EC-135, "
Diagnostic Procedure" .
SEF601Z

Page 1346 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSIS - SPECIFICATION VALUEEC-135
C
DE
F
G H
I
J
K L
M A
EC
Revision: November 2009 2006 QX56
Diagnostic ProcedureUBS00L0I
OVERALL SEQUENCE
PBIB2268E

Page 1347 of 3383

INFINITI QX56 2006 Factory Service Manual EC-136Revision: November 2009
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
2006 QX56
PBIB2548E

Page 1348 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSIS - SPECIFICATION VALUEEC-137
C
DE
F
G H
I
J
K L
M A
EC
Revision: November 2009 2006 QX56
DETAILED PROCEDURE
1. CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1. Start engine.
2. Confirm

Page 1349 of 3383

INFINITI QX56 2006 Factory Service Manual EC-138Revision: November 2009
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
2006 QX56
5. CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil. NOTE:
This symptom may occur when a large amount of gasol

Page 1350 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSIS - SPECIFICATION VALUEEC-139
C
DE
F
G H
I
J
K L
M A
EC
Revision: November 2009 2006 QX56
10. DETECT MALFUNCTIONING PART
1. Check the following.
–Ignition coil and its circuit (Refer

Page 1351 of 3383

INFINITI QX56 2006 Factory Service Manual EC-140Revision: November 2009
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
2006 QX56
16. CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1. Start engine.
2. Select “A/F ALPHA-B1 ”, “A/F ALPHA-B2 ” in

Page 1352 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSIS - SPECIFICATION VALUEEC-141
C
DE
F
G H
I
J
K L
M A
EC
Revision: November 2009 2006 QX56
20. CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”, AND “B/FUEL SCHDL”
Select “A/F ALPHA-

Load next 8 pages

Page: < prev 1-10 ... 1313-1320 1321-1328 1329-1336 1337-1344 1345-1352 1353-1360 1361-1368 1369-1376 1377-1384 ... 3384 next >

AUX jack points radio controls deactivate airbag jump cable brake fluid