2004 INFINITI QX56 Factory Service Manual

Page 1785 of 3371

INFINITI QX56 2004  Factory Service Manual EC-594Revision: August 2007
IGNITION SIGNAL
2004 QX56
3. Check resistance between condenser terminals 1 and 2.
Removal and InstallationUBS00HD4
IGNITION COIL WITH POWER TRANSISTOR
Refer to EM-26, "IGN

Page 1786 of 3371

INFINITI QX56 2004  Factory Service Manual INJECTOR CIRCUIT
EC-595
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
INJECTOR CIRCUITPFP:16600
Component DescriptionUBS00HD5
The fuel injector is a small, precise solenoid valve. When the

Page 1787 of 3371

INFINITI QX56 2004  Factory Service Manual EC-596Revision: August 2007
INJECTOR CIRCUIT
2004 QX56
Wiring DiagramUBS00HD7
BBWA11 90 E

Page 1788 of 3371

INFINITI QX56 2004  Factory Service Manual INJECTOR CIRCUIT
EC-597
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by

Page 1789 of 3371

INFINITI QX56 2004  Factory Service Manual EC-598Revision: August 2007
INJECTOR CIRCUIT
2004 QX56
2. CHECK OVERALL FUNCTION
 With CONSULT-II
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.
3. Make sur

Page 1790 of 3371

INFINITI QX56 2004  Factory Service Manual INJECTOR CIRCUIT
EC-599
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
3. CHECK INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect injector harness connector.
3. Turn i

Page 1791 of 3371

INFINITI QX56 2004  Factory Service Manual EC-600Revision: August 2007
INJECTOR CIRCUIT
2004 QX56
6. CHECK INJECTOR
Refer to EC-600, "
Component Inspection"  .
OK or NG
OK >> GO TO 7.
NG >> Replace injector.
7. CHECK INTERMITTENT INCIDENT
Refe

Page 1792 of 3371

INFINITI QX56 2004  Factory Service Manual FUEL PUMP CIRCUIT
EC-601
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
FUEL PUMP CIRCUITPFP:17042
DescriptionUBS00HDB
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the sig