2008 INFINITI FX35 Service Manual

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Page 1993 of 3924

INFINITI FX35 2008 Service Manual
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER
EC-753
< SERVICE INFORMATION > [VK45DE]
C
D
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G H
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K L
M A
EC
NP
O
1. Check resistance between HO2S2 terminals as follows.
2. If NG, replace heated ox

Page 1994 of 3924

INFINITI FX35 2008 Service Manual
EC-754
< SERVICE INFORMATION >[VK45DE]
DTC P0075, P0081 IVT CO
NTROL SOLENOID VALVE
DTC P0075, P0081 IVT CONT ROL SOLENOID VALVE
Component DescriptionINFOID:0000000001326578
Intake valve timing contr

Page 1995 of 3924

INFINITI FX35 2008 Service Manual
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
EC-755
< SERVICE INFORMATION > [VK45DE]
C
D
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F
G H
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K L
M A
EC
NP
O
Wiring DiagramINFOID:0000000001326582
BANK 1
Specification data are reference value

Page 1996 of 3924

INFINITI FX35 2008 Service Manual
EC-756
< SERVICE INFORMATION >[VK45DE]
DTC P0075, P0081 IVT CO
NTROL SOLENOID VALVE
Do not use ECM ground terminals when measuring in put/output voltage. Doing so may result in dam-
age to the ECMs

Page 1997 of 3924

INFINITI FX35 2008 Service Manual
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
EC-757
< SERVICE INFORMATION > [VK45DE]
C
D
E
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G H
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K L
M A
EC
NP
O
BANK 2
Specification data are reference values
and are measured between each termi

Page 1998 of 3924

INFINITI FX35 2008 Service Manual
EC-758
< SERVICE INFORMATION >[VK45DE]
DTC P0075, P0081 IVT CO
NTROL SOLENOID VALVE
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis ProcedureINFOI

Page 1999 of 3924

INFINITI FX35 2008 Service Manual
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
EC-759
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
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K L
M A
EC
NP
O
Harness for open or short between intake valve timing control solenoid valve and

DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
EC-759
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Harness for open or short between intake valve timing control solenoid valve and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK INTAKE VALVE TIMING CONTROL SOLENO ID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN
AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following; ECM terminal 10 and intake valve timing control solenoid valve (Bank 1) terminal 1 or
ECM terminal 11 and intake valve timing control solenoid valve (Bank 2) terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EC-759, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace malfunctioning intake valve timing control solenoid valve.
5.CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
>> INSPECTION END
Component InspectionINFOID:0000000001326584
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
1. Disconnect intake valve timing control solenoid valve harness connector.
2. Check resistance between intake valve timing control solenoid
valve terminals as follows.
If NG, replace intake valve timing control solenoid valve.
If OK, go to next step.
3. Remove intake valve timing control solenoid valve.
4. Provide 12V DC between intake valve timing control solenoid valve terminals and then interrupt it. Make sure that the plunger
moves as shown in the figure.
CAUTION:
Do not apply 12V DC continuously for 5 seconds or more.
Doing so may result in damage to the coil in intake valve
timing control solenoid valve.
If NG, replace intake valve timing control solenoid valve.
NOTE:
Always replace O-ring when intake valve timing control
solenoid valve is removed. Continuity should exist.
Terminals Resistance
1 and 2 7.0 - 7.5 Ω [at 20 °C (68 °F)]
1 or 2 and ground ∞Ω
(Continuity should not exist)
PBIB0193E
PBIB2275E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 2000 of 3924

INFINITI FX35 2008 Service Manual
EC-760
< SERVICE INFORMATION >[VK45DE]
DTC P0075, P0081 IVT CO
NTROL SOLENOID VALVE
Removal and Installation
INFOID:0000000001326585
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EM-199.
3AA93

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