2008 INFINITI FX35 Service Manual

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Page 1385 of 3924

INFINITI FX35 2008 Service Manual
POWER SUPPLY AND GROUND CIRCUITEC-145
< SERVICE INFORMATION > [VQ35DE]
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Electronically controlled circuits are very sensitive
to proper grounding. A loose or corroded

Page 1386 of 3924

INFINITI FX35 2008 Service Manual
EC-146
< SERVICE INFORMATION >[VQ35DE]
DTC U1000, U1001 CAN COMMUNICATION LINE
DTC U1000, U1001 CAN COMMUNICATION LINE
DescriptionINFOID:0000000001325949
CAN (Controller Area Network) is a serial com

Page 1387 of 3924

INFINITI FX35 2008 Service Manual
DTC U1000, U1001 CAN COMMUNICATION LINEEC-147
< SERVICE INFORMATION > [VQ35DE]
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Wiring DiagramINFOID:0000000001325952
Diagnosis ProcedureINFOID:0000000001325953
Go to

Page 1388 of 3924

INFINITI FX35 2008 Service Manual
EC-148
< SERVICE INFORMATION >[VQ35DE]
DTC U1010 CAN COMMUNICATION
DTC U1010 CAN COMMUNICATION
DescriptionINFOID:0000000001325954
CAN (Controller Area Network) is a serial communication
line for rea

EC-148
< SERVICE INFORMATION >[VQ35DE]
DTC U1010 CAN COMMUNICATION
DTC U1010 CAN COMMUNICATION
DescriptionINFOID:0000000001325954
CAN (Controller Area Network) is a serial communication
line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagn osis LogicINFOID:0000000001325955
This self-diagnosis has the one trip detection logic.
DTC Confirmation ProcedureINFOID:0000000001325956
1. Turn ignition switch ON.
2. Check DTC.
3. If DTC is detected, go to EC-148, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001325957
1.INSPECTION START
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF-DIAG RESULTS” mode with CONSULT-III.
3. Touch “ERASE”.
4. Perform DTC Confirmation Procedure.
See EC-148, "
DTC Confirmation Procedure".
5. Is the DTC U1010 displayed again?
With GST
1. Turn ignition switch ON.
2. Select Service $04 with GST.
3. Perform DTC Confirmation Procedure.
See EC-148, "
DTC Confirmation Procedure".
4. Is the DTC U1010 displayed again?
Ye s o r N o
Ye s > > G O T O 2 .
No >> INSPECTION END
2.REPLACE ECM
1. Replace ECM.
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.
Refer to BL-187, "
ECM Re-Communicating Function".
3. Perform EC-84, "
VIN Registration".
4. Perform EC-85, "
Accelerator Pedal Released Position Learning".
5. Perform EC-85, "
Throttle Valve Closed Position Learning".
6. Perform EC-85, "
Idle Air Volume Learning".
>> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U1010
1010 CAN communication bus When detecting error during the initial diagno-
sis of CAN controller of ECM.
ECM
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 1389 of 3924

INFINITI FX35 2008 Service Manual
DTC P0011, P0021 IVT CONTROL
EC-149
< SERVICE INFORMATION > [VQ35DE]
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DTC P0011, P0021 IVT CONTROL
DescriptionINFOID:0000000001325958
SYSTEM DESCRIPTION
*: This signal

Page 1390 of 3924

INFINITI FX35 2008 Service Manual
EC-150
< SERVICE INFORMATION >[VQ35DE]
DTC P0011, P0021 IVT CONTROL
On Board Diagn osis Logic
INFOID:0000000001325960
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
D

EC-150
< SERVICE INFORMATION >[VQ35DE]
DTC P0011, P0021 IVT CONTROL
On Board Diagn osis Logic
INFOID:0000000001325960
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation ProcedureINFOID:0000000001325961
CAUTION:
Always drive at a safe speed.
NOTE:
If DTC P0011 or P0021 is displayed with DTC P0075 or P0081, first perform trouble diagnosis for DTC
P0075 or P0081. Refer to EC-168
.
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confir m that battery voltage is between 10V and 16V at
idle.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Maintain the following conditions for at least 6 c onsecutive seconds. Hold the accelerator pedal as steady
as possible.
4. Let engine idle for 10 seconds.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-151, "
Diagnosis Procedure".
If 1st trip DTC is not detected, go to next step.
7. Maintain the following conditions for at least 20 consecutive seconds.
DTC No. Trouble diagnosis
name Detecting condition Possible cause
P0011
0011
(Bank 1) Intake valve timing
control performance There is a gap between angle of target and
phase-control angle degree. Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Intake valve control solenoid valve
Accumulation of debris to the signal pick-up
portion of the camshaft
Timing chain installation
Foreign matter caught in the oil groove for in- take valve timing control
P0021
0021
(Bank 2)
Detected items Engine operating condition in fail-safe mode
Intake valve timing control The signal is not energized to the solenoid valve and the valve control does not function.
VHCL SPEED SE 100 - 120 km/h (63 - 75 MPH)
ENG SPEED 1,200 - 2,000 rpm
COOLAN TEMP/S More than 60 °C (140 °F)
B/FUEL SCHDL More than 7.26 msec
Selector lever D position
ENG SPEED 1,700 - 3,175 rpm (A cons tant rotation is maintained.)
COOLAN TEMP/S More than 70 °C (158 °F)
Selector lever 1st or 2nd position
Driving location uphill Driving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 1391 of 3924

INFINITI FX35 2008 Service Manual
DTC P0011, P0021 IVT CONTROL
EC-151
< SERVICE INFORMATION > [VQ35DE]
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8. Check 1st trip DTC.
9. If 1st trip DTC is detected, go to
EC-151, "
Diagnosis Procedure".
WIT

Page 1392 of 3924

INFINITI FX35 2008 Service Manual
EC-152
< SERVICE INFORMATION >[VQ35DE]
DTC P0011, P0021 IVT CONTROL
Yes >> Check timing chain installation. Refer to
EM-64.
No >> GO TO 7.
7.CHECK LUBRICATION CIRCUIT
Refer to EM-65, "
Removal and

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