Page 2197 of 4366
DTC U1000, U1001 CAN COMMUNICATION LINE EC-821
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS0042M
TBWM1322E
Page 2199 of 4366
![INFINITI FX35 2007 Service Manual DTC U1010 CAN COMMUNICATION EC-823
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
DTC U1010 CAN COMMUNICATIONPFP:23710
DescriptionNBS004K3
CAN (Controller Area Net INFINITI FX35 2007 Service Manual DTC U1010 CAN COMMUNICATION EC-823
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
DTC U1010 CAN COMMUNICATIONPFP:23710
DescriptionNBS004K3
CAN (Controller Area Net](/manual-img/42/57018/w960_57018-2198.png)
DTC U1010 CAN COMMUNICATION EC-823
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
DTC U1010 CAN COMMUNICATIONPFP:23710
DescriptionNBS004K3
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 speed 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 CAN 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 Diagnosis LogicNBS004K4
This self-diagnosis has the one trip detection logic.
DTC Confirmation ProcedureNBS004K5
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If DTC is detected, go to EC-824, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
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
SEF058Y
Page 2204 of 4366
EC-828
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS0042S
BANK 1
TBWM1323E
Page 2209 of 4366
![INFINITI FX35 2007 Service Manual DTC P0011, P0021 IVT CONTROL EC-833
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
5. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND INFINITI FX35 2007 Service Manual DTC P0011, P0021 IVT CONTROL EC-833
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
5. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND](/manual-img/42/57018/w960_57018-2208.png)
DTC P0011, P0021 IVT CONTROL EC-833
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
5. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between intake valve timing control position sensor terminal 1 and ground. Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F102, M82
Harness for open or short between intake valve timing control position sensor and ground
>> Repair open circuit or short to power in harness or connectors.
7. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN
AND SHORT 1. Disconnect ECM harness connector.
2. Check harness continuity between the following; ECM terminal 72 and intake valve timing control position sensor (Bank 1) terminal 2 or
ECM terminal 53 and intake valve timing control position sensor (Bank 2) terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR
Refer to EC-835, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace malfunctioning intake valve timing control position sensor. Continuity should exist.
Continuity should exist.
Page 2210 of 4366
![INFINITI FX35 2007 Service Manual EC-834
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2006 July 2007 FX35/FX45
9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Reconnect ECM harness connector.
2. Discon INFINITI FX35 2007 Service Manual EC-834
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2006 July 2007 FX35/FX45
9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Reconnect ECM harness connector.
2. Discon](/manual-img/42/57018/w960_57018-2209.png)
EC-834
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2006 July 2007 FX35/FX45
9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Reconnect ECM harness connector.
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check voltage between intake valve timing control solenoid valve terminal 2 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E19, F49
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.
11 . CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Disconnect ECM harness connector.
2. 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.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
12. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EC-835, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace malfunctioning intake valve timing control solenoid valve. Voltage: Battery voltage
PBIB1517E
PBIB0192E
Continuity should exist.
Page 2214 of 4366
EC-838
[VK45DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS004KB
BANK 1
TBWM1371E
Page 2218 of 4366
![INFINITI FX35 2007 Service Manual EC-842
[VK45DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 July 2007 FX35/FX45
2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) se INFINITI FX35 2007 Service Manual EC-842
[VK45DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 July 2007 FX35/FX45
2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) se](/manual-img/42/57018/w960_57018-2217.png)
EC-842
[VK45DE]
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 July 2007 FX35/FX45
2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check voltage between A/F sensor 1 terminal 3 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E19, F49
IPDM E/R connector E7
10A fuse
Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
4. CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following; ECM terminal 2 and A/F sensor 1 (Bank 1) terminal 4 or
ECM terminal 24 and A/F sensor 1 (Bank 2) terminal 4.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
: Vehicle front 1. A/F sensor 1 (Bank 2)
harness connector 2. A/F sensor 1 (Bank 1)
harness connector
Voltage: Battery voltage
PBIB3246E
PBIB1683E
Continuity should exist.
Page 2222 of 4366
EC-846
[VK45DE]
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS00438
BANK 1
TBWM1325E