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![INFINITI FX35 2006 Service Manual DTC U1000, U1001 CAN COMMUNICATION LINE EC-819
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DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionNBS004 INFINITI FX35 2006 Service Manual DTC U1000, U1001 CAN COMMUNICATION LINE EC-819
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DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionNBS004](/manual-img/42/57019/w960_57019-2202.png)
DTC U1000, U1001 CAN COMMUNICATION LINE EC-819
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DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionNBS0042J
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 LogicNBS0042K
*1: This self-diagnosis has the one trip detection logic.
*2: The MIL will not light up for this diagnosis.
DTC Confirmation ProcedureNBS0042L
1. Turn ignition switch ON and wait at least 3 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If 1st trip DTC is detected, go to EC-821, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
U1000*
1
1000*1CAN communication
line
ECM cannot communicate to other control
units.
ECM cannot communicate for more than the
specified time.
Harness or connectors
(CAN communication line is open or
shorted)
U1001*
2
1001*2
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EC-820
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DTC U1000, U1001 CAN COMMUNICATION LINE
Revision: 2006 December 2006 FX35/FX45
Wiring DiagramNBS0042M
TBWM1322E
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![INFINITI FX35 2006 Service Manual EC-822
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DTC U1010 CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
DTC U1010 CAN COMMUNICATIONPFP:23710
DescriptionNBS004K3
CAN (Controller Area Network) is a serial communication line INFINITI FX35 2006 Service Manual EC-822
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DTC U1010 CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
DTC U1010 CAN COMMUNICATIONPFP:23710
DescriptionNBS004K3
CAN (Controller Area Network) is a serial communication line](/manual-img/42/57019/w960_57019-2205.png)
EC-822
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DTC U1010 CAN COMMUNICATION
Revision: 2006 December 2006 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-823, "
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
Initializing CAN communication bus is mal-
functioning.
ECM
SEF058Y
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DTC P0011, P0021 IVT CONTROL EC-827
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Revision: 2006 December 2006 FX35/FX45
Wiring DiagramNBS0042S
BANK 1
TBWM1323E
Page 2216 of 4462
![INFINITI FX35 2006 Service Manual EC-832
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DTC P0011, P0021 IVT CONTROL
Revision: 2006 December 2006 FX35/FX45
5. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF INFINITI FX35 2006 Service Manual EC-832
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DTC P0011, P0021 IVT CONTROL
Revision: 2006 December 2006 FX35/FX45
5. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF](/manual-img/42/57019/w960_57019-2215.png)
EC-832
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DTC P0011, P0021 IVT CONTROL
Revision: 2006 December 2006 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-834, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace intake valve timing control position sensor. Continuity should exist.
Continuity should exist.
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![INFINITI FX35 2006 Service Manual DTC P0011, P0021 IVT CONTROL EC-833
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9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. INFINITI FX35 2006 Service Manual DTC P0011, P0021 IVT CONTROL EC-833
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9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.](/manual-img/42/57019/w960_57019-2216.png)
DTC P0011, P0021 IVT CONTROL EC-833
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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-834, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace intake valve timing control solenoid valve. Voltage: Battery voltage
PBIB1517E
PBIB0192E
Continuity should exist.
Page 2221 of 4462
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-837
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Revision: 2006 December 2006 FX35/FX45
Wiring DiagramNBS004KB
BANK 1
TBWM1371E
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![INFINITI FX35 2006 Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-841
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2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIR INFINITI FX35 2006 Service Manual DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-841
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2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIR](/manual-img/42/57019/w960_57019-2224.png)
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-841
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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.