Infiniti G35 (V35). Manual — part 321
DTC U1010 CAN COMMUNICATION
EC-165
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EC
Diagnostic Procedure
NBS002W4
1.
INSPECTION START
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “SELF-DIAG RESULTS” mode with CONSULT-II.
3.
Touch “ERASE”.
4.
Perform DTC Confirmation Procedure.
See
EC-164, "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-164, "DTC Confirmation Procedure"
.
4.
Is the DTC U1010 displayed again?
Yes or No
Yes
>> GO TO 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-217, "ECM Re-Communicating Function"
3.
Perform
.
4.
Perform
EC-78, "Exhaust Valve Timing Control Learning (M/T models)"
5.
Perform
EC-79, "Accelerator Pedal Released Position Learning"
6.
Perform
EC-79, "Throttle Valve Closed Position Learning"
7.
Perform
EC-79, "Idle Air Volume Learning"
>> INSPECTION END
EC-166
DTC P0011, P0021 IVT CONTROL
DTC P0011, P0021 IVT CONTROL
PFP:23796
Description
NBS000O2
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN Communication line
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid
valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to
increase engine torque in low/mid speed range and output in high-speed range.
CONSULT-II Reference Value in Data Monitor Mode
NBS000O3
Specification data are reference values.
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed and piston position
Intake valve
timing control
Intake valve timing control
solenoid valve
Camshaft position sensor (PHASE)
Engine coolant temperature sensor
Engine coolant temperature
Wheel sensor
Vehicle speed*
PBIB3276E
MONITOR ITEM
CONDITION
SPECIFICATION
INT/V TIM(B1)
INT/V TIM(B2)
●
Engine: After warming up
●
Shift lever: P or N (A/T), Neutral
(M/T)
●
Air conditioner switch: OFF
●
No load
Idle
−
5
°
- 5
°
CA
When revving engine up to 2,000 rpm
quickly
Approx. 0
°
- 30
°
CA
INT/V SOL(B1)
INT/V SOL(B2)
●
Engine: After warming up
●
Shift lever: P or N (A/T), Neutral
(M/T)
●
Air conditioner switch: OFF
●
No load
Idle
0% - 2%
When revving engine up to 2,000 rpm
quickly
Approx. 0% - 50%
DTC P0011, P0021 IVT CONTROL
EC-167
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EC
On Board Diagnosis Logic
NBS000O4
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation Procedure
NBS000O5
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-191, "DTC P0075, P0081 IVT CONTROL SOLENOID VALVE"
●
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10V and 16V at
idle.
WITH CONSULT-II
1.
Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
2.
Start engine and warm it up to the normal operating tempera-
ture.
3.
Maintain the following conditions for at least 6 consecutive sec-
onds.
Hold the accelerator pedal as steady as possible.
4.
Let engine idle for 10 seconds.
5.
If 1st trip DTC is detected, go to
EC-168, "Diagnostic Procedure"
If 1st trip DTC is not detected, go to next step.
6.
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
intake 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 (A constant rotation is maintained.)
COOLAN TEMP/S
More than 60
°
C (140
°
F)
B/FUEL SCHDL
More than 7.26 msec
Shift lever
D position (A/T)
5th position (M/T)
ENG SPEED
1,700 - 3,175 rpm (A constant rotation is maintained.)
COOLAN TEMP/S
More than 70
°
C (158
°
F)
PBIB0164E
EC-168
DTC P0011, P0021 IVT CONTROL
7.
If 1st trip DTC is detected, go to
EC-168, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic Procedure
NBS000O6
1.
CHECK OIL PRESSURE WARNING LAMP
1.
Start engine.
2.
Check oil pressure warning lamp and confirm it is not illumi-
nated.
OK or NG
OK
>> GO TO 2.
NG
>> Go to
2.
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to
EC-170, "Component Inspection"
OK or NG
OK
>> GO TO 3.
NG
>> Replace malfunctioning intake valve timing control solenoid valve.
3.
CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to
EC-381, "Component Inspection"
OK or NG
OK
>> GO TO 4.
NG
>> Replace crankshaft position sensor (POS).
4.
CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to
EC-391, "Component Inspection"
OK or NG
OK
>> GO TO 5.
NG
>> Replace malfunctioning camshaft position sensor (PHASE).
Shift lever
1st or 2nd position
Driving location uphill
Driving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
PBIA8559J
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