2007 NISSAN 350Z bank 2

TROUBLE DIAGNOSIS
EC-111
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Revision: 2006 November2007 350Z68 BSensor ground
[Mass air flow sensor
(bank1), Intake air tempera-
ture sensor (bank 1)][Engine is running]
Warm-up condition

Idle speed0V
69 W Knock sensor (bank 2)[Engine is running]

Idle speed2.5V*
71 Y/BEngine coolant temperature
sensor[Engine is running]0 - 4.8V
Output voltage varies with
engine coolant temperature.
72 —Sensor ground
[Knock sensor (bank 1),
Knock sensor (bank 2)][Engine is running]

Warm-up condition

Idle speedApproximately 0V
73 W Knock sensor (bank 1)[Engine is running]

Idle speed2.5V*
76 W/RHeated oxygen sensor 2
(bank 1)[Engine is running]

Revving engine from idle to 3,000 rpm
quickly after the following conditions are
met.
–Engine: After warming up
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load.0 - 1.0V
77 L/WMass air flow sensor
(bank1)[Engine is running]

Warm-up condition

Idle speed0.8 - 1.1V
[Engine is running]

Warm-up condition

Engine speed: 2,500 rpm1.4 - 1.7V
78 G/WEngine oil temperature sen-
sor[Engine is running]0 - 4.8V
Output voltage varies with
engine oil temperature.
79 GY/RMass air flow sensor
(bank2)[Engine is running]

Warm-up condition

Idle speed0.8 - 1.1V
[Engine is running]

Warm-up condition

Engine speed: 2,500 rpm1.4 - 1.7V
80 R/YHeated oxygen sensor 2
(bank 2)[Engine is running]

Revving engine from idle to 3,000 rpm
quickly after the following conditions are
met.
–Engine: After warming up
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load.0 - 1.0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)

EC-112
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
81
82
85
86
89
90R/B
L/R
BR
W/B
G/Y
Y/RFuel injector No. 3
Fuel injector No. 6
Fuel injector No. 2
Fuel injector No. 5
Fuel injector No. 1
Fuel injector No. 4[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.BATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Warm-up condition

Engine speed: 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
83 GIntake air temperature sen-
sor (bank 2)[Engine is running]0 - 4.8V
Output voltage varies with intake
air temperature.
84 GSensor ground
(Heated oxygen sensor 2,
Engine coolant temperature
sensor, Engine oil tempera-
ture sensor)[Engine is running]

Warm-up condition

Idle speed0V
87 YPower steering pressure
sensor[Engine is running]

Steering wheel: Being turned0.5 - 4.5V
[Engine is running]

Steering wheel: Not being turned0.4 - 0.8V
88 LG/BSensor ground
[Exhaust valve timing con-
trol position sensor (bank 1),
Exhaust valve timing control
position sensor (bank 2)][Engine is running]

Warm-up condition

Idle speed0V
92 B/PSensor ground
[Camshaft position sensor
(PHASE) (bank 2)][Engine is running]

Warm-up condition

Idle speed0V
93 PPower supply for ECM
(Back-up)[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
94 L/YSensor ground
[Mass air flow sensor (bank
2)][Engine is running]

Warm-up condition

Idle speed0V
96 P/LSensor ground
[Camshaft position sensor
(PHASE) (bank 1), Power
steering pressure sensor][Engine is running]

Warm-up condition

Idle speed0V
97 RAccelerator pedal position
sensor 1[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully released0.5 - 1.0V
[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully depressed3.9 - 4.7V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB3555E
PBIB3556E

DTC P0011, P0021 IVT CONTROL
EC-157
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Revision: 2006 November2007 350Z
On Board Diagnosis LogicNBS00047
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation ProcedureNBS00048
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-183, "
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-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 consecutive 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-158, "
Diagnostic Procedure" .
If 1st trip DTC is not detected, go to next step.
7. Maintain the following conditions for at least 20 consecutive seconds.
8. Check 1st trip DTC.
9. If 1st trip DTC is detected, go to EC-158, "
Diagnostic Procedure" .
DTC No.Trouble diagnosis
nameDetecting condition Possible cause
P0011
0011
(Bank 1)
Intake valve timing
control performanceThere is a gap between angle of target and
phase-control angle degree.

Crankshaft position sensor (POS)

Camshaft position sensor (PHASE)

Intake valve timing 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.
ENG SPEED 500 - 2,000 rpm (A constant rotation is maintained.)
COOLANT TEMP/S More than 60°C (140°F)
B/FUEL SCHDL More than 3.5 msec
Shift lever P or N (A/T), neutral (M/T) position
ENG SPEED 1,700 - 3,175 rpm (A constant rotation is maintained.)
COOLANT TEMP/S More than 70°C (158°F)
Shift lever 1st or 2nd position
Driving location uphillDriving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)

DTC P0014 P0024 EVT CONTROL
EC-161
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Revision: 2006 November2007 350Z
On Board Diagnosis LogicNBS0004E
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation ProcedureNBS0004F
CAUTION:
Always drive at a safe speed.
NOTE:

If DTC P0014 or P0024 is displayed with DTC P0078, P0084, P1078 or P1084, first perform trouble
diagnosis for DTC P0078, P0084 or P1078, P1084. Refer to EC-190, "
DTC P0078 P0084 EVT CON-
TROL MAGNET RETARDER" or EC-528, "DTC P1078 P1084 EVT CONTROL POSITION SENSOR" .

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-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 consecutive 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-162, "
Diagnostic 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
nameDetecting condition Possible cause
P0014
0014
(Bank 1)
Exhaust valve timing
control performanceThere is a gap between angle of target and
phase-control angle degree.

Crankshaft position sensor (POS)

Camshaft position sensor (PHASE)

Exhaust valve timing control position sensor

Exhaust valve timing control magnet retarder

Accumulation of debris to the signal pick-up
portion of the camshaft

Timing chain installation

Exhaust valve timing control pulley assembly P0024
0024
(Bank 2)
Detected items Engine operating condition in fail-safe mode
Exhaust valve timing controlThe signal is not energized to the Exhaust valve timing control magnet retarder and the mag-
net retarder control does not function.
ENG SPEED 500 - 2,000 rpm (A constant rotation is maintained.)
COOLAN TEMP/S More than 60°C (140°F)
B/FUEL SCHDL More than 3.5 msec
Shift lever P or N (A/T), neutral (M/T) position
ENG SPEED 1,700 - 2,950 rpm (A constant rotation is maintained.)
COOLAN TEMP/S More than 70°C (158°F)
Shift lever 1st or 2nd position
Driving location uphillDriving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)

EC-162
DTC P0014 P0024 EVT CONTROL
Revision: 2006 November2007 350Z
8. Check 1st trip DTC.
9. If 1st trip DTC is detected, go to EC-162, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III” above.
Diagnostic ProcedureNBS0004G
1. INSPECTION START
Do you have CONSULT-III?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 3.
2. CHECK FUNCTION OF EXHAUST VALVE TIMING CONTROL-I
With CONSULT-III
1. Turn ignition switch ON.
2. Select “EXH V/T ANGLE” in “ACTIVE TEST” mode with CONSULT-III.
3. Start engine and keep the engine speed at 2,500 rpm, then touch “START”.
4. Make sure that the values of “EXH/V TIM B1” and “EXH/V TIM B2” change when touching “UP” or
“DOWN”.
OK or NG
OK >> GO TO 12.
NG >> GO TO 4.
3. CHECK FUNCTION OF EXHAUST VALVE TIMING CONTROL-II
Without CONSULT-III
1. Start engine and keep the engine speed at 2,500 rpm, then touch “START”.
2. Read the voltage signal between ECM terminal 6 (bank 1), 7 (bank 2) and ground with oscilloscope.
3. Verify that the oscilloscope screen shows the signal wave as shown below.
OK or NG
OK >> GO TO 12.
NG >> GO TO 4.
4. CHECK EXHAUST VALVE TIMING CONTROL MAGNET RETARDER
Refer to EC-164, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. REPLACE EXHAUST VALVE TIMING CONTROL MAGNET RETARDER
1. Replace exhaust valve timing control magnet retarder.
2. Perform EC-76, "
Exhaust Valve Timing Control Learning" .
>>INSPECTION END
PBIB3542E

DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-165
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Revision: 2006 November2007 350Z
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATERPFP:22693
DescriptionNBS000B6
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating
condition to keep the temperature of A/F sensor 1 element at the specified range.
CONSULT-III Reference Value in Data Monitor ModeNBS000B7
Specification data are reference values.
On Board Diagnosis LogicNBS000B8
DTC Confirmation ProcedureNBS000B9
NOTE:
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 10.5V and 16V at
idle.
WITH CONSULT-III
1. Start engine and let it idle for at least 10 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-170, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III” above.
Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speedAir fuel ratio (A/F)
sensor 1 heater
controlAir fuel ratio (A/F) sensor 1 heater
Mass air flow sensor Amount of intake air
MONITOR ITEM CONDITION SPECIFICATION
A/F S1 HTR(B1)
A/F S1 HTR(B2)

Engine: After warming up, idle the engine
(More than 140 seconds after starting engine)4 - 100%
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0031
0031
(Bank 1)Air fuel ratio (A/F) sensor
1 heater control circuit
low inputThe current amperage in the air fuel ratio (A/F)
sensor 1 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the A/F sensor 1 heater.)

Harness or connectors
(The A/F sensor 1 heater circuit is
open or shorted.)

Air fuel ratio (A/F) sensor 1 heater P0051
0051
(Bank 2)
P0032
0032
(Bank 1)Air fuel ratio (A/F) sensor
1 heater control circuit
high inputThe current amperage in the air fuel ratio (A/F)
sensor 1 heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the A/F sensor 1 heater.)

Harness or connectors
(The A/F sensor 1 heater circuit is
shorted.)

Air fuel ratio (A/F) sensor 1 heater P0052
0052
(Bank 2)

EC-166
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Revision: 2006 November2007 350Z
Wiring DiagramNBS000BA
BANK 1
TBWT1617E

DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-167
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Revision: 2006 November2007 350Z
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1W/RA/F sensor 1 heater
(bank 1)[Engine is running]

Warm-up condition

Idle speed
(More than 140 seconds after starting
engine)2.9 - 8.8V
57 L A/F sensor 1 (bank 1)[Ignition switch: ON]2.2V
61 R A/F sensor 1 (bank 1)[Ignition switch: ON]

Warm-up condition

Engine speed: 2,000 rpm1.8V
Output voltage varies with air
fuel ratio.
PBIB3538E