P0075 NISSAN 350Z 2007 Z33 Engine Control Workshop Manual

EC-2Revision: 2006 November2007 350Z DENT .......................................................................141
Description ............................................................141
Diagnostic Procedure ...........................................141
POWER SUPPLY AND GROUND CIRCUIT ...........142
Wiring Diagram .....................................................142
Diagnostic Procedure ...........................................145
Ground Inspection ................................................150
DTC U1000, U1001 CAN COMMUNICATION LINE .151
Description ............................................................151
On Board Diagnosis Logic ....................................151
DTC Confirmation Procedure ...............................151
Wiring Diagram .....................................................152
Diagnostic Procedure ...........................................153
DTC U1010 CAN COMMUNICATION .....................154
Description ............................................................154
On Board Diagnosis Logic ....................................154
DTC Confirmation Procedure ...............................154
Diagnostic Procedure ...........................................155
DTC P0011, P0021 IVT CONTROL ........................156
Description ............................................................156
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................156
On Board Diagnosis Logic ....................................157
DTC Confirmation Procedure ...............................157
Diagnostic Procedure ...........................................158
Component Inspection ..........................................159
Removal and Installation ......................................159
DTC P0014 P0024 EVT CONTROL ........................160
Description ............................................................160
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................160
On Board Diagnosis Logic ....................................161
DTC Confirmation Procedure ...............................161
Diagnostic Procedure ...........................................162
Component Inspection ..........................................164
Removal and Installation ......................................164
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER ..................................................................165
Description ............................................................165
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................165
On Board Diagnosis Logic ....................................165
DTC Confirmation Procedure ...............................165
Wiring Diagram .....................................................166
Diagnostic Procedure ...........................................170
Component Inspection ..........................................172
Removal and Installation ......................................172
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .173
Description ............................................................173
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................173
On Board Diagnosis Logic ....................................173
DTC Confirmation Procedure ...............................174
Wiring Diagram .....................................................175
Diagnostic Procedure ...........................................179
Component Inspection ..........................................181
Removal and Installation ......................................182
DTC P0075, P0081 IVT CONTROL SOLENOID
VALVE .....................................................................183Component Description ........................................183
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................183
On Board Diagnosis Logic ....................................183
DTC Confirmation Procedure ................................183
Wiring Diagram .....................................................184
Diagnostic Procedure ............................................188
Component Inspection ..........................................189
Removal and Installation .......................................189
DTC P0078 P0084 EVT CONTROL MAGNET
RETARDER .............................................................190
Component Description ........................................190
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................190
On Board Diagnosis Logic ....................................190
DTC Confirmation Procedure ................................190
Wiring Diagram .....................................................191
Diagnostic Procedure ............................................195
Component Inspection ..........................................196
Removal and Installation .......................................196
DTC P0101, P010B MAF SENSOR ........................197
Component Description ........................................197
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................197
On Board Diagnosis Logic ....................................197
DTC Confirmation Procedure ................................198
Overall Function Check .........................................198
Wiring Diagram .....................................................200
Diagnostic Procedure ............................................203
Component Inspection ..........................................206
Removal and Installation .......................................207
DTC P0102, P0103, P010C, P010D MAF SENSOR .208
Component Description ........................................208
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................208
On Board Diagnosis Logic ....................................208
DTC Confirmation Procedure ................................209
Wiring Diagram .....................................................210
Diagnostic Procedure ............................................213
Component Inspection ..........................................216
Removal and Installation .......................................217
DTC P0112, P0113 IAT SENSOR ............................218
Component Description ........................................218
On Board Diagnosis Logic ....................................218
DTC Confirmation Procedure ................................218
Wiring Diagram .....................................................219
Diagnostic Procedure ............................................220
Component Inspection ..........................................222
Removal and Installation .......................................222
DTC P0117, P0118 ECT SENSOR ..........................223
Component Description ........................................223
On Board Diagnosis Logic ....................................223
DTC Confirmation Procedure ................................224
Wiring Diagram .....................................................225
Diagnostic Procedure ............................................226
Component Inspection ..........................................228
Removal and Installation .......................................228
DTC P0122, P0123, P0227, P0228 TP SENSOR ...229
Component Description ........................................229

EC-8
INDEX FOR DTC
Revision: 2006 November2007 350Z
INDEX FOR DTCPFP:00024
DTC No. IndexNBS00027
NOTE:

If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-151, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .

If DTC U1010 is displayed with other DTC, first perform the trouble diagnosis for DTC U1010.
Refer to EC-154, "
DTC U1010 CAN COMMUNICATION" .
DTC*1
Items
(CONSULT-III screen terms)Reference page
CONSULT-III
GST*
2ECM*3
U1000
1000*4CAN COMM CIRCUITEC-151
U1001
1001*4CAN COMM CIRCUITEC-151
U1010 1010 CONTROL UNIT(CAN)EC-154
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
P0011 0011 INT/V TIM CONT-B1EC-156
P0014 0014 EXH/V TIM CONT-B1EC-160
P0021 0021 INT/V TIM CONT-B2EC-156
P0024 0024 EXH/V TIM CONT-B2EC-160
P0031 0031 A/F SEN1 HTR (B1)EC-165
P0032 0032 A/F SEN1 HTR (B1)EC-165
P0037 0037 HO2S2 HTR (B1)EC-173
P0038 0038 HO2S2 HTR (B1)EC-173
P0051 0051 A/F SEN1 HTR (B2)EC-165
P0052 0052 A/F SEN1 HTR (B2)EC-165
P0057 0057 HO2S2 HTR (B2)EC-173
P0058 0058 HO2S2 HTR (B2)EC-173
P0075 0075 INT/V TIM V/CIR-B1EC-183
P0078 0078 EX V/T MGT/RTDR-B1EC-190
P0081 0081 INT/V TIM V/CIR-B2EC-183
P0084 0084 EX V/T MGT/RTDR-B2EC-190
P0101 0101 MAF SEN/CIRCUIT-B1EC-197
P0102 0102 MAF SEN/CIRCUIT-B1EC-208
P0103 0103 MAF SEN/CIRCUIT-B1EC-208
P010B 010B MAF SEN/CIRCUIT-B2EC-197
P010C 010C MAF SEN/CIRCUIT-B2EC-208
P010D 010D MAF SEN/CIRCUIT-B2EC-208
P0112 0112 IAT SEN/CIRCUIT-B1EC-218
P0113 0113 IAT SEN/CIRCUIT-B1EC-218
P0117 0117 ECT SEN/CIRCEC-223
P0118 0118 ECT SEN/CIRCEC-223
P0122 0122 TP SEN 2/CIRC-B1EC-229
P0123 0123 TP SEN 2/CIRC-B1EC-229
P0125 0125 ECT SENSOREC-239
P0127 0127 IAT SENSOR-B1EC-243

INDEX FOR DTC
EC-15
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Revision: 2006 November2007 350ZEXH TIM SEN/CIR-B2 P1084 1084EC-528
EXH/V TIM CONT-B1 P0014 0014EC-160
EXH/V TIM CONT-B2 P0024 0024EC-160
FR/B SOLENOID/CIRC P1757 1757AT- 1 4 7
FTT SEN/CIRCUIT P0182 0182EC-348
FTT SEN/CIRCUIT P0183 0183EC-348
FTT SENSOR P0181 0181EC-344
FUEL LEV SEN SLOSH P0460 0460EC-490
FUEL LEVEL SENSOR P0461 0461EC-492
FUEL LEVL SEN/CIRC P0462 0462EC-494
FUEL LEVL SEN/CIRC P0463 0463EC-494
FUEL SYS-LEAN-B1 P0171 0171EC-324
FUEL SYS-LEAN-B2 P0174 0174EC-324
FUEL SYS-RICH-B1 P0172 0172EC-334
FUEL SYS-RICH-B2 P0175 0175EC-334
HLR/C SOL/CIRC P1767 1767AT- 1 5 1
HO2S2 (B1) P0137 0137EC-287
HO2S2 (B1) P0138 0138EC-298
HO2S2 (B1) P0139 0139EC-313
HO2S2 (B2) P0157 0157EC-287
HO2S2 (B2) P0158 0158EC-298
HO2S2 (B2) P0159 0159EC-313
HO2S2 HTR (B1) P0037 0037EC-173
HO2S2 HTR (B1) P0038 0038EC-173
HO2S2 HTR (B2) P0057 0057EC-173
HO2S2 HTR (B2) P0058 0058EC-173
I/C SOLENOID/CIRC P1752 1752AT- 1 4 5
IAT SEN/CIRCUIT-B1 P0112 0112EC-218
IAT SEN/CIRCUIT-B1 P0113 0113EC-218
IAT SENSOR-B1 P0127 0127EC-243
IN PULY SPEED P1715 1715EC-627
INT/V TIM CONT-B1 P0011 0011EC-156
INT/V TIM CONT-B2 P0021 0021EC-156
INT/V TIM V/CIR-B1 P0075 0075EC-183
INT/V TIM V/CIR-B2 P0081 0081EC-183
ISC SYSTEM P0506 0506EC-498
ISC SYSTEM P0507 0507EC-500
KNOCK SEN/CIRC-B1 P0327 0327EC-379
KNOCK SEN/CIRC-B1 P0328 0328EC-379
KNOCK SEN/CIRC-B2 P0332 0332EC-379
KNOCK SEN/CIRC-B2 P0333 0333EC-379
L/PRESS SOL/CIRC P0745 0745AT- 1 2 9
Items
(CONSULT-III screen terms)DTC*
1
Reference page
CONSULT-III
GST*
2ECM*3

EC-48
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 November2007 350Z
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected and demands the
driver to repair the malfunction.
Emission-related Diagnostic InformationNBS00031
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
×: Applicable —: Not applicable Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Items
(CONSULT-III screen terms)DTC*
1
SRT codeTest value/
Te s t l i m i t
(GST only)TripMIL lighting
upReference
page CONSULT-III
GST*
2ECM*3
CAN COMM CIRCUIT U1000
1000*5—— 1×EC-151
CAN COMM CIRCUIT U1001
1001*5—— 2 —EC-151
CONTROL UNIT(CAN) U1010 1010 — —1 (A/T)× (A/T)
EC-1542 (M/T) — (M/T)
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000—— —
Flashing*
7EC-63
INT/V TIM CONT-B1 P0011 0011 — — 2×EC-156
EXH/V TIM CONT-B1 P0014 0014 — — 2×EC-160
INT/V TIM CONT-B2 P0021 0021 — — 2×EC-156
EXH/V TIM CONT-B2 P0024 0024 — — 2×EC-160
A/F SEN1 HTR (B1) P0031 0031 —×2×EC-165
A/F SEN1 HTR (B1) P0032 0032 —×2×EC-165
HO2S2 HTR (B1) P0037 0037 —×2×EC-173
HO2S2 HTR (B1) P0038 0038 —×2×EC-173
A/F SEN1 HTR (B2) P0051 0051 —×2×EC-165
A/F SEN1 HTR (B2) P0052 0052 —×2×EC-165
HO2S2 HTR (B2) P0057 0057 —×2×EC-173
HO2S2 HTR (B2) P0058 0058 —×2×EC-173
INT/V TIM V/CIR-B1 P0075 0075 — — 2×EC-183
EX V/T MGT/RTDR-B1 P0078 0078 — — 2×EC-190
INT/V TIM V/CIR-B2 P0081 0081 — — 2×EC-183
EX V/T MGT/RTDR-B2 P0084 0084 — — 2×EC-190
MAF SEN/CIRCUIT-B1 P0101 0101 — — 2×EC-197
MAF SEN/CIRCUIT-B1 P0102 0102 — — 1×EC-208
MAF SEN/CIRCUIT-B1 P0103 0103 — — 1×EC-208
MAF SEN/CIRCUIT-B2 P010B 010B — — 2×EC-197
MAF SEN/CIRCUIT-B2 P010C 010C — — 1×EC-208
MAF SEN/CIRCUIT-B2 P010D 010D — — 1×EC-208
IAT SEN/CIRCUIT-B1 P0112 0112 — — 2×EC-218
IAT SEN/CIRCUIT-B1 P0113 0113 — — 2×EC-218
ECT SEN/CIRC P0117 0117 — — 1×EC-223
ECT SEN/CIRC P0118 0118 — — 1×EC-223
TP SEN 2/CIRC-B1 P0122 0122 — — 1×EC-229
TP SEN 2/CIRC-B1 P0123 0123 — — 1×EC-229

EC-88
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
2
P0031 P0032 P0051 P0052 Air fuel ratio (A/F) sensor 1 heater

P0037 P0038 P0057 P0058 Heated oxygen sensor 2 heater

P0075 P0081 Intake valve timing control solenoid valve

P0078 P0084 Exhaust valve timing control magnet retarder*

P0130 P0131 P0132 P0133 P0150 P0151 P0152 P0153 P2A00 P2A03 Air fuel ratio (A/F) sensor 1

P0137 P0138 P0139 P0158 P0159 Heated oxygen sensor 2

P0441 EVAP control system purge flow monitoring

P0443 P0444 P0445 EVAP canister purge volume control solenoid valve

P0447 P0448 EVAP canister vent control valve

P0451 P0452 P0453 EVAP control system pressure sensor

P0550 Power steering pressure sensor

P0603 ECM power supply

P0710 P0717 P0720 P0731 P0732 P0733 P0734 P0735 P0740 P0744 P0745 P1730 P1752 P1757 P1762 P1767
P1772 P1774 A/T related sensors, solenoid valves and switches

P1078 P1084 Exhaust valve timing control position sensor

P1217 Engine over temperature (OVERHEAT)

P1233 P2101 Electric throttle control function

P1236 P2118 Throttle control motor

P1290 P2103 P2103 Throttle control motor relay

P1805 Brake switch
3

P0011 P0021 Intake valve timing control

P0014 P0024 Exhaust valve timing control*

P0171 P0172 P0174 P0175 Fuel injection system function

P0300 - P0306 Misfire

P0420 P0430 Three way catalyst function

P0442 EVAP control system (SMALL LEAK)

P0455 EVAP control system (GROSS LEAK)

P0456 EVAP control system (VERY SMALL LEAK)

P0506 P0507 Idle speed control system

P1148 P1168 Closed loop control

P1211 TCS control unit

P1212 TCS communication line

P1238 P2119 Electric throttle control actuator

P1421 Cold start control

P1564 ASCD steering switch

P1572 ASCD brake switch

P1574 ASCD vehicle speed sensor

P1715 Turbine revolution sensor Priority Detected items (DTC)

DTC P0011, P0021 IVT CONTROL
EC-157
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EC
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 P0075, P0081 IVT CONTROL SOLENOID VALVE
EC-183
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Revision: 2006 November2007 350Z
DTC P0075, P0081 IVT CONTROL SOLENOID VALVEPFP:23796
Component DescriptionNBS000BR
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
CONSULT-III Reference Value in Data Monitor ModeNBS000BS
Specification data are reference values.
On Board Diagnosis LogicNBS000BT
DTC Confirmation ProcedureNBS000BU
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.
WITH CONSULT-III
1. Start engine and let it idle for 5 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-188, "
Diagnostic Procedure" .
WITH GST
Following the procedure “WITH CONSULT-III” above.
PBIB1842E
MONITOR ITEM CONDITION SPECIFICATION
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 loadIdle 0% - 2%
2,000 rpm Approx. 0% - 50%
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0075
0075
(Bank 1)
Intake valve timing control
solenoid valve circuitAn improper voltage is sent to the ECM
through intake valve timing control solenoid
valve.

Harness or connectors
(The intake valve timing control solenoid
valve circuit is open or shorted.)

Intake valve timing control solenoid valve P0081
0081
(Bank 2)

EC-184
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
Revision: 2006 November2007 350Z
Wiring DiagramNBS000BV
BANK 1
TBWT1621E

DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
EC-185
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EC
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)
18 W/GIntake valve timing control
solenoid valve (bank 1)[Engine is running]

Warm-up condition

Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Warm-up condition

Engine speed: 2,000 rpm7 - 12V
24 BR/YECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]

For a few seconds after turning ignition
switch OFF0 - 1.5V
[Ignition switch: OFF]

More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
125 R Power supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
PBIB3546E

EC-186
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
Revision: 2006 November2007 350Z
BANK 2
TBWT1622E