2007 NISSAN 350Z ignition

POWER SUPPLY AND GROUND CIRCUIT
EC-143
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
Specification data are reference values and are measured between each terminal and ground.
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.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
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)
53 P/L Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
125 R Power supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)

POWER SUPPLY AND GROUND CIRCUIT
EC-145
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
Specification data are reference values and are measured between each terminal and ground.
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.
Diagnostic ProcedureNBS0003Y
1. INSPECTION START
Start engine.
Is engine running?
Ye s o r N o
Ye s > > G O T O 8 .
No >> GO TO 2.
2. CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF and then ON.
2. Check voltage between ECM terminal 53 and ground with CON-
SULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M72, F102

Fuse block (J/B) connector M4

10A fuse

Harness for open or short between ECM and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
8 B/P ECM ground[Engine is running]

Idle speedBody ground
123
124B/W
B/RECM ground[Engine is running]

Idle speedBody ground
127
128B
BECM ground[Engine is running]

Idle speedBody ground
Voltage: Battery voltage
PBIB0070E

EC-146
POWER SUPPLY AND GROUND CIRCUIT
Revision: 2006 November2007 350Z
4. CHECK GROUND CONNECTIONS
Models with VDC system, navigation system or telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
Models without VDC system, navigation system and telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace ground connections.
5. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 8, 123, 124, 127, 128 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.
1. Body ground E17 2. Body ground E43 3. Body ground B102
:Vehicle front
1. Body ground E17 2. Body ground E43 3. Body ground F152
(Passenger side view with dash side
finisher removed)
:Vehicle front
PBIB3560E
PBIB3561E
Continuity should exist.

POWER SUPPLY AND GROUND CIRCUIT
EC-147
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
6. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M72, F102

Harness connectors F103, B113 (Models with VDC system, navigation system or telephone) or F151
(Models without VDC system, navigation system and telephone)

Harness connectors F3, E12

Harness for open or short between ECM and ground
>> Repair open circuit or short to power in harness or connectors.
7. CHECK ECM POWER SUPPLY CIRCUIT-II
1. Reconnect ECM harness connector disconnected.
2. Turn ignition switch ON.
3. Check voltage between IPDM E/R terminal 17 and ground with
CONSULT-III or tester.
OK or NG
OK >> Go to EC-698, "IGNITION SIGNAL" .
NG >> GO TO 8.
8. CHECK ECM POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON and then OFF.
3. Check voltage between ECM terminals 125 and ground with
CONSULT-III or tester.
OK or NG
OK >> GO TO 15.
NG (Battery voltage does not exist.)>>GO TO 9.
NG (Battery voltage exists for more than a few seconds.)>>GO TO
12.
9. CHECK ECM POWER SUPPLY CIRCUIT-IV
Check voltage between ECM terminal 24 and ground with CON-
SULT-III or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 12.Voltage: Battery voltage
PBIB1915E
Voltage: After turning ignition switch OFF, battery
voltage will exist for a few seconds, then
drop approximately 0V.
PBIB3587E
Voltage: Battery voltage
PBIB3467E

DTC U1000, U1001 CAN COMMUNICATION LINE
EC-151
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionNBS00040
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 LogicNBS006T0
*1: This self-diagnosis has the one trip detection logic.
*2: The MIL will not light up for this self-diagnosis.
DTC Confirmation ProcedureNBS006T1
1. Turn ignition switch ON and wait at least 3 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-153, "
Diagnostic Procedure" .
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
U1000*
1
1000*1
CAN communication
line

When ECM is not transmitting or receiving
CAN communication signal of OBD (emission-
related diagnosis) for 2 seconds or more.

Harness or connectors
(CAN communication line is open or
shorted)
U1001*
2
1001*2

When ECM is not transmitting or receiving
CAN communication signal other than OBD
(emission-related diagnosis) for 2 seconds or
more.

EC-154
DTC U1010 CAN COMMUNICATION
Revision: 2006 November2007 350Z
DTC U1010 CAN COMMUNICATIONPFP:23710
DescriptionNBS002VL
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 LogicNBS006T4

This self-diagnosis has one trip detection logic (A/T models).

The MIL will not light up for this self-diagnosis (M/T models).
DTC Confirmation ProcedureNBS002VN
WITH CONSULT-III
1. Turn ignition switch ON.
2. Check DTC.
3. If DTC is detected, go to EC-155, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U1010
1010CAN communication busWhen detecting error during the initial diagno-
sis of CAN controller of ECM.

ECM

DTC U1010 CAN COMMUNICATION
EC-155
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
Diagnostic ProcedureNBS002VO
1. INSPECTION START
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF-DIAG RESULTS” mode with CONSULT-III.
3. Touch “ERASE”.
4.Perform DTC Confirmation Procedure.
See EC-154, "
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-154, "
DTC Confirmation Procedure" .
4. Is the DTC U1010 displayed again?
Ye s o r N o
Ye s > > G O T O 2 .
No >>INSPECTION END
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
BL-152, "
ECM Re-communicating Function" .
3. Perform EC-76, "
VIN Registration" .
4. Perform EC-76, "
Exhaust Valve Timing Control Learning"
5. Perform EC-77, "Accelerator Pedal Released Position Learning" .
6. Perform EC-77, "
Throttle Valve Closed Position Learning" .
7. Perform EC-77, "
Idle Air Volume Learning" .
>>INSPECTION END

DTC P0011, P0021 IVT CONTROL
EC-157
C
D
E
F
G
H
I
J
K
L
MA
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.)