relay NISSAN 350Z 2007 Z33 Engine Control Workshop Manual

EC-6Revision: 2006 November2007 350Z On Board Diagnosis Logic ....................................528
DTC Confirmation Procedure ...............................529
Wiring Diagram .....................................................530
Diagnostic Procedure ...........................................534
Component Inspection ..........................................539
Removal and Installation ......................................539
DTC P1148, P1168 CLOSED LOOP CONTROL ....540
On Board Diagnosis Logic ....................................540
DTC P1211 TCS CONTROL UNIT ..........................541
Description ............................................................541
On Board Diagnosis Logic ....................................541
DTC Confirmation Procedure ...............................541
Diagnostic Procedure ...........................................541
DTC P1212 TCS COMMUNICATION LINE ............542
Description ............................................................542
On Board Diagnosis Logic ....................................542
DTC Confirmation Procedure ...............................542
Diagnostic Procedure ...........................................542
DTC P1217 ENGINE OVER TEMPERATURE ........543
Description ............................................................543
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................544
On Board Diagnosis Logic ....................................544
Overall Function Check ........................................545
Wiring Diagram .....................................................547
Diagnostic Procedure ...........................................549
Main 12 Causes of Overheating ...........................555
Component Inspection ..........................................556
DTC P1225, P1234 TP SENSOR ............................557
Component Description ........................................557
On Board Diagnosis Logic ....................................557
DTC Confirmation Procedure ...............................557
Diagnostic Procedure ...........................................558
Removal and Installation ......................................558
DTC P1226, P1235 TP SENSOR ............................559
Component Description ........................................559
On Board Diagnosis Logic ....................................559
DTC Confirmation Procedure ...............................559
Diagnostic Procedure ...........................................560
Removal and Installation ......................................560
DTC P1233, P2101 ELECTRIC THROTTLE CON-
TROL FUNCTION ...................................................561
Description ............................................................561
On Board Diagnosis Logic ....................................561
DTC Confirmation Procedure ...............................561
Wiring Diagram .....................................................562
Diagnostic Procedure ...........................................566
Component Inspection ..........................................570
Removal and Installation ......................................570
DTC P1236, P2118 THROTTLE CONTROL MOTOR .571
Component Description ........................................571
On Board Diagnosis Logic ....................................571
DTC Confirmation Procedure ...............................571
Wiring Diagram .....................................................572
Diagnostic Procedure ...........................................576
Component Inspection ..........................................579
Removal and Installation ......................................579
DTC P1238, P2119 ELECTRIC THROTTLE CON-
TROL ACTUATOR ..................................................580Component Description ........................................580
On Board Diagnosis Logic ....................................580
DTC Confirmation Procedure ................................580
Diagnostic Procedure ............................................581
DTC P1239, P2135 TP SENSOR ............................582
Component Description ........................................582
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................582
On Board Diagnosis Logic ....................................582
DTC Confirmation Procedure ................................583
Wiring Diagram .....................................................584
Diagnostic Procedure ............................................588
Component Inspection ..........................................590
Removal and Installation .......................................591
DTC P1290, P2100, P2103 THROTTLE CONTROL
MOTOR RELAY .......................................................592
Component Description ........................................592
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................592
On Board Diagnosis Logic ....................................592
DTC Confirmation Procedure ................................592
Wiring Diagram .....................................................594
Diagnostic Procedure ............................................597
DTC P1421 COLD START CONTROL ....................600
Description ............................................................600
On Board Diagnosis Logic ....................................600
DTC Confirmation Procedure ................................600
Diagnostic Procedure ............................................600
DTC P1564 ASCD STEERING SWITCH ................602
Component Description ........................................602
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................602
On Board Diagnosis Logic ....................................602
DTC Confirmation Procedure ................................603
Wiring Diagram .....................................................604
Diagnostic Procedure ............................................606
Component Inspection ..........................................609
DTC P1572 ASCD BRAKE SWITCH ......................610
Component Description ........................................610
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................610
On Board Diagnosis Logic ....................................610
DTC Confirmation Procedure ................................611
Wiring Diagram .....................................................612
Diagnostic Procedure ............................................615
Component Inspection ..........................................624
DTC P1574 ASCD VEHICLE SPEED SENSOR .....625
Component Description ........................................625
On Board Diagnosis Logic ....................................625
DTC Confirmation Procedure ................................625
Diagnostic Procedure ............................................626
DTC P1715 INPUT SPEED SENSOR (TURBINE
REVOLUTION SENSOR) ........................................627
Description ............................................................627
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................627
On Board Diagnosis Logic ....................................627
Diagnostic Procedure ............................................627
DTC P1805 BRAKE SWITCH .................................628

AIR CONDITIONING CUT CONTROL
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Revision: 2006 November2007 350Z
AIR CONDITIONING CUT CONTROLPFP:23710
Input/Output Signal ChartNBS0002L
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signal of engine speed and battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned OFF.

When the accelerator pedal is fully depressed.

When cranking the engine.

At high engine speeds.

When the engine coolant temperature becomes excessively high.

When operating power steering during low engine speed or low vehicle speed.

When engine speed is excessively low.

When refrigerant pressure is excessively low or high.
System DescriptionNBS006TJ
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.

When the accelerator pedal is fully depressed.

When cranking the engine.

At high engine speeds.

When the engine coolant temperature becomes excessively high.

When operating power steering during low engine speed or low vehicle speed.

When engine speed is excessively low.

When refrigerant pressure is excessively low or high.
Sensor Input Signal to ECM ECM function Actuator
Air conditioner switch
Air conditioner ON signal*
1
Air conditioner
cut controlAir conditioner relay Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
2
Engine coolant temperature sensor Engine coolant temperature
Refrigerant pressure sensor Refrigerant pressure
Power steering pressure sensor Power steering operation
Wheel sensor
Vehicle speed*
1
Battery
Battery voltage*2

EC-42
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Revision: 2006 November2007 350Z
7. CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-42, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
8. CHECK FUEL FILLER TUBE
Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.
OK or NG
OK >> GO TO 9.
NG >> Replace fuel filler tube.
9. CHECK ONE-WAY FUEL VALVE-I
Check one-way valve for clogging.
OK or NG
OK >> GO TO 10.
NG >> Repair or replace one-way fuel valve with fuel tank.
10. CHECK ONE-WAY FUEL VALVE-II
1. Make sure that fuel is drained from the tank.
2. Remove fuel filler tube and hose.
3. Check one-way fuel valve for operation as follows.
When a stick is inserted, the valve should open, when removing
stick it should close.
Do not drop any material into the tank.
OK or NG
OK >>INSPECTION END
NG >> Replace fuel filler tube or replace one-way fuel valve
with fuel tank.
Component InspectionNBS0002V
REFUELING EVAP VAPOR CUT VALVE
With CONSULT-III
1. Remove fuel tank. Refer to FL-10, "FUEL TANK" .
2. Drain fuel from the tank as follows:
a. Remove fuel feed hose located on the fuel gauge retainer.
b. Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other
side to a fuel container.
c. Drain fuel using “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT-III.
3. Check refueling EVAP vapor cut valve for being stuck to close as follows.
Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
4. Check refueling EVAP vapor cut valve for being stuck to open as follows.
a. Connect vacuum pump to hose end.
b. Remove fuel gauge retainer with fuel gauge unit.
Always replace O-ring with new one.
c. Put fuel tank upside down.
SEF665U

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)

TROUBLE DIAGNOSIS
EC-89
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Fail-safe ChartNBS0003F
When the DTC listed below is detected, the ECM enters fail-safe mode and the MIL lights up.
DTC No. Detected items Engine operating condition in fail-safe mode
P0102
P0103
P010C
P010DMass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118Engine coolant tempera-
ture sensor circuitEngine coolant temperature will be determined by ECM based on the time after turning
ignition switch ON or START.
CONSULT-III displays the engine coolant temperature decided by ECM.
ConditionEngine coolant temperature decided
(CONSULT-III display)
Just as ignition switch is turned
ON or START40°C (104°F)
More than approx. 4 minutes after
ignition ON or START80°C (176°F)
Except as shown above40 - 80°C (104 - 176°F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P0227
P0228
P1239
P2132
P2133
P2135Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1233
P2101Electric throttle control
functionECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1236
P2118Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1238
P2119Electric throttle control
actuator(When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops,
the engine stalls.
The engine can restart in N or P (A/T), Neutral (M/T) position, and engine speed will not
exceed 1,000 rpm or more.
P1290
P2100
P2103Throttle control motor relay
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2122
P2123
P2127
P2128
P2138Accelerator pedal position
sensorThe ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.

EC-104
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
2GThrottle control motor
(Open) (bank 1)[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T) or 1st (M/T)

Accelerator pedal: Fully depressed0 - 14V
[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T) or 1st (M/T)

Accelerator pedal: Fully released0 - 14V
3R/WThrottle control motor relay
power supply (bank 1)[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
4BRThrottle control motor
(Close) (bank 1)[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T) or 1st (M/T)

Accelerator pedal: In the middle of releasing
operation0 - 14V
5GY/LA/F sensor 1 heater
(bank 2)[Engine is running]

Warm-up condition

Idle speed
(More than 140 seconds after starting
engine)2.9 - 8.8
6 L/ORExhaust valve timing control
magnet retarder (bank 1)[Engine is running]

Warm-up condition

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

Warm-up condition

Around 2,500 rpm while the engine speed is
rising7 - 12V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB3539E
PBIB3540E
PBIB3541E
PBIB3538E
PBIB3542E

EC-106
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
21 GY/REVAP canister purge vol-
ume control solenoid valve[Engine is running]

Idle speed

Accelerator pedal: Not depressed even
slightly, after engine starting.BATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Engine speed: About 2,000 rpm (More than
100 seconds after starting engine)BATTERY VOLTAGE
(11 - 14V)
22 L/W Fuel pump relay[Ignition switch: ON]

For 1 second after turning ignition switch ON
[Engine is running]0 - 1.5V
[Ignition switch: ON]

More than 1 second after turning ignition
switch ON.BATTERY VOLTAGE
(11 - 14V)
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)
25 OR Throttle control motor relay[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]0 - 1.0V
29 G/WIntake valve timing control
solenoid valve (bank 2)[Engine is running]

Warm-up condition

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

Warm-up condition

Engine speed: 2,000 rpm7 - 12V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB3547E
PBIB3548E
PBIB3546E

TROUBLE DIAGNOSIS
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50 PU/WThrottle control motor
(Open) (bank 2)[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T) or 1st (M/T)

Accelerator pedal: Fully depressed0 - 14V
[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T) or 1st (M/T)

Accelerator pedal: Fully released0 - 14V
52 R/WThrottle control motor relay
power supply (bank 2)[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
53 P/L Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
57 L A/F sensor 1 (bank 1)[Ignition switch: ON]2.2V
58 Y/GExhaust valve timing control
position sensor (bank 1)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.4.0 - 5.0V
[Engine is running]

Warm-up condition

Engine speed: 2,000 rpm4.0 - 5.0V
59 BR/YCamshaft position sensor
(PHASE) (bank 1)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.3.0 - 5.0V
[Engine is running]

Engine speed: 2,000 rpm3.0 - 5.0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB3539E
PBIB3540E
PBIB3551E
PBIB3552E
PBIB3553E
PBIB3554E

EC-118
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-III screen in freeze frame data
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-119, "
Freeze Frame Data and 1st Trip Freeze Frame Data" .
*3: Always “CMPLT” is displayed.
INSPECTION PROCEDURE
Refer to GI-36, "CONSULT-III/GST CHECKING SYSTEM" .
WORK SUPPORT MODE
Work Item
ENGINE CONTROL COMPONENT PARTS
OUTPUT
Fuel injector××
Power transistor (Ignition timing)××
Throttle control motor relay××
Throttle control motor×
EVAP canister purge volume control
solenoid valve××××
Air conditioner relay×
Fuel pump relay×××
Cooling fan relay×××
Air fuel ratio (A/F) sensor 1 heater××
×*
3
Heated oxygen sensor 2 heater××
×*3
EVAP canister vent control valve×× ××
Intake valve timing control solenoid
valve×××
Exhaust valve timing control magnet
retarder×× ××
Calculated load value×× ItemDIAGNOSTIC TEST MODE
WORK
SUPPORTSELF-DIAGNOSTIC
RESULTS
DATA
MONI-
TORACTIVE
TESTDTC & SRT
CONFIRMATION
DTC*
1FREEZE
FRAME
DATA*
2
SRT STA-
TUSDTC
WORK
SUP-
PORT
WORK ITEM CONDITION USAGE
FUEL PRESSURE RELEASE

FUEL PUMP WILL STOP BY TOUCHING START DUR-
ING IDLING.
CRANK A FEW TIMES AFTER ENGINE STALLS.When releasing fuel pressure
from fuel line
IDLE AIR VOL LEARN

THE IDLE AIR VOLUME THAT KEEPS THE ENGINE
WITHIN THE SPECIFIED RANGE IS MEMORIZED IN
ECM.When learning the idle air volume
SELF-LEARNING CONT

THE COEFFICIENT OF SELF-LEARNING CONTROL
MIXTURE RATIO RETURNS TO THE ORIGINAL COEF-
FICIENT.When clearing the coefficient of
self-learning control value

EC-122
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
INT/V SOL(B1) [%]
The control value of the intake valve timing control
solenoid valve (determined by ECM according to the
input signals) is indicated.

The advance angle becomes larger as the value
increases. INT/V SOL(B2) [%]
EX VTC DTY B1 [%]

The control value of the exhaust valve timing control
magnet retarder (determined by ECM according to the
input signals) is indicated.

The retard angle becomes larger as the value
increases. EX VTC DTY B2 [%]
TP SEN 1-B2 [V]

The throttle position sensor signal voltage is dis-
played.
THRTL SEN 2-B2 signal is converted by ECM
internally. Thus, it differs from ECM terminal
voltage signal. TP SEN 2-B2 [V]
AIR COND RLY [ON/
OFF]

The air conditioner relay control condition (determined
by ECM according to the input signals) is indicated.
FUEL PUMP RLY [ON/
OFF]

Indicates the fuel pump relay control condition deter-
mined by ECM according to the input signals.
VENT CONT/V [ON/
OFF]

The control condition of the EVAP canister vent control
valve (determined by ECM according to the input sig-
nals) is indicated.
ON: Closed
OFF: Open
THRTL RELAY [ON/
OFF]

Indicates the throttle control motor relay control condi-
tion determined by the ECM according to the input sig-
nals.
COOLING FAN
[HI/LOW/OFF]

The control condition of the cooling fan (determined by
ECM according to the input signals) is indicated.
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S2 HTR (B1) [ON/
OFF]

Indicates [ON/OFF] condition of heated oxygen sensor
2 heater determined by ECM according to the input
signals. HO2S2 HTR (B2) [ON/
OFF]
I/P PULLY SPD
[rpm]

Indicates the engine speed computed from the turbine
revolution sensor signal.
VEHICLE SPEED
[km/h] or [mph]

Indicates the vehicle speed computed from the revolu-
tion sensor signal.
IDL A/V LEARN [YET/
CMPLT]

Display the condition of Idle Air Volume Learning
YET: Idle Air Volume Learning has not been performed
yet.
CMPLT: Idle Air Volume Learning has already been
performed successfully.
TRVL AFTER MIL [km]
or [mile]

Distance traveled while MIL is activated.
ENG OIL TEMP [°C] or
[°F]

The engine oil temperature (determined by the signal
voltage of the engine oil temperature sensor) is dis-
played.
A/F S1 HTR(B1) [%]

Indicates A/F sensor 1 heater control value computed
by ECM according to the input signals.

The current flow to the heater becomes larger as the
value increases. A/F S1 HTR(B2) [%]
AC PRESS SEN [V]

The signal voltage from the refrigerant pressure sen-
sor is displayed. Monitored item [Unit] Description Remarks