P1239 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

INDEX FOR DTC
EC-11
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350ZP1148 1148 CLOSED LOOP-B1EC-540
P1168 1168 CLOSED LOOP-B2EC-540
P1211 1211 TCS C/U FUNCTNEC-541
P1212 1212 TCS/CIRCEC-542
P1217 1217 ENG OVER TEMPEC-543
P1225 1225 CTP LEARNING-B1EC-557
P1226 1226 CTP LEARNING-B1EC-559
P1233 1233 ETC FUNCTION/CIRC-B2EC-561
P1234 1234 CTP LEARNING-B2EC-557
P1235 1235 CTP LEARNING-B2EC-559
P1236 1236 ETC MOT-B2EC-571
P1238 1238 ETC ACTR-B2EC-580
P1239 1239 TP SENSOR-B2EC-582
P1290 1290 ETC MOT PWR-B2EC-592
P1421 1421 COLD START CONTROLEC-600
P1564 1564 ASCD SWEC-602
P1572 1572 ASCD BRAKE SWEC-610
P1574 1574 ASCD VHL SPD SENEC-625
P1610 - P1615 1610 - 1615 NATS MALFUNCTIONEC-46
P1715 1715 IN PULY SPEEDEC-627
P1730 1730 A/T INTERLOCKAT- 1 4 1
P1752 1752 I/C SOLENOID/CIRCAT- 1 4 5
P1757 1757 FR/B SOLENOID/CIRCAT- 1 4 7
P1762 1762 D/C SOLENOID/CIRCAT- 1 4 9
P1767 1767 HLR/C SOL/CIRCAT- 1 5 1
P1772 1772 LC/B SOLENOID/CIRCAT- 1 5 3
P1774 1774 LC/B SOLENOID FNCTAT- 1 5 5
P1805 1805 BRAKE SW/CIRCUITEC-628
P2100 2100 ETC MOT PWR-B1EC-592
P2101 2101 ETC FUNCTION/CIRC-B1EC-561
P2103 2103 ETC MOT PWREC-592
P 2 11 8 2 11 8 E T C M O T- B 1EC-571
P 2 11 9 2 11 9 E T C A C T R - B 1EC-580
P2122 2122 APP SEN 1/CIRCEC-633
P2123 2123 APP SEN 1/CIRCEC-633
P2127 2127 APP SEN 2/CIRCEC-641
P2128 2128 APP SEN 2/CIRCEC-641
P2132 2132 TP SEN 1/CIRC-B2EC-361
P2133 2133 TP SEN 1/CIRC-B2EC-361
P2135 2135 TP SENSOR-B1EC-582
P2138 2138 APP SENSOREC-650
DTC*1
Items
(CONSULT-III screen terms)Reference page
CONSULT-III
GST*
2ECM*3

EC-16
INDEX FOR DTC
Revision: 2006 November2007 350Z
*1: 1st trip DTC No. is the same as DTC No.LC/B SOLENOID FNCT P1774 1774AT-155
LC/B SOLENOID/CIRC P1772 1772AT-153
MAF SEN/CIRCUIT-B1 P0101 0101EC-197
MAF SEN/CIRCUIT-B1 P0102 0102EC-208
MAF SEN/CIRCUIT-B1 P0103 0103EC-208
MAF SEN/CIRCUIT-B2 P010B 010BEC-197
MAF SEN/CIRCUIT-B2 P010C 010CEC-208
MAF SEN/CIRCUIT-B2 P010D 010DEC-208
MULTI CYL MISFIRE P0300 0300EC-371
NATS MALFUNCTION P1610 - P1615 1610 - 1615EC-46
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000 —
P-N POS SW/CIRCUIT P0850 0850EC-520
PNP SW/CIRC P0705 0705AT-102
PURG VOLUME CONT/V P0443 0443EC-423
PURG VOLUME CONT/V P0444 0444EC-431
PURG VOLUME CONT/V P0445 0445EC-431
PW ST P SEN/CIRC P0550 0550EC-502
SENSOR POWER/CIRC P0643 0643EC-514
TCC SOLENOID/CIRC P0740 0740AT-125
TCM P0700 0700AT-101
TCS C/U FUNCTN P1211 1211EC-541
TCS/CIRC P1212 1212EC-542
THERMSTAT FNCTN P0128 0128EC-246
TP SEN 1/CIRC-B1 P0222 0222EC-361
TP SEN 1/CIRC-B1 P0223 0223EC-361
TP SEN 1/CIRC-B2 P2132 2132EC-361
TP SEN 1/CIRC-B2 P2133 2133EC-361
TP SEN 2/CIRC-B1 P0122 0122EC-229
TP SEN 2/CIRC-B1 P0123 0123EC-229
TP SEN 2/CIRC-B2 P0227 0227EC-229
TP SEN 2/CIRC-B2 P0228 0228EC-229
TP SENSOR-B1 P2135 2135EC-582
TP SENSOR-B2 P1239 1239EC-582
TURBINE SENSOR P0717 0717AT- 11 3
TW CATALYST SYS-B1 P0420 0420EC-406
TW CATALYST SYS-B2 P0430 0430EC-406
VEH SPD SEN/CIR AT P0720 0720AT-108
VEH SPEED SEN/CIRC P0500 0500EC-496
VENT CONTROL VALVE P0447 0447EC-437
VENT CONTROL VALVE P0448 0448EC-444
Items
(CONSULT-III screen terms)DTC*
1
Reference page
CONSULT-III
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-51
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350ZEXH TIM SEN/CIR-B1 P1078 1078 — — 2×EC-528
EXH TIM SEN/CIR-B2 P1084 1084 — — 2×EC-528
CLOSED LOOP-B1 P1148 1148 — — 1×EC-540
CLOSED LOOP-B2 P1168 1168 — — 1×EC-540
TCS C/U FUNCTN P1211 1211 — — 2 —EC-541
TCS/CIRC P1212 1212 — — 2 —EC-542
ENG OVER TEMP P1217 1217 — — 1×EC-543
CTP LEARNING-B1 P1225 1225 — — 2 —EC-557
CTP LEARNING-B1 P1226 1226 — — 2 —EC-559
ETC FUNCTION/CIRC-B2 P1233 1233 — — 1×EC-561
CTP LEARNING-B2 P1234 1234 — — 2 —EC-557
CTP LEARNING-B2 P1235 1235 — — 2 —EC-559
ETC MOT-B2 P1236 1236 — — 1×EC-571
ETC ACTR-B2 P1238 1238 — — 1×EC-580
TP SENSOR-B2 P1239 1239 — — 1×EC-582
ETC MOT PWR-B2 P1290 1290 — — 1×EC-592
COLD START CONTROL P1421 1421 — — 2×EC-600
ASCD SW P1564 1564 — — 1 —EC-602
ASCD BRAKE SW P1572 1572 — — 1 —EC-610
ASCD VHL SPD SEN P1574 1574 — — 1 —EC-625
NATS MALFUNCTIONP1610 -
P16151610 - 1615 — — 2 —EC-46
IN PULY SPEED P1715 1715 — — 2 —EC-627
A/T INTERLOCK P1730 1730 — — 1×AT- 1 4 1
I/C SOLENOID/CIRC P1752 1752 — — 1×AT- 1 4 5
FR/B SOLENOID/CIRC P1757 1757 — — 1×AT- 1 4 7
D/C SOLENOID/CIRC P1762 1762 — — 1×AT- 1 4 9
HLR/C SOL/CIRC P1767 1767 — — 1×AT- 1 5 1
LC/B SOLENOID/CIRC P1772 1772 — — 1×AT- 1 5 3
LC/B SOLENOID FNCT P1774 1774 — — 1×AT- 1 5 5
BRAKE SW/CIRCUIT P1805 1805 — — 2 —EC-628
ETC MOT PWR-B1 P2100 2100 — — 1×EC-592
ETC FUNCTION/CIRC-B1 P2101 2101 — — 1×EC-561
ETC MOT PWR P2103 2103 — — 1×EC-592
ETC MOT-B1 P2118 2118 — — 1×EC-571
ETC ACTR-B1 P2119 2119 — — 1×EC-580
APP SEN 1/CIRC P2122 2122 — — 1×EC-633
APP SEN 1/CIRC P2123 2123 — — 1×EC-633
APP SEN 2/CIRC P2127 2127 — — 1×EC-641
APP SEN 2/CIRC P2128 2128 — — 1×EC-641
TP SENSOR2/CIRC-B2 P2132 2132 — — 1×EC-361
TP SENSOR2/CIRC-B2 P2133 2133 — — 1×EC-361
TP SENSOR-B1 P2135 2135 — — 1×EC-582
Items
(CONSULT-III screen terms)DTC*
1
SRT codeTest value/
Test limit
(GST only)TripMIL lighting
upReference
page CONSULT-III
GST*
2ECM*3

TROUBLE DIAGNOSIS
EC-87
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
DTC Inspection Priority ChartNBS0003E
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
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 diagnosis for DTC U1010.
Refer to EC-154, "
DTC U1010 CAN COMMUNICATION".
Priority Detected items (DTC)
1

U1000 U1001 CAN communication line

U1010 CAN communication

P0101 P0102 P0103 P010B P010C P010D Mass air flow sensor

P0112 P0113 P0127 Intake air temperature sensor

P0117 P0118 P0125 Engine coolant temperature sensor

P0122 P0123 P0222 P0223 P0227 P0228 P1225 P1226 P1234 P1235 P1239 P2132 P2133 P2135 Throttle position
sensor

P0128 Thermostat function

P0181 P0182 P0183 Fuel tank temperature sensor

P0196 P0197 P0198 Engine oil temperature sensor

P0327 P0328 P0332 P0333 Knock sensor

P0335 Crankshaft position sensor (POS)

P0340 P0345 Camshaft position sensor (PHASE)

P0460 P0461 P0462 P0463 Fuel level sensor

P0500 Vehicle speed sensor

P0605 ECM

P0643 Sensor power supply

P0700 TCM

P0705 P0850 Park/neutral position (PNP) switch

P1610 - P1615 NATS

P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor

TROUBLE DIAGNOSIS
EC-89
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
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-582
DTC P1239, P2135 TP SENSOR
Revision: 2006 November2007 350Z
DTC P1239, P2135 TP SENSORPFP:16119
Component DescriptionNBS000H5
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
CONSULT-III Reference Value in Data Monitor ModeNBS000H6
Specification data are reference values.
*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
On Board Diagnosis LogicNBS000H7
This self-diagnosis has the one trip detection logic.
NOTE:
If DTC P1239 or P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-514, "
DTC P0643 SENSOR POWER SUPPLY" .
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up.
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
TP SEN 1-B1
TP SEN 2-B1*
1
TP SEN 1-B2
TP SEN 2-B2*1

Ignition switch: ON
(Engine stopped)

Shift lever: D (A/T) or 1st (M/T)
positionAccelerator pedal: Fully released More than 0.36V
Accelerator pedal: Fully depressed Less than 4.75V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2135
2135Throttle position sensor
circuit range/perfor-
manceRationally incorrect voltage is sent to ECM
compared with the signals from TP sensor 1
and TP sensor 2.

Harness or connector
(TP sensor 1 and 2 circuit is open or
shorted.)

Electric throttle control actuator
(TP sensor 1 and 2)
Engine operation condition in fail-safe mode
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.

DTC P1239, P2135 TP SENSOR
EC-583
C
D
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F
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MA
EC
Revision: 2006 November2007 350Z
DTC Confirmation ProcedureNBS000H8
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 more than 8V at idle.
WITH CONSULT-III
1. Start engine and let it idle for 1 second.
2. Check DTC.
3. If DTC is detected, go to EC-588, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III” above.

EC-584
DTC P1239, P2135 TP SENSOR
Revision: 2006 November2007 350Z
Wiring DiagramNBS000H9
BANK 1
TBWT1672E

DTC P1239, P2135 TP SENSOR
EC-585
C
D
E
F
G
H
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K
L
MA
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.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
30 YThrottle position sensor 1
(bank 1)[Ignition switch: ON]

Engine stopped

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

Accelerator pedal: Fully releasedMore than 0.36V
[Ignition switch: ON]

Engine stopped

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

Accelerator pedal: Fully depressedLess than 4.75V
34 LThrottle position sensor 2
(bank 1)[Ignition switch: ON]

Engine stopped

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

Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]

Engine stopped

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

Accelerator pedal: Fully depressedMore than 0.36V
40 RSensor ground
[Throttle position sensor
(bank 1)][Engine is running]

Warm-up condition

Idle speed0V
44 BSensor power supply
[Throttle position sensor
(bank 1)][Ignition switch: ON]5V