2007 NISSAN 350Z relay

INDEX FOR DTC
AT-5
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AT
Revision: 2006 November2007 350Z
INDEX FOR DTCPFP:00024
Alphabetical Index NCS00017
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT- 9 4
.

*1: These numbers are precribed by SAE J2012.

*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.Items
(CONSULT-III screen terms) DTC
Reference page OBD-II Except OBD-II
CONSULT-III
GST
*1
CONSULT-III
only “TRANSMIS-
SION”
A/T 1ST E/BRAKING — P1731AT- 1 4 3
A/T 1ST GR FNCTN P0731 P0731AT- 11 5
A/T 2ND GR FNCTN P0732 P0732AT- 11 7
A/T 3RD GR FNCTN P0733 P0733AT- 11 9
A/T 4TH GR FNCTN P0734 P0734AT- 1 2 1
A/T 5TH GR FNCTN P0735 P0735AT- 1 2 3
A/T INTERLOCK P1730 P1730AT- 1 4 1
A/T TCC S/V FNCTN
P0744*2P0744AT- 1 2 7
ATF TEMP SEN/CIRC P0710 P1710AT- 1 3 4
CAN COMM CIRCUIT U1000 U1000AT- 9 4
D/C SOLENOID/CIRC P1762 P1762AT- 1 4 9
ENGINE SPEED SIG P0725 P0725AT- 11 3
FR/B SOLENOID/CIRC P1757 P1757AT- 1 4 7
HLR/C SOL/CIRC P1767 P1767AT- 1 5 1
I/C SOLENOID/CIRC P1752 P1752AT- 1 4 5
L/PRESS SOL/CIRC P0745 P0745AT- 1 2 9
LC/B SOLENOID/CIRC P1772 P1772AT- 1 5 3
LC/B SOLENOID FNCT
P1774*2P1774AT- 1 5 5
MANU MODE SW/CIRC — P1815AT- 1 5 7
PNP SW/CIRC P0705 P0705AT- 1 0 2
STARTER RELAY/CIRC — P0615AT- 9 7
TCC SOLENOID/CIRC P0740 P0740AT- 1 2 5
TCM P0700 P0700AT- 1 0 1
TP SEN/CIRC A/T P1705 P1705AT- 1 3 1
TURBINE REV S/CIRC P0717 P0717AT- 1 0 6
VEH SPD SE/CIR-MTR — P1721AT- 1 3 9
VEH SPD SEN/CIR AT P0720 P0720AT- 1 0 8

AT-6
INDEX FOR DTC
Revision: 2006 November2007 350Z
DTC No. Index NCS00018
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT- 9 4
.

*1: These numbers are precribed by SAE J2012.

*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.DTC
Items
(CONSULT-III screen terms)Reference page OBD-II Except OBD-II
CONSULT-III
GST
*1
CONSULT-III
only “TRANSMIS-
SION”
— P0615 STARTER RELAY/CIRCAT- 9 7
P0700 P0700 TCMAT- 1 0 1
P0705 P0705 PNP SW/CIRCAT- 1 0 2
P0710 P1710 ATF TEMP SEN/CIRCAT- 1 3 4
P0717 P0717 TURBINE REV S/CIRCAT- 1 0 6
P0720 P0720 VEH SPD SEN/CIR ATAT- 1 0 8
P0725 P0725 ENGINE SPEED SIGAT- 11 3
P0731 P0731 A/T 1ST GR FNCTNAT- 11 5
P0732 P0732 A/T 2ND GR FNCTNAT- 11 7
P0733 P0733 A/T 3RD GR FNCTNAT- 11 9
P0734 P0734 A/T 4TH GR FNCTNAT- 1 2 1
P0735 P0735 A/T 5TH GR FNCTNAT- 1 2 3
P0740 P0740 TCC SOLENOID/CIRCAT- 1 2 5
P0744*2P0744 A/T TCC S/V FNCTNAT- 1 2 7
P0745 P0745 L/PRESS SOL/CIRCAT- 1 2 9
P1705 P1705 TP SEN/CIRC A/TAT- 1 3 1
— P1721 VEH SPD SE/CIR-MTRAT- 1 3 9
P1730 P1730 A/T INTERLOCKAT- 1 4 1
— P1731 A/T 1ST E/BRAKINGAT- 1 4 3
P1752 P1752 I/C SOLENOID/CIRCAT- 1 4 5
P1757 P1757 FR/B SOLENOID/CIRCAT- 1 4 7
P1762 P1762 D/C SOLENOID/CIRCAT- 1 4 9
P1767 P1767 HLR/C SOL/CIRCAT- 1 5 1
P1772 P1772 LC/B SOLENOID/CIRCAT- 1 5 3
P1774*2P1774 LC/B SOLENOID FNCTAT- 1 5 5
— P1815 MANU MODE SW/CIRCAT- 1 5 7
U1000 U1000 CAN COMM CIRCUITAT- 9 4

A/T CONTROL SYSTEM
AT-29
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Revision: 2006 November2007 350Z
TCM FunctionNCS0001M
The function of the TCM is to:

Receive input signals sent from various switches and sensors.

Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The A/T senses vehicle operating conditions through various sensors or signals. It always controls the opti-
mum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNALS)

TCM

ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Vehicle speed signal
Manual mode switch signal
Stop lamp switch signal
Turbine revolution sensor
ATF pressure switchShift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-III communication line
Duet-EA control
CAN systemInput clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch
solenoid valve
Low coast brake solenoid valve
Torque converter clutch sole-
noid valve
Line pressure solenoid valve
A/T CHECK indicator lamp
Starter relay
Back-up lamp relay
SCIA8327E

AT-30
A/T CONTROL SYSTEM
Revision: 2006 November2007 350Z
CAN CommunicationNCS0001N
SYSTEM DESCRIPTION
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. For details, refer to LAN-48,
"CAN System Specification Chart" .
Input/Output Signal of TCMNCS0001O

*1: Spare for vehicle speed sensor A/T (revolution sensor)

*2: Spare for accelerator pedal position signal

*3: If these input and output signals are different, the TCM triggers the fail-safe function.

*4: Used as a condition for starting self-diagnostics; if self-diagnostics are not started, it is judged that there is some kind of error.

*5: Input by CAN communications

*6: Output by CAN communicationsControl itemLine
pressure
controlVehicle
speed
controlShift
controlLock-up
controlEngine
brake
controlFail-safe
function
(*3)
Self-diag-
nostics
function
InputAccelerator pedal position signal
(*5)XXXXX X X
Vehicle speed sensor A/T
(revolution sensor)XXXXX X X
Vehicle speed sensor MTR
(*1)(*5)X
Closed throttle position signal
(*5)X(*2)XX X
X(*4)
Wide open throttle position signal(*5)X
X(*4)
Turbine revolution sensor 1 X X X X X
Turbine revolution sensor 2
(for 4th speed only)XXXXX
Engine speed signals
(*5)XXXXX X X
Stop lamp switch signal
(*5)XXX
X(*4)
A/T fluid temperature sensors 1, 2 X X X X X X
ASCDOperation signal
(*5)XXX
Overdrive cancel sig-
nal
(*5)X
OutputDirect clutch solenoid X X X X
Input clutch solenoid X X X X
High and low reverse clutch solenoid X X X X
Front brake solenoid X X X X
Low coast brake solenoid
(ATF pressure switch 2)XX X X X
Line pressure solenoid X X X X X X X
TCC solenoid X X X
Self-diagnostics table
(*6)X
Starter relayXX

AT-40
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
TROUBLE DIAGNOSISPFP:00004
DTC Inspection Priority ChartNCS0001Z
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT- 9 4
.
Fail-safeNCS00020
The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is a an error in
a main electronic control input/output signal circuit.
In fail-safe mode, even if the selector lever is “D” or “M” mode, the A/T is fixed in 2nd, 4th or 5th (depending on
the breakdown position), so the customer should feel “slipping” or “poor acceleration”.
Even when the electronic circuits are normal, under special conditions (for example, when slamming on the
brake with the wheels spinning drastically and stopping the tire rotation), the A/T can go into fail-safe mode. If
this happens, switch OFF the ignition switch for 10 seconds, then switch it ON again to return to the normal
shift pattern. Therefore, the customer's vehicle has returned to normal, so handle according to the AT- 4 3 ,
"WORK FLOW" .
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the A/T to mark driving possible.
Vehicle Speed Sensor A/T
Signals are input from two systems - from vehicle speed sensor A/T (revolution sensor) installed on the A/T
and from combination meter so normal driving is possible even if there is a malfunction in one of the systems.
And if vehicle speed sensor A/T (revolution sensor) has unusual cases, 5th gear and manual mode are prohib-
ited.
Accelerator Pedal Position Sensor
If there is a malfunction in one of the systems, the accelerator opening angle is controlled by ECM according
to a pre-determined accelerator angle to make driving possible. And if there are malfunctions in tow systems,
the engine speed is fixed by ECM to a pre-determined engine speed to make driving possible.
Throttle Position Sensor
If there is a malfunction in one of the systems, the accelerator opening angle is controlled by ECM according
to a pre-determined accelerator angle to make driving possible. And if there are malfunctions in tow systems,
the accelerator opening angle is controlled by the idle signal sent from the ECM which is based on input indi-
cating either idle condition or off-idle condition (pre-determined accelerator opening) in order to make driving
possible.
PNP Switch
In the unlikely event that a malfunction signal enters the TCM, the position indicator is switched OFF, the
starter relay is switched OFF (starter starting is disabled), the back-up lamp relay switched OFF (back-up lamp
is OFF) and the position is fixed to the “D” position to make driving possible.
Starter Relay
The starter relay is switched OFF. (Starter starting is disabled.)
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above

TROUBLE DIAGNOSIS
AT-83
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MA
B
AT
Revision: 2006 November2007 350Z
TCM Input/Output Signal Reference ValuesNCS0002D
A/T ASSEMBLY HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
Data are reference value and are measured between each terminal and ground.
SCIA1658E
TerminalWire
colorItem Condition Data (Approx.)
1GPower supply
(Memory back-up)Always Battery voltage
2GPower supply
(Memory back-up)Always Battery voltage
3 L CAN-H — —
4PU/WK-line (CONSULT-
III signal)The terminal is connected to the data link connector for CONSULT-III. —
5 B Ground Always 0 V
6 Y/R Power supply— Battery voltage
—0V
7YBack-up lamp
relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
8 P CAN-L — —
9GY/RStarter relaySelector lever in “N” and “P” positions. Battery voltage
Selector lever in other positions. 0 V
10 B Ground Always 0 V

TROUBLE DIAGNOSIS
AT-85
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Revision: 2006 November2007 350Z
I/C SOLENOIDInput clutch disengaged. Refer to AT- 1 9 . 0.6 – 0.8 A
Input clutch engaged. Refer to AT- 1 9
. 0 – 0.05 A
FR/B SOLENOIDFront brake engaged. Refer to AT- 1 9
. 0.6 – 0.8 A
Front brake disengaged. Refer to AT- 1 9
. 0 – 0.05 A
D/C SOLENOIDDirect clutch disengaged. Refer to AT- 1 9
. 0.6 – 0.8 A
Direct clutch engaged. Refer to AT- 1 9
. 0 – 0.05 A
HLR/C SOLHigh and low reverse clutch disengaged. Refer to AT- 1 9
. 0.6 – 0.8 A
High and low reverse clutch engaged. Refer to AT- 1 9
. 0 – 0.05 A
ON OFF SOLLow coast brake engaged. Refer to AT- 1 9
.ON
Low coast brake disengaged. Refer to AT- 1 9
.OFF
MANU MODE SWManual shift gate position (neutral) ON
Other than the above OFF
NON M-MODE SWManual shift gate position OFF
Other than the above ON
UP SW LEVERSelector lever: + side ON
Other than the above OFF
DOWN SW LEVERSelector lever: - side ON
Other than the above OFF
STARTER RELAYSelector lever in “N” and “P” positions. ON
Selector lever in other positions. OFF
ACCELE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
CLSD THL POSReleased accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POSFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
GEAR During driving 1, 2, 3, 4, 5 Item name Condition Display value (Approx.)

AT-86
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
SELF-DIAGNOSTIC RESULT MODE
After performing self-diagnosis, place check marks for results on the AT- 4 4 , "DIAGNOSTIC WORKSHEET" .
Reference pages are provided following the items.
Display Items List
X: Applicable, —: Not applicable
Items (CONSULT-III
screen terms)Malfunction is detected when...TCM self-
diagnosisOBD-II (DTC)
Reference
page “TRANS-
MISSION”
with CON-
SULT-IIIMIL
*1 ,
“ENGINE” with
CONSULT-III
or GST
CAN COMM CIRCUITWhen TCM is not transmitting or receiving CAN communica-
tion signal for 2 seconds or more.U1000 U1000AT- 9 4
STARTER RELAY/
CIRCIf this signal is ON other than in “P” or “N” position, this is
judged to be a malfunction.
(And if it is OFF in “P” or “N” position, this too is judged to be
a malfunction.)P0615 —AT- 9 7
TCM TCM is malfunctioning P0700 P0700AT- 1 0 1
PNP SW/CIRC

PNP switch 1–4 signals input with impossible pattern.

“P” position is detected from “N” position without any other
position being detected in between.P0705 P0705AT- 1 0 2
TURBINE REV S/CIRC

TCM does not receive the proper voltage signal from the
sensor.

TCM detects an irregularity only at position of 4th gear for
turbine revolution sensor 2.P0717 P0717AT- 1 0 6
VEH SPD SEN/CIR AT

Signal from vehicle speed sensor A/T (Revolution sensor)
not input due to cut line or the like.

Unexpected signal input during running.

After ignition switch is turned ON, unexpected signal input
from vehicle speed sensor MTR before the vehicle starts
moving.P0720 P0720AT- 1 0 8
ENGINE SPEED SIGTCM does not receive the CAN communication signal from
the ECM.P0725 P0725AT- 11 3
A/T 1ST GR FNCTN A/T cannot shift to 1st gear P0731 P0731AT- 11 5
A/T 2ND GR FNCTN A/T cannot shift to 2nd gear P0732 P0732AT- 11 7
A/T 3RD GR FNCTN A/T cannot shift to 3rd gear P0733 P0733AT- 11 9
A/T 4TH GR FNCTN A/T cannot shift to 4th gear P0734 P0734AT- 1 2 1
A/T 5TH GR FNCTN A/T cannot shift to 5th gear P0735 P0735AT- 1 2 3
TCC SOLENOID/CIRCNormal voltage not applied to solenoid due to cut line, short,
or the like.P0740 P0740AT- 1 2 5
A/T TCC S/V FNCTN

A/T cannot perform lock-up even if electrical circuit is
good.

TCM detects as irregular by comparing difference value
with slip rotation.P0744
P0744*2AT- 1 2 7
L/PRESS SOL/CIRC

Normal voltage not applied to solenoid due to cut line,
short, or the like.

TCM detects as irregular by comparing target value with
monitor value.P0745 P0745AT- 1 2 9
TP SEN/CIRC A/TTCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECM.P1705 P1705AT- 1 3 1
ATF TEMP SEN/CIRC During running, the A/T fluid temperature sensor signal volt-
age is excessively high or low.P1710 P0710AT- 1 3 4