2005 NISSAN NAVARA relay

INDEX FOR DTC
AT-5
D
E
F
G
H
I
J
K
L
MA
B
AT
INDEX FOR DTCPFP:00024
Alphabetical IndexECS00FW4
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer toAT-91
.
Items
(CONSULT- II screen terms)DTC Reference page
A/T 1ST E/BRAKING P1731AT-130
ATF PRES SW 1/CIRC P1841AT-156
ATF PRES SW 3/CIRC P1843AT-158
ATF PRES SW 5/CIRC P1845AT-160
ATF PRES SW 6/CIRC P1846AT-162
A/T INTERLOCK P1730AT-127
A/T TCC S/V FNCTN P0744AT- 11 2
ATF TEMP SEN/CIRC P1710AT- 11 8
CAN COMM CIRCUIT U1000AT- 9 1
D/C SOLENOID/CIRC P1762AT-142
D/C SOLENOID FNCTN P1764AT-144
ENGINE SPEED SIG P0725AT-108
FR/B SOLENOID/CIRC P1757AT-137
FR/B SOLENOID FNCT P1759AT-139
HLR/C SOL/CIRC P1767AT-147
HLR/C SOL FNCTN P1769AT-149
I/C SOLENOID/CIRC P1752AT-132
I/C SOLENOID FNCTN P1754AT-134
L/PRESS SOL/CIRC P0745AT- 11 4
LC/B SOLENOID/CIRC P1772AT-152
LC/B SOLENOID FNCT P1774AT-154
PNP SW/CIRC P0705AT- 9 9
STARTER RELAY/CIRC P0615AT- 9 4
TCC SOLENOID/CIRC P0740AT- 11 0
TCMP0700AT- 9 8
TP SEN/CIRC A/T P1705AT- 11 6
TURBINE REV S/CIRC P1716AT-123
VEH SPD SE/CIR·MTR P1721AT-125
VEH SPD SEN/CIR AT P0720AT-103

AT-6
INDEX FOR DTC
DTC No. Index
ECS00FW5
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer toAT-91
.
DTCItems
(CONSULT- II screen terms)Reference page
P0615 STARTER RELAY/CIRCAT- 9 4
P0700 TCMAT- 9 8
P0705 PNP SW/CIRCAT- 9 9
P0720 VEH SPD SEN/CIR ATAT- 1 0 3
P0725 ENGINE SPEED SIGAT- 1 0 8
P0740 TCC SOLENOID/CIRCAT- 11 0
P0744 A/T TCC S/V FNCTNAT- 11 2
P0745 L/PRESS SOL/CIRCAT- 11 4
P1705 TP SEN/CIRC A/TAT- 11 6
P1710 ATF TEMP SEN/CIRCAT- 11 8
P1716 TURBINE REV S/CIRCAT- 1 2 3
P1721 VEH SPD SE/CIR·MTRAT- 1 2 5
P1730 A/T INTERLOCKAT- 1 2 7
P1731 A/T 1ST E/BRAKINGAT- 1 3 0
P1752 I/C SOLENOID/CIRCAT- 1 3 2
P1754 I/C SOLENOID FNCTNAT- 1 3 4
P1757 FR/B SOLENOID/CIRCAT- 1 3 7
P1759 FR/B SOLENOID FNCTAT- 1 3 9
P1762 D/C SOLENOID/CIRCAT- 1 4 2
P1764 D/C SOLENOID FNCTNAT- 1 4 4
P1767 HLR/C SOL/CIRCAT- 1 4 7
P1769 HLR/C SOL FNCTNAT- 1 4 9
P1772 LC/B SOLENOID/CIRCAT- 1 5 2
P1774 LC/B SOLENOID FNCTAT- 1 5 4
P1841 ATF PRES SW 1/CIRCAT- 1 5 6
P1843 ATF PRES SW 3/CIRCAT- 1 5 8
P1845 ATF PRES SW 5/CIRCAT- 1 6 0
P1846 ATF PRES SW 6/CIRCAT- 1 6 2
U1000 CAN COMM CIRCUITAT- 9 1

A/T CONTROL SYSTEM
AT-27
D
E
F
G
H
I
J
K
L
MA
B
AT
TCM FunctionECS00FWI
The function of the TCM is to:
lReceive input signals sent from various switches and sensors.
lDetermine required line pressure, shifting point, lock-up operation, and engine brake operation.
lSend 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
1st position switch signal
Overdrive control 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-II 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 solenoid valve
Line pressure solenoid valve
OD OFF indicator lamp
Starter relay
Back-up lamp relay
SCIA7332E

AT-28
A/T CONTROL SYSTEM
CAN Communication
ECS00FWJ
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 toLAN-30,
"CAN Communication Unit".
Input/Output Signal of TCMECS00FWK
*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-diagnosis; if self-diagnosis are not started, it is judged that there is some kind of error.
*5: Input by CAN communications.
*6: Output by CAN communications.Control itemLine
pressure
controlVehicle
speed
controlShift
controlLock-up
controlEngine
brake
controlFail-safe
function
(*3)Self-diag-
nostics
function
InputAccelerator pedal position signal
(*5)XXXXXX X
Vehicle speed sensor A/T
(revolution sensor)XXXXXX X
Vehicle speed sensor MTR
(*1) (*5)X
Closed throttle position signal
(*5)X(*2) X X X X(*4)
Wide open throttle position signal
(*5)XX(*4)
Turbine revolution sensor 1 X X X X X
Turbine revolution sensor 2
(for 4th speed only)XXXXX
Engine speed signals
(*5)XXXXXX 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 signal
(*5)X
OutputDirect clutch solenoid
(ATF pressure switch 5)XX X X
Input clutch solenoid
(ATF pressure switch 3)XX X X
High and low reverse clutch solenoid
(ATF pressure switch 6)XX X X
Front brake solenoid
(ATF pressure switch 1)XX X X
Low coast brake solenoid
(ATF pressure switch 2)XX XX X
Line pressure solenoid X X X X X X X
TCC solenoid X X X
Self-diagnosis table
(*6)X
Starter relayXX

AT-34
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
PFP:00004
DTC Inspection Priority ChartECS00FWV
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 toAT-91
.
Fail-safeECS00FWW
The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is an error in a
main electronic control input/output signal circuit. In fail-safe mode 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 transmission 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 toAT- 3 7 ,
"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
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 is prohibited.
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.
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

AT-76
TROUBLE DIAGNOSIS
TCM Input/Output Signal Reference Values
ECS00FX9
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.)
1SBPower supply
(Memory back-up)Always Battery voltage
2RPower supply
(Memory back-up)Always Battery voltage
3 L CAN-H – –
4GRK-line (CONSULT-
II signal)The terminal is connected to the data link connector for CONSULT-II. –
5 B Ground Always 0V
6 Y Power supply– Battery voltage
–0V
7LGBack-up lamp
relaySelector lever in “R” position. 0V
Selector lever in other positions. Battery voltage
8 P CAN-L – –
9BRStarterrelaySelector lever in “N” or “P” position. Battery voltage
Selector lever in other positions. 0V
10 B Ground Always 0V

AT-78
TROUBLE DIAGNOSIS
I/C SOLENOIDInput clutch disengaged. Refer toAT- 1 7.0.6-0.8A
Input clutch engaged. Refer toAT- 1 7
.0-0.05A
D/C SOLENOIDDirect clutch disengaged. Refer toAT- 1 7
.0.6-0.8A
Direct clutch engaged. Refer toAT- 1 7
.0-0.05A
HLR/C SOLHigh and low reverse clutch disengaged. Refer toAT- 1 7
.0.6-0.8A
High and low reverse clutch engaged. Refer toAT- 1 7
.0-0.05A
STARTER RELAYSelector lever in “N” or “P” position. ON
Selector lever in other positions. OFF
SLCT LVR POSISelector lever in “N” or “P” position. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
Selector lever in “3” position. 3
Selector lever in “2” position. 2
Selector lever in “1” position. 1
ON OFF SOLLow coast brake engaged. Refer toAT- 1 7
.ON
Low coast brake disengaged. Refer toAT- 1 7
.OFF
AT F P R E S S W 1Front brake engaged. Refer toAT- 1 7
.ON
Front brake disengaged. Refer toAT- 1 7
.OFF
AT F P R E S S W 2Low coast brake engaged. Refer toAT- 1 7
.ON
Low coast brake disengaged. Refer toAT- 1 7
.OFF
AT F P R E S S W 3Input clutch engaged. Refer toAT- 1 7
.ON
Input clutch disengaged. Refer toAT- 1 7
.OFF
AT F P R E S S W 5Direct clutch engaged. Refer toAT- 1 7
.ON
Direct clutch disengaged. Refer toAT- 1 7
.OFF
AT F P R E S S W 6High and low reverse clutch engaged. Refer toAT- 1 7
.ON
High and low reverse clutch disengaged. Refer toAT- 1 7
.OFF
1 POSITION SWSelector lever in “1” position. ON
Selector lever in other positions. OFF
OD CONT SWHolding overdrive control switch. ON
Releasing overdrive control switch. OFF
GEAR Duringdriving 1,2,3,4,5Item name Condition Display value (Approx.)

AT-80
TROUBLE DIAGNOSIS
SELF-DIAGNOSTIC RESULT MODE
Operation Procedure
After performing self-diagnosis, place check marks for results on theAT-38, "DIAGNOSTIC WORKSHEET".
Reference pages are provided following the items.
1. PerformAT- 7 9 , "
CONSULT-II SETTING PROCEDURE".
2. Touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable, —: Not applicable
BCIA0031E
Items (CONSULT-II
screen terms)Malfunction is detected when...TCM self-diagnosis
Reference page
DTC
CAN COMM CIRCUIT
lWhen a malfunction is detected in CAN communications U1000AT- 9 1
STARTER RELAY/
CIRC
lIf 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.)P0615AT- 9 4
TCMlTCM is malfunctioning. P0700AT- 9 8
PNP SW/CIRC
lPNP switch 1-4 signals input with impossible pattern
l“P” position is detected from “N” position without any other
position being detected in between.P0705AT- 9 9
VEH SPD SEN/CIR AT
lSignal from vehicle speed sensor A/T (Revolution sensor)
not input due to cut line or the like
lUnexpected signal input during running
lAfter ignition switch is turned ON, unexpected signal input
from vehicle speed sensor MTR before the vehicle starts
movingP0720AT- 1 0 3
ENGINE SPEED SIGlTCM does not receive the CAN communication signal from
the ECM.P0725AT- 1 0 8
TCC SOLENOID/CIRClNormal voltage not applied to solenoid due to cut line,
short, or the likeP0740AT- 11 0
A/T TCC S/V FNCTN
lA/T cannot perform lock-up even if electrical circuit is good.
lTCM detects as irregular by comparing difference value
with slip rotation.P0744AT- 11 2
L/PRESS SOL/CIRC
lNormal voltage not applied to solenoid due to cut line,
short, or the like
lTCM detects as irregular by comparing target value with
monitor value.P0745AT- 11 4
TP SEN/CIRC A/TlTCM does not receive the proper accelerator pedal posi-
tion signals (input by CAN communication) from ECM.P1705AT- 11 6
ATF TEMP SEN/CIRClDuring running, the ATF temperature sensor signal voltage
is excessively high or lowP1710AT- 11 8
TURBINE REV S/CIRC
lTCM does not receive the proper voltage signal from the
sensor.
lTCM detects an irregularity only at position of 4th gear for
turbine revolution sensor 2.P1716AT- 1 2 3