2005 NISSAN X-TRAIL diagram

OVERALL SYSTEM
AT-37
D
E
F
G
H
I
J
K
L
MA
B
AT

TORQUE CONVERTER CLUTCH SOLENOID VALVE CONTROL
Lock-up Control System Diagram
Lock-up Released

In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
torque converter clutch solenoid applying pressure is drained and the torque converter clutch piston
release pressure is generated.
In this way, the torque converter clutch piston is not coupled.
Lock-up Applied

In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the
torque converter clutch solenoid applying pressure is generated and the torque converter clutch piston
release pressure is drained.
In this way, the torque converter clutch piston is pressed and coupled.
SMOOTH LOCK-UP CONTROL
When shifting from the lock-up released state to the lock-up applied state, the current output to the torque con-
verter clutch solenoid is controlled with the TCM. In this way, when shifting to the lock-up applied state, the
torque converter clutch is temporarily set to the half-clutched state to reduce the shock.
Half-Clutched State

The current output from the TCM to the torque converter clutch solenoid is varied to steadily increase the
torque converter clutch solenoid pressure.
In this way, the lock-up applying pressure gradually rises and while the torque converter clutch piston is
put into half-clutched status, the torque converter clutch piston operating pressure is increased and the
coupling is completed smoothly.
Engine Brake Control (Overrun Clutch Control)ECS00CTF
Forward one-way clutch is used to reduce shifting shocks in downshifting operations. This clutch transmits
engine torque to the wheels. However, drive force from the wheels is not transmitted to the engine because
the one-way clutch rotates idle. This means the engine brake is not effective.
The overrun clutch operates when the engine brake is needed.
SCIA5623E

AT-98
[EURO-OBD]
DTC U1000 CAN COMMUNICATION LINE

Wiring Diagram — AT — CANECS008D2
TCWA0234E

AT-102
[EURO-OBD]
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH

Wiring Diagram — AT — PNP/SWECS004QX
TCWA0229E

AT-108
[EURO-OBD]
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

Wiring Diagram — AT — FTSECS004R1
TCWA0230E

AT-114
[EURO-OBD]
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

Wiring Diagram — AT — VSSA/TECS004R5
TCWA0231E

AT-116
[EURO-OBD]
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

2. CHECK REVOLUTION SENSOR
With CONSULT-II
1. Start engine.
2. Check power supply to revolution sensor by voltage between TCM connector terminals. Refer to AT- 3 9 5 ,
"Wiring Diagram — AT — MAIN" and AT- 11 4 , "Wiring Diagram — AT — VSSA/T" .
3. If OK check the pulse when vehicle cruises.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
Item Connector
No. Terminal No. (Wire color) Data (Approx.)
TCM F46, F47 10 (BR/W) - 42 (B)
Battery voltage
19 (BR/W) - 42 (B)
Name Condition
Revolution sensorWhen moving at 20 km/h (12 MPH), use the CONSULT-II
pulse frequency measuring function.
CAUTION:
Connect the diagnosis data link cable to the data link
connector.
Item Connector
No. Te r m i n a l
No. (Wire
color) Name Data
(Approx.)
TCM F47 29 (W/R) Revolution sensor 450 Hz
SCIA2344E

AT-118
[EURO-OBD]
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

6. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (POWER)
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminals and revolu-
tion sensor harness connector terminals. Refer to AT- 2 1 , "
Circuit
Diagram" and AT- 3 9 5 , "Wiring Diagram — AT — MAIN" .
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> Fuse or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminal and revolu-
tion sensor harness connector terminal.
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK DTC
Perform AT- 11 2 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
Item Connector No. Terminal No.
(Wire color) Continuity
TCM F46 10 (BR/W)
Ye s
Revolution sensor F15 1 (Y)
Item Connector No. Terminal No.
(Wire color) Continuity
TCM F46 19 (BR/W)
Ye s
Revolution sensor F15 1 (Y)
SCIA2617E
Item Connector No. Terminal No.
(Wire color) Continuity
TCM F47 42 (B)
Ye s
Revolution sensor F15 3 (B)
SCIA2618E

DTC P0725 ENGINE SPEED SIGNAL
AT-121
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT

Wiring Diagram — AT — ENGSSECS004R8
TCWA0232E