2001 NISSAN X-TRAIL Service Repair Manual

Page 2105 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual OVERALL SYSTEM
AT-27
D
E
F
G
H
I
J
K
L
MA
B
AT
“R” Position
●Reverse clutch
●Low and reverse brakeFront planetary carrier is stationary because of the operation of low and reverse brake.
Input

Page 2106 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual AT-28
OVERALL SYSTEM
Control System
ECS004QE
OUTLINE
The automatic transaxle senses vehicle operating conditions through various switches and sensors. It always
controls the optimum shift position and

Page 2107 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual OVERALL SYSTEM
AT-29
D
E
F
G
H
I
J
K
L
MA
B
AT
TCM FUNCTION
The function of the TCM is to:
●Receive input signals sent from various switches and sensors.
●Determine required line pressure, shiftin

Page 2108 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual AT-30
OVERALL SYSTEM
Back-up Control (Engine Brake)
If the selector lever is shifted to “2” position while driving in D4  (OD)
or D
3 , great driving force is applied to the clutch inside the tran

Page 2109 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual OVERALL SYSTEM
AT-31
D
E
F
G
H
I
J
K
L
MA
B
AT
Control of Shift Solenoid Valves A and B
The  TCM  activates  shift  solenoid  valves  A  and  B  according  to  sig-
nals from the throttle position sen

Page 2110 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual AT-32
OVERALL SYSTEM
Torque Converter Clutch Solenoid Valve Control
The torque converter clutch solenoid valve is controlled by the TCM.
The  plunger  closes  the  drain  circuit  during  the  “OFF

Page 2111 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual OVERALL SYSTEM
AT-33
D
E
F
G
H
I
J
K
L
MA
B
AT
Overrun Clutch Operating Conditions
Overrun Clutch Solenoid Valve Control
The overrun clutch solenoid valve is operated by an ON-OFF signal
transmitted

Page 2112 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual AT-34
OVERALL SYSTEM
Control Valve
ECS004QG
FUNCTION OF CONTROL VALVES
Valve name Function
Pressure regulator valve, plug 
and sleeveRegulates oil discharged from the oil pump to provide optimum line