Nissan Terrano r20e. Manual — part 1
AUTOMATIC TRANSMISSION
CONTENTS
Special Service Tools . . . . . . . . . . . . ..3
Supplemental Restraint System (SRS)
. . . ...4
Precautions . . . . . . . . . . . . . . . . ..4
Service Notice or Precautions . . . . . . . . . .5
. . . . . . . . . . . . . . 6
A/T Electrical Parts Location . . . . . . . . . ...6
Wiring Diagram - A/T -. . . . . . . . . . . . .7
Cross-sectional View . . . . . . . . . . . . ...8
Hydraulic Control Circuits . . . . . . . . . . . 9
Shift Mechanism . . . . . . . . . . . . . . 10
Control System . . . . . . . . . . . . . . ..12
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
. . . . . . . . . . . . . . . ...14
Self-diagnosis . . . . . . . . . . . . . . . 14
Diagnosis by CONSULT-II . . . . . . . . . . .20
TROUBLE DIAGNOSIS - Introduction
. . . . . . 22
Introduction . . . . . . . . . . . . . . . . 22
Diagnostic Worksheet. . . . . . . . . . . . 23
Work Flow. . . . . . . . . . . . . . . . ..26
TROUBLE DIAGNOSIS - Basic Inspection
. . . . 27
A/T Fluid Check . . . . . . . . . . . . . . .27
Stall Test . . . . . . . . . . . . . . . . . 27
Line Pressure Test. . . . . . . . . . . . . .30
Road Test. . . . . . . . . . . . . . . . ...32
TROUBLE DIAGNOSIS - General Description
. . ...43
Symptom Chart. . . . . . . . . . . . . . ..43
TCM Terminals and Reference Value. . . . . . 46
TROUBLE DIAGNOSIS FOR VHCL SPEED
SEN
. . . . . . . . . . . . . . . . . . .49
Wiring Diagram - AT - VSSA/T . . . . . . . . ..49
Vehicle Speed Sensor
A/T (Revolution sensor) . . 50
TROUBLE DIAGNOSIS FOR VHCL SPEED
SEN
. . . . . . . . . . . . . . . . . ...52
Wiring Diagram - AT - VSSMTR. . . . . . . . 52
Vehicle Speed Sensor
MTR . . . . . . . . . ..54
TROUBLE DIAGNOSIS FOR THROTTLE POSI
SEN
. . . . . . . . . . . . . . . . . . . . 56
Wiring Diagram - AT - TPS. . . . . . . . . . 56
Throttle (Accelerator) Position Sensor . . . . . ..60
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V
A
. . . . . . . . . . . . . . . . . . . . . .62
Wiring Diagram - AT - SSV/A . . . . . . . . . 62
Shift Solenoid Valve A . . . . . . . . . . . ...63
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V
B
. . . . . . . . . . . . . . . . . . . . . .65
Wiring Diagram - AT - SSV/B . . . . . . . . . 65
Shift Solenoid Valve B . . . . . . . . . . . ...66
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH
S/V
. . . . . . . . . . . . . . . . . . . . ..68
Wiring Diagram - AT - OVRCSV. . . . . . . . 68
Overrun Clutch Solenoid Valve . . . . . . . . .69
TROUBLE DIAGNOSIS FOR T/C CLUTCH SOL/V
. .71
Wiring Diagram - AT - TCV. . . . . . . . . . 71
Torque Converter Clutch Solenoid Valve . . . . ..72
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP
SEN
. . . . . . . . . . . . . . . . . . . . 75
Wiring Diagram - AT - BA/FTS . . . . . . . . ..75
A/T Fluid Temperature Sensor and TCM Power
Source. . . . . . . . . . . . . . . . . . 76
TROUBLE DIAGNOSIS FOR ENGINE SPEED SIG
. 79
Wiring Diagram - AT - ENGSS . . . . . . . . ..79
Engine Speed Signal . . . . . . . . . . . . .80
TROUBLE DIAGNOSIS FOR LINE PRESSURE
S/V
. . . . . . . . . . . . . . . . . . . . ..82
Wiring Diagram - AT - LPSV. . . . . . . . . ..82
Line Pressure Solenoid Valve . . . . . . . . ...84
TROUBLE DIAGNOSIS FOR NON-DETECTABLE
ITEMS
. . . . . . . . . . . . . . . . . . . .87
Wiring Diagram - AT - PNP/SW. . . . . . . . .87
Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches . . . . ...88
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
. . 94
1. SPORT Indicator Lamp Does Not Come On . . 94
2. SPORT or SNOW Indicator Lamp Does Not
. . . . . . . . . . . . . . . . ...95
3. O/D OFF Indicator Lamp Does Not Come On. ..95
4. SPORT Indicator Lamp Does Not Come On . . 96
5. Engine Cannot Be Started In
. . . . . . . . . . . . . . . . . ..97
Position, Vehicle Moves Forward Or
Position, Vehicle Moves . . . . . . . .98
Position . . . . . . .99
9. Vehicle Does Not Creep Backward In
. . . . . . . . . . . . . . . . . 100
10. Vehicle Does Not Creep Forward In
. . . . . . . . . . . . . . .101
11. Vehicle Cannot Be Started From D
1
. . . . .102
1
2
4
2
2
3
. . . . . . . 104
3
4
. . . . . . . .105
15. A/T Does Not Perform Lock-up . . . . . . .106
16. A/T Does Not Hold Lock-up Condition . . . ..107
17. Lock-up Is Not Released. . . . . . . . ...107
18. Engine Speed Does Not Return To Idle (Light
4
3
. . . . . . . . . . . . . .108
19. Vehicle Does Not Start From D
1
. . . . . ...109
2
1
4
3
. . . ... 111
3
2
Position. . . . . . . . . . . 111
2
1
Position . . . . . . . . . . . 112
24. Vehicle Does Not Decelerate By Engine
Brake. . . . . . . . . . . . . . . . . . 112
. . . . . . . . . . . .. 113
Control Valve Assembly and Accumulators. . . . 113
Revolution Sensor Replacement . . . . . . . . 114
Rear Oil Seal Replacement. . . . . . . . . . 114
Parking Components Inspection. . . . . . . .. 114
Park/neutral Position Switch Adjustment. . . . . 114
Manual Control Linkage Adjustment. . . . . . 115
. . . . . . . . 116
Removal. . . . . . . . . . . . . . . . ... 116
Installation. . . . . . . . . . . . . . . . 117
. . . . . . . . . . . . ... 119
Oil Channel . . . . . . . . . . . . . . . ..121
Locations of Needle Bearings, Thrust Washers
and Snap Rings . . . . . . . . . . . . . ...122
. . . . . . . . . . . . . . . 123
Disassembly. . . . . . . . . . . . . . . .123
Oil Pump . . . . . . . . . . . . . . . . ..134
Control Valve Assembly. . . . . . . . . . ...138
Control Valve Upper Body . . . . . . . . . ...144
Control Valve Lower Body . . . . . . . . . ...149
Reverse Clutch . . . . . . . . . . . . . . 151
High Clutch . . . . . . . . . . . . . . . ..155
Forward and Overrun Clutches . . . . . . . ...157
Low & Reverse Brake. . . . . . . . . . . ..161
Forward Clutch Drum Assembly. . . . . . . ..165
Rear Internal Gear and Forward Clutch Hub . . ..168
Band Servo Piston Assembly . . . . . . . . ..171
Parking Pawl Components . . . . . . . . . ..175
. . . . . . . . . . . . . . . . ..177
Assembly (1). . . . . . . . . . . . . . . 177
Adjustment . . . . . . . . . . . . . . . ...185
Assembly (2). . . . . . . . . . . . . . . 188
. . . . . . . . ...195
A/T Fluid Cooler. . . . . . . . . . . . . ...195
SERVICE DATA AND SPECIFICATIONS (SDS)
. . 196
General Specifications. . . . . . . . . . . .196
Specifications and Adjustment. . . . . . . . .196
When you read wiring diagrams:
I
Read GI section, “HOW TO READ WIRING DIAGRAMS”.
I
See EL section, “POWER SUPPLY ROUTING” for power distribution circuit.
When you perform trouble diagnoses, read GI section, “HOW TO FOLLOW FLOW CHART IN
TROUBLE DIAGNOSES” and “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRI-
CAL INCIDENT”.
CONTENTS
(Cont’d)
AT-2
Special Service Tools
Tool number
Tool name
Description
ST2505S001
Oil pressure gauge set
q
1
ST25051001
Oil pressure gauge
q
2
ST25052000
Hose
q
3
ST25053000
Joint pipe
q
4
ST25054000
Adapter
q
5
ST25055000
Adapter
NT097
Measuring line pressure
ST07870000
Transmission case
stand
NT421
Disassembling and assembling
A/T
a: 182 mm (7.17 in)
b: 282 mm (11.10 in)
c: 230 mm (9.06 in)
d: 100 mm (3.94 in)
KV31102100
Torque converter one-
way clutch check tool
NT098
Checking one-way clutch in
torque converter
ST25850000
Sliding hammer
NT422
Removing oil pump assembly
a: 179 mm (7.05 in)
b: 70 mm (2.76 in)
c: 40 mm (1.57 in) dia.
d: M12 x 1.75P
ST33200000
Drift
NT091
Installing oil pump housing
oil seal
Installing rear oil seal
a: 60 mm (2.36 in) dia.
b: 44.5 mm (1.752 in) dia.
KV31102400
Clutch spring
compressor
NT423
Removing and installing clutch
return springs
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
PREPARATION AND PRECAUTIONS
AT-3
Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger in a frontal collision.
The SRS system composition which is available to NISSAN MODEL R20 is as follows (The composition var-
ies according to the destination.):
Driver air bag module (located in the center of the steering wheel), front passenger air bag module (located
on the instrument panel on passenger side), seat belt pre-tensioner, a diagnosis sensor unit, warning lamp,
wiring harness and spiral cable.
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
I
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed
by an authorized NISSAN dealer.
I
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
I
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation either just before
the harness connectors or for the complete harness are related to the SRS.
Precautions
I
Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to
prevent the internal parts from becoming contaminated by dirt or other foreign matter.
I
Disassembly should be done in a clean work area.
I
Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could inter-
fere with the operation of the transmission.
I
Place disassembled parts in order for easier and proper assembly.
I
All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
I
Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
I
It is very important to perform functional tests whenever they are indicated.
I
The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place removed parts in a parts rack in order to replace them in correct positions and sequences. Care will
also prevent springs and small parts from becoming scattered or lost.
I
Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
I
Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, and to hold bearings and washers in place during assembly. Do not use grease.
I
Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
I
After overhaul, refill the transmission with new ATF.
I
When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the MA section when changing A/T fluid.
PREPARATION AND PRECAUTIONS
AT-4
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