wiring NISSAN 300ZX 1984 Z31 Automatic Transmission Workshop Manual

ASSEMBLY
290 (1 142)
29 5 (1 161)
30 0 (1 1811
30 5 (1 201)
31 0 (1 220)
Vacuum diaphragm rod selection
31932-XO103
31932-X0104
31932-XOlOO
31932-X0102
31932-XOlOl
Measured depth
“L” mm (in)
Under 25 55
(1 0059)
25 65
- 26 05
(1
0098 - 1 02561
2615-2655
(1 0295 - 1 04531
26 65.27 05
(1 0492
- 1 0650)
Over 27 15
(1 0689)
Rod length
mm (in) Part number
41 Install vacuum diaphragm.
Make sure that vacuum diaphragm rod does not
interfere with side plate
of control valve.
42 Install downshift solenoid, O.D. cancel sole-
noid, O.D. indicator switch and lock-up sole-
noid.
LO D csncei rolenoid SAT740
43. Install inhibitor switch Check for proper
operation in each range using
a circuit tester.
Refer to On Vehicle Service.
Y li
SAT082
44 Before installing oil pan, check parking pawl
engagement Make wiring connections to shift
switches and low temperature sensor
(E4N71B
automatic transmission models)
45. Install oil pan with new gasket.
-
AT-61

TROUBLE-SHOOTING AND DIAGNOSES
(Inspection-5)
Check if input wiring OK
L is normal Repair wires
(Inspection-6)
Repair or replace NG Are input signals
defective parts. normal? 4
OK
(Inspection-7)
Inspection of Shift Pattern Change Control (Cont'd)
(Inspection-8) 1
Check if downshift
Reinstall solenoid solenoid
is properly
correctly or replace installed and operates
normally
4
(When control unit is not replaced) OK
1 (When control unit is replaced)
4 Replace control unit
I 4
OK Check if speed change point
between
02 and D3 is nor-
mal in power shift operation
I N G.1
I. Repair wires.
AT-84

TROUBLE-SHOOTING AND DIAGNOSES
Inspection of Shift Pattern Change Control (Cont’d)
9
END OK Check if speed change point
between
D3 and D4 is normal
in power shift operation
(Inspection-9)
Check if input wiring is
normal
(Inspection-101
normal,
NG Repair wires
Repair or replace
defective pans
(Inspection.111 1
Check if output
wiring
is normal
(Inspection-12) 1
Check if 0 D solenoid
and functions normally Reinstall solenoid
correctly or replace
(When control unit is not replaced1
(When control unit is replaced)
Replace control unit
I-I-”7
Repair defects in A/T
P
AT-85

TROUBLE-SHOOTING AND DIAGNOSES
Inspection of Shift Pattern Change Control (Cont'd)
INSPECTION POINTS
Inspection
No
1
2
Item to be checked
Power shift indicator lamp
signals
Power shift indicator lamp
wirings
3
4 I input signals
Input wiring
5
6 I input signals
Input wiring
Output wiring 71
12
Downshift solenoid
Input wiring ~~
0 D cancel
solenoid
IO I Input signals
Output wiring l1 I
Checking method
0 Jack up rear wheels and accelerate in D range When vehicle
speed goes over 13 kmlh (8 MPHI, turn on power shift switch
Jack up rear wheels and quickly depress accelerator pedal while
in
D range To confirm if signals come out to turn on power
shift indicator lamp in the above condition, check power
shift indicator lamp for items given in chart
on page AT-75
0 Check connector between control unit and powershift
indicator lamp for proper connection and continuity
Check connectors between control unit and following sensors foi
proper connections and continuity Refer to circuit diagram on
page AT-74
Power shift switch
Throttle sensor
Vehicle speed sensor
:heck same items as inspection-3 given in chart on pages AT-75 and 76
Check connectors between control unit and following sensors for
proper wnnections and continuity Refer to circuit diagram on
page AT-74
Inhibitor switch Y2"rangeI
0 Shift switches (1-2.2-3, and 34)
:heck same items as inspection-5 given in chart on pages AT-75 and 76
Check connector between control unit and downshift solenoid for
proper connections and continuity
0 Apply 12V voltage to solenoid proper to see if it functions
normally
0 Check connector between control unit and 3-4 shift switch for
proper connections and continuity
Check item "34 shift switch" in chart on page AT-76
Check connector between control unit and 0 D cancel solenoid
for connections and continuity
Apply 12V voltage to solenoid proper to see if it functions
normally.
AT-86

TROUBLE-SHOOTING AND DIAGNOSES
Inspection of Parts Related to A. S. C. D.
I Running test Details on each step will be described later.
I
normally provided during
AS C D running
switch is turned on while running at D4 speed with AS C D set
0 D will not be released even if vehicle speed slows down to over
6 kmlh (4 MPHI while running at D4 speed with AS C D set
e Vehicle will not run at D4 speed
(Inspection-7)
Output signal
wiring normal?
(Inspection-3) (Inspection-2) (Inspection-1 I
0 D solenoid
signals normal,
wz) NGI 10 K lOK
controller signals normal?
Check if 0 D cancel sole-
noid
is properly installed
harness control unit correctly or replace.
Parts related to
AS C D controller
Check and repair
Repair defects in A/T
T
AT-87

TROUBLE-SHOOTING AND DIAGNOSES
Inspection of Parts Related to A. S. C. D. (Cont’d)
INSPECTION POINTS
Inspection No
1
2
3
4
5
6
7
8
Item to be checked
0 D cancel solenoid signals
A S C D cruise signals
AS C D wiring harness
AS C D controller
AS C D 0 D cut signals
AS C D wiring harness
Output signal wiring
0.D cancel solenoid
Checking method
Jack up rear wheels, set lever to D range, and accelerate up to
D4 speed by slightly opening throttle
Then, when vehicle
speed
is 30 to 80 kmlh (19 to 50 MPH), completely close
accelerator and apply brakes over
0 7 second To check if
signals to turn on 0 D cancel solenoid come out at this time,
check item
“0 D cancel solenoid” in chart on page AT-75
1 Connect tester to connector terminals, Nos 13 and 22,
of lock-up control unit
2 Measure by repeatedly releasing vehicle speed setting
during A S C D driving
Proper indication
ASCD isset 12V
AS C
D is released OV
Refer to section EL for A S C D
Refer to section EL for AS C D
1 Connect tester to connector terminals, Nos 15 and 22,
of lock-up control
unit
2 Measure by repeatedly releasing vehicle speed setting
during AS C
D driving in D4 speed
Proper indication
Accelerator pedal is depressed OV
Accelerator pedal
is released 5V
Refer to section ELfor A S C D
Check connector between control unit and 0 D cancel
solenoid for connections and continuity
Apply 12V voltage to solenoid proper to see if it operates
normally
AT-88

TROUBLE-SHOOTING AND DIAGNOSES
Inspection of Kickdown Control
I Running test I
signals normal? signals normal? wiring normal?
Replace contrul
(I nspection-3)
good condition?
Repair harness
switch
I
Repair wires
(Inspection-5)
Check if downshift
solenoid functions
properly
Replace
in A/T I I
INSPECTION PO I NTS ~~
~
Inspection No Item to be checked Checking method
Listen for a “click“to be emitted by downshift solenoid
when accelerator pedal
is fully depressed and ignition switch
is “ON“
Downshift solenoid signals
I 1 Connect tester to connector terminals, Nus 21 and 22, of lock-
up control unit Measure while operating accelerator pedal
I Full-open accelerator OV 2 I Kickdown switch signals
Less than full open 5V
Check connector between kickdown switch and control unit
for moper connection and continuitv 3 1 Wires for kickdown switch
4 I Input signal wiring Check connector between downshift solenoid and control
unit for proper connection and continuity
Apply 12V voltage to solenoid proper to see if it functions
normally Downshift solenoid 5
AT-89