Nissan 240SX — Automatic Transmission (Section AT) (2000 year). Instruction — part 13
4
CHECK A/T MODE SWITCH CIRCUIT (With CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS”.
3. Read out “POWER SHIFT SW”. Make sure the selector lever switch position is indicated properly.
SAT417K
OK or NG
OK (With CONSULT-II)
©
GO TO 7.
OK (Without CONSULT-
II)
©
GO TO 8.
NG
©
GO TO 6.
5
CHECK A/T MODE SWITCH CIRCUIT (Without CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM harness connector M26 terminal Nos. 43 (GY), 44 (L/B) and ground when A/T mode
switch is “ON” and “OFF”.
SAT120KA
OK or NG
OK (With CONSULT-II)
©
GO TO 7.
OK (Without CONSULT-
II)
©
GO TO 8.
NG
©
GO TO 6.
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TROUBLE DIAGNOSES FOR SYMPTOMS
24. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control, A/T Check and TP Switches Circuit Checks) (Cont’d)
AT-193
6
DETECT MALFUNCTIONING ITEM
Check the following items:
I
A/T mode switch
a. Check continuity between two terminals.
SAT121KA
I
Harness for short or open between TCM and A/T mode switch (Main harness)
I
Harness of ground circuit for A/T mode switch (Main harness) for short or open
OK or NG
OK (With CONSULT-II)
©
GO TO 7.
OK (Without CONSULT-
II)
©
GO TO 8.
NG
©
Repair or replace damaged parts.
7
CHECK THROTTLE POSITION SWITCH CIRCUIT (With CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “CLOSED THL/SW” and “W/O THRL/P-SW” depressing and releasing accelerator pedal.
Check the signal of throttle position switch is indicated properly.
MTBL0011
SAT646J
OK or NG
OK
©
GO TO 9.
NG
©
Check the following items:
I
Throttle position switch
Refer to “Component Inspection”, AT-197.
I
Harness for short or open between ignition switch and throttle position switch (Main
harness)
I
Harness for short or open between throttle position switch and TCM (Main harness)
TROUBLE DIAGNOSES FOR SYMPTOMS
24. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control, A/T Check and TP Switches Circuit Checks) (Cont’d)
AT-194
8
CHECK THROTTLE POSITION SWITCH CIRCUIT (Without CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM harness connector M25 terminals No. 16 (LG), 17 (R) and ground while depressing, and
releasing accelerator pedal slowly. (after warming up engine)
MTBL0637
SAT526JC
OK or NG
OK
©
GO TO 9.
NG
©
Check the following items:
I
Throttle position switch
Refer to “Component Inspection”, AT-197.
I
Harness for short or open between ignition switch and throttle position switch (Main
harness)
I
Harness for short or open between throttle position switch and TCM (Main harness)
9
CHECK DTC
Perform Diagnostic procedure, AT-190.
OK or NG
OK
©
INSPECTION END
NG
©
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
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TROUBLE DIAGNOSES FOR SYMPTOMS
24. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control, A/T Check and TP Switches Circuit Checks) (Cont’d)
AT-195
SAT418K
COMPONENT INSPECTION
NMAT0204S04
Overdrive Control Switch
NMAT0204S0401
I
Check continuity.
Terminal
Connector
Switch posi-
tion
Terminal No. (Wire color)
Continuity
B8
OD “ON”
1 (L/B)
2 (B)
No
OD “OFF”
Yes
SAT517GB
SAT843BI
Park/Neutral Position Switch
NMAT0204S0402
1.
Check continuity.
Terminal
Connector
Select lever
position
Terminal No. (Wire color)
Continuity
E22
P, N
1 (B)
2 (BR)
Yes
E23
P
3 (B)
4 (L)
R
3 (B)
5 (G)
N
3 (B)
6 (W)
D
3 (B)
7 (Y)
2
3 (B)
8 (R)
1
3 (B)
9 (OR)
SAT807B
2.
If NG, check again with manual control linkage disconnected
from manual shaft of A/T assembly. Refer to step 1.
3.
If OK on step 2, adjust manual control linkage. Refer to AT-207.
SAT386HF
4.
If NG on step 2, remove PNP switch from A/T and check con-
tinuity of PNP switch terminals. Refer to step 1.
5.
If OK on step 4, adjust PNP switch. Refer to AT-206.
6.
If NG on step 4, replace PNP switch.
TROUBLE DIAGNOSES FOR SYMPTOMS
24. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control, A/T Check and TP Switches Circuit Checks) (Cont’d)
AT-196
SAT230JA
A/T Mode Switch
NMAT0204S0406
I
Check continuity.
Terminal
Connector
Switch position
Terminal No. (Wire color)
Continuity
M41
POWER
ON
2
3
Yes
OFF
No
SNOW
ON
1
2
Yes
OFF
No
SAT851JC
Throttle Position Switch
NMAT0204S0403
Closed Throttle Position Switch (Idle Position)
I
Check continuity.
Terminals
Connector
Accelerator
pedal condi-
tion
Terminal No. (Wire color)
Continuity
F34
Released
4 (LG)
5 (G/OR)
Yes
Depressed
No
I
To adjust closed throttle position switch, refer to EC-50, “Basic
Inspection”.
SAT852JC
Wide Open Throttle Position Switch
I
Check continuity.
Terminals
Connector
Accelerator
pedal condi-
tion
Terminal No. (Wire color)
Continuity
F34
Released
5 (G/OR)
6 (R)
No
Depressed
Yes
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TROUBLE DIAGNOSES FOR SYMPTOMS
24. TCM Self-diagnosis Does Not Activate (PNP, Overdrive Control, A/T Check and TP Switches Circuit Checks) (Cont’d)
AT-197
Description
NMAT0093
I
The mechanical key interlock mechanism also operates as a
shift lock:
With the key switch turned to “ON”, the selector lever cannot
be shifted from “P” (parking) to any other position unless the
brake pedal is depressed.
With the key removed, the selector lever cannot be shifted
from “P” to any other position.
The key cannot be removed unless the selector lever is placed
in “P”.
I
The shift lock and key interlock mechanisms are controlled by
the ON-OFF operation of the shift lock solenoid and by the
operation of the rotator and slider located inside the key
cylinder, respectively.
JAT419K
A/T SHIFT LOCK SYSTEM
Description
AT-198
Wiring Diagram — SHIFT —
NMAT0094
TAT268
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A/T SHIFT LOCK SYSTEM
Wiring Diagram — SHIFT —
AT-199
Diagnostic Procedure
NMAT0095
SYMPTOM 1:
I
Selector lever cannot be moved from “P” position with key
in “ON” position and brake pedal applied.
I
Selector lever can be moved from “P” position with key in
“ON” position and brake pedal released.
I
Selector lever can be moved from “P” position when key
is removed from key cylinder.
SYMPTOM 2:
Ignition key cannot be removed when selector lever is set to
“P” position. It can be removed when selector lever is set to
any position except “P”.
1
CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK
©
GO TO 2.
NG
©
Repair key interlock cable. Refer to “Key Interlock Cable”, AT-203.
2
CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK
©
GO TO 3.
NG
©
Check selector lever. Refer to “ON-VEHICLE SERVICE — PNP Switch and Manual Con-
trol Linkage Adjustment”, AT-206 and AT-207.
3
CHECK POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between shift lock brake switch harness connector M24 terminal No. 1 (G) and ground.
SAT420K
Does battery voltage exist?
Yes
©
GO TO 4.
No
©
Check the following items:
I
Harness for short or open between battery and shift lock brake switch harness termi-
nal 1
I
Fuse
I
Ignition switch (Refer to EL-7, “Schematic”.)
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
AT-200
4
CHECK INPUT SIGNAL (BRAKE SWITCH)
Turn ignition switch to “ON” position.
(Do not start engine.)
I
Check voltage between A/T device harness connector B8 terminal No. 5 (L/OR) and ground.
Voltage:
Brake pedal depressed:
0V
Brake pedal released:
Battery voltage
SAT421K
OK or NG
OK
©
GO TO 5.
NG
©
Check the following items:
I
Harness for short or open between A/T device harness connector B8 terminal No. 5
(L/OR) and shift lock brake switch harness connector M24 terminal No. 2 (L/OR)
I
Shift lock brake switch
(Refer to “Component Check”, AT-202.)
5
CHECK GROUND CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness connector B8 terminal No. 6 (B) and ground.
SAT422K
OK or NG
OK
©
GO TO 6.
NG
©
Repair harness or connector.
6
CHECK PARK POSITION SWITCH
(Refer to “Component Check”, AT-202.)
OK or NG
OK
©
GO TO 7.
NG
©
Replace park position switch.
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A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont’d)
AT-201
7
CHECK SHIFT LOCK SOLENOID
(Refer to “Component Check”, AT-202.)
OK or NG
OK
©
GO TO 8.
NG
©
Replace shift lock solenoid.
8
CHECK SHIFT LOCK OPERATION
1. Reconnect shift lock harness connector.
2. Turn ignition switch from “OFF” to “ON” position. (Do not start engine.)
3. Recheck shift lock operation.
OK or NG
OK
©
INSPECTION END
NG
©
1. Perform A/T device input/output signal inspection test.
2. If NG, recheck harness connector connection.
SAT423K
Component Check
NMAT0096
SHIFT LOCK SOLENOID
NMAT0096S01
I
Check operation by applying battery voltage between shift lock
solenoid harness connector B201 terminal No. 2 (B) and A/T
device harness connector B8 terminal No. 5 (L/OR).
SAT424K
PARK POSITION SWITCH
NMAT0096S02
I
Check continuity between park position switch harness con-
nector B201 terminal No. 2 (L) and A/T device harness con-
nector B8 terminal No. 6 (B).
Condition
Continuity
When selector lever is set in “P” position and selector
lever button is released
Yes
Except above
No
SAT425K
SHIFT LOCK BRAKE SWITCH
NMAT0096S03
I
Check continuity between shift lock brake switch harness con-
nector M24 terminal Nos. 1 (G) and 2 (L/OR).
Condition
Continuity
When brake pedal is depressed
No
When brake pedal is released
Yes
Check shift lock brake switch after adjusting brake pedal —
refer to BR-12, “Adjustment”.
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont’d)
AT-202
JAT426K
JAT427K
Removal
NMAT0098
CAUTION:
I
Install key interlock cable in such a way that it will not be
damaged by sharp bends, twists or interference with adja-
cent parts.
I
After installing key interlock cable to control device, make
sure that casing cap and bracket are firmly secured in
their positions. If casing cap can be removed with an
external load of less than 39.2 N (4.0 kg, 8.8 lb), replace
key interlock cable with new one.
Unlock slider from adjuster holder and remove rod from cable.
JAT428K
Installation
NMAT0099
1.
Set key interlock cable to steering lock assembly and install
lock plate.
2.
Set selector lever to P position.
3.
Insert interlock rod into adjuster holder.
4.
Install casing cap to bracket.
5.
Move slider in order to fix adjuster holder to interlock rod.
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KEY INTERLOCK CABLE
Removal
AT-203
Control Device
NMAT0261
JAT429K
SHIFT CONTROL SYSTEM
Control Device
AT-204
JAT430K
Control Valve Assembly and Accumulators
NMAT0100
REMOVAL
NMAT0100S01
1.
Drain ATF.
2.
Remove oil pan and gasket.
3.
Remove oil strainer.
SAT353B
4.
Remove control valve assembly by removing fixing bolts and
disconnecting harness connector.
Bolt length and location
Bolt symbol
mm (in)
A
33 (1.30)
B
45 (1.77)
5.
Remove solenoids and valves from valve body if necessary.
6.
Remove terminal cord assembly if necessary.
SAT074BA
7.
Remove accumulator A, B, C and D by applying compressed
air if necessary.
I
Hold each piston with rag.
8.
Reinstall any part removed.
I
Always use new sealing parts.
JAT432K
Revolution Sensor Replacement
NMAT0210
I
Remove revolution sensor from A/T.
I
Always use new sealing parts.
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ON-VEHICLE SERVICE
Control Valve Assembly and Accumulators
AT-205
JAT433K
Rear Oil Seal Replacement
NMAT0211
1.
Remove propeller shaft. Refer to PD-4, “Components”.
2.
Remove rear oil seal.
JAT434K
3.
Install rear oil seal.
I
Apply ATF before installing.
4.
Reinstall all removed parts.
I
Always use new sealing parts.
SAT078B
Parking Pawl Components Inspection
NMAT0213
1.
Remove propeller shaft from vehicle. Refer to PD-4, “Compo-
nents”.
2.
Support A/T assembly with a jack.
3.
Remove rear engine mounting member. Tighten rear engine
mounting member to the specified torque. Refer to EM-66,
“Removal”.
4.
Remove rear extension assembly.
5.
Replace parking components if necessary.
6.
Reinstall any part removed.
I
Always use new sealing parts.
SAT081B
Park/Neutral Position Switch Adjustment
NMAT0104
1.
Remove manual control linkage from manual shaft of A/T
assembly.
2.
Set manual shaft of A/T assembly in “N” position.
3.
Loosen PNP switch fixing bolts.
4.
Insert pin into adjustment holes in both PNP switch and
manual shaft of A/T assembly as near vertical as possible.
5.
Reinstall any part removed.
6.
Check continuity of PNP switch. Refer to “Components
Inspection”, AT-196.
ON-VEHICLE SERVICE
Rear Oil Seal Replacement
AT-206
Manual Control Linkage Adjustment
NMAT0105
Move the selector lever from the “P” position to “1” position. You
should be able to feel the detents in each position.
If the detents cannot be felt or the pointer indicating the position is
improperly aligned, the linkage needs adjustment.
1.
Place selector lever in “P” position.
2.
Loosen lock nuts.
SAT293AA
3.
Tighten lock nut X until it touches trunnion, pulling selector
lever toward “R” position side without pushing button.
4.
Back off lock nut X 1 turn and tighten lock nut Y to the speci-
fied torque.
Lock nut
: 11 - 15 N·m (1.1 - 1.5 kg-m, 8 - 11 ft-lb)
5.
Move selector lever from “P” position to “1” position. Make sure
that selector lever can move smoothly.
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ON-VEHICLE SERVICE
Manual Control Linkage Adjustment
AT-207
Removal
NMAT0214
JAT435K
1.
Remove battery negative terminal.
2.
Remove exhaust tube.
3.
Remove fluid charging pipe from A/T assembly.
4.
Remove fluid cooler pipe from A/T assembly.
5.
Plug up openings such as the fluid charging pipe hole, etc.
6.
Remove propeller shaft. Refer to PD-4, “Components”.
I
Insert plug into rear oil seal after removing rear propeller
shaft.
I
Be careful not to damage spline, sleeve yoke and rear oil
seal.
7.
Remove A/T control cable from A/T assembly.
8.
Disconnect PNP switch, solenoid and revolution sensor har-
ness connectors.
JAT436K
9.
Remove air breather hose.
10. Remove starter motor.
11. Remove dust cover from A/T assembly.
12. Remove bolts securing torque converter to drive plate.
I
Remove the bolts by turning crankshaft.
REMOVAL AND INSTALLATION
Removal
AT-208
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