2001 NISSAN ALMERA N16 light

15. Engine Speed Does Not Return To Idle
(Light Braking D
4®D3)=NJAT0345SYMPTOM:
+Engine speed does not smoothly return to idle when A/T
shifts from D
4to D3.
+Vehicle does not decelerate by engine brake when turning
overdrive control switch OFF.
+Vehicle does not decelerate by engine brake when shifting
A/T from ªDº to ª2º position.
1 CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to overrun clutch solenoid valve circuit after cruise test?
SAT348H
YesorNO
Ye s©Check overrun clutch solenoid valve circuit. Refer to AT-152 (Except for Euro-OBD)/AT-
265 (Euro-OBD).
No©GO TO 2.
2 CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to EC-168, ªDTC P0120 THROTTLE POSITION SENSORº.
SAT004K
OK or NG
OK©GO TO 3.
NG©Repair or replace throttle position sensor. (AT-132: Except for Euro-OBD/AT-256: Euro-
OBD)
TROUBLE DIAGNOSES FOR SYMPTOMS
15. Engine Speed Does Not Return To Idle (Light Braking D4®D3)
AT-320

3 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO TO 4.
NG©GO TO 6.
4 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Overrun clutch control valve
+Overrun clutch reducing valve
+Overrun clutch solenoid valve (AT-152: Except for Euro-OBD/AT-265: Euro-OBD)
OK or NG
OK©GO TO 5.
NG©Repair or replace damaged parts.
5 CHECK SYMPTOM
Check again.
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.
6 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Overrun clutch control valve
+Overrun clutch reducing valve
+Overrun clutch solenoid valve (AT-152: Except for Euro-OBD/AT-265: Euro-OBD)
3. Disassemble A/T.
4. Check the following items:
+Overrun clutch assembly
+Oil pump assembly
OK or NG
OK©GO TO 5.
NG©Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
15. Engine Speed Does Not Return To Idle (Light Braking D4®D3) (Cont'd)
AT-321

20. Vehicle Does Not Decelerate By Engine
Brake
=NJAT0350SYMPTOM:
Vehicle does not decelerate by engine brake when shifting
from 2
2(12)to11.
1 CHECK SYMPTOM
Is 6. Vehicle Does Not Creep Backward In ªRº Position OK?
YesorNo
Ye s©Go to 15. Engine Speed Does Not Return To Idle (Light Braking D
4®D3), AT-320.
No©Go to 6. Vehicle Does Not Creep Backward In ªRº Position, AT-297.
SAT088JA
SAT360H
SAT004K
21. TCM Self-diagnosis Does Not Activate (PNP,
Overdrive Control and Throttle Position
Switches Circuit Checks)
NJAT0351SYMPTOM:
O/D OFF indicator lamp does not come on in TCM self-diag-
nostic procedure even if the lamp circuit is good.
DESCRIPTIONNJAT0351S01+PNP switch
The PNP switch assembly includes a transmission range
switch. The transmission range switch detects the selector
lever position and sends a signal to the TCM.
+Overdrive control switch
Detects the overdrive control switch position (ON or OFF) and
sends a signal to the TCM.
+Throttle position switch
Consists of a wide open throttle position switch and a closed
throttle position switch.
The wide open throttle position switch sends a signal to the
TCM when the throttle valve is open at least 1/2 of the full
throttle position. The closed throttle position switch sends a
signal to the TCM when the throttle valve is fully closed.
TROUBLE DIAGNOSES FOR SYMPTOMS
20. Vehicle Does Not Decelerate By Engine Brake
AT-326

SAT058K
*1: With gusset to A/T
*2: With gusset to cylinder block
SAT638A
5. Reinstall any part removed.
6. Adjust control cable. Refer to AT-344.
7. Check continuity of PNP switch. Refer to AT-326.
8. Refill transaxle with ATF and check fluid level.
9. Move selector lever through all positions to be sure that tran-
saxle operates correctly. With parking brake applied, idle
engine. Move selector lever through ªNº to ªDº, to ª2º, to ª1º and
ªRº positions. A slight shock should be felt through the hand
gripping the selector each time the transaxle is shifted.
10. Perform road test. Refer to AT-83.
REMOVAL AND INSTALLATION
Installation (Cont'd)
AT-348

SAT272E
38. Remove forward clutch assembly from transmission case.
AAT215A
39. Remove thrust washer from transmission case.
SAT059D
40. Remove output shaft assembly according to the following pro-
cedures.
a. Remove side cover bolts.
SAT434D
b. Remove side cover by lightly tapping it with a soft hammer.
+Be careful not to drop output shaft assembly. It might
come out when removing side cover.
SAT440D
c. Remove adjusting shim.
DISASSEMBLY
AT-364

SAT873J
g. Install check balls, oil cooler relief valve springs and T/C pres-
sure holding spring in their proper positions in lower body.
SAT077F
h. Install lower separating gasket, inner separating gasket and
lower separating plate in order shown in the illustration.
SAT078F
i. Install boltsEfrom bottom of lower body. Using boltEas
guides, install separating plate and gaskets as a set.
j. Install support plates on lower body.
AAT536
k. Install lower body on inter body using reamer boltsFas guides
and tighten reamer boltsFslightly.
SAT317G
2. Install O-rings to solenoid valves and terminal body.
+Apply ATF to O-rings.
REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-381

SAT321G
DISASSEMBLYNJAT01341. Remove valves at retainer plates.
+Do not use a magnetic ªhandº.
SAT135D
a. Use a screwdriver to remove retainer plates.
SAT136D
b. Remove retainer plates while holding spring, plugs or sleeves.
+Remove plugs slowly to prevent internal parts from jump-
ing out.
SAT137D
c. Place mating surface of valve body face down, and remove
internal parts.
+If a valve is hard to remove, place valve body face down
and lightly tap it with a soft hammer.
+Be careful not to drop or damage valves and sleeves.
SAT138D
INSPECTIONNJAT0135Valve SpringNJAT0135S01+Measure free length and outer diameter of each valve spring.
Also check for damage or deformation.
Inspection standard:
Refer to SDS, AT-450.
+Replace valve springs if deformed or fatigued.
Control ValvesNJAT0135S02+Check sliding surfaces of valves, sleeves and plugs.
REPAIR FOR COMPONENT PARTS
Control Valve Upper Body (Cont'd)
AT-385

NAT033
9. Remove converter housing from transmission case.
10. Remove final drive assembly from transmission case.
11. Remove differential side bearing outer race from transmission
case.
12. Reinstall differential side bearing outer race and shim(s)
selected from SDS table on transmission case.
13. Reinstall converter housing on transmission case and tighten
transmission case fixing bolts to the specified torque.
NAT062
14. Insert Tool into differential case and measure turning torque of
final drive assembly.
+Turn final drive assembly in both directions several times
to seat bearing rollers correctly.
Turning torque of final drive assembly (New bearing):
0.49 - 1.08 N´m (5.0 - 11.0 kg-cm, 4.3 - 9.5 in-lb)
+When old bearing is used again, turning torque will be
slightly less than the above.
+Make sure torque is close to the specified range.
SAT876J
REDUCTION PINION GEAR BEARING PRELOADNJAT0174S02+Be sure to remove final drive assembly before doing this pro-
cedure.
+Using caliper and straightedge, calculate a dimention ªTº
(adjuster shim thickness) in the left figure by the following for-
mula. And adjust the inspection standard for pre-load (rotating
slide torque) as shown below.
T=A±E
Inspection standard for preload:
0.1 - 0.69 N´m (1.1 - 7.0 kg-cm, 0.95 - 6.08 in-lb)
SAT332DA
1. Remove transmission case and final drive assembly from con-
verter housing.
2. Select proper thickness of reduction pinion gear bearing
adjusting shim using the following procedures.
a. Place reduction pinion gear on transmission case as shown.
SAT333DA
b. Place idler gear bearing on transmission case.
c. Measure dimensions ªBº, ªCº and ªDº and calculate dimension
ªAº.
A=Dþ(B+C)
ªAº: Distance between the surface of idler gear bear-
ing inner race and the adjusting shim mating surface
of reduction pinion gear.
ASSEMBLY
Adjustment (1) (Cont'd)
AT-430