2001 NISSAN ALMERA N16 Idle control valve

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Failure to change gear from ªD
2º
to ªD
3º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve B AT-146 AT-250
4. Control valve assembly AT-343¬
5. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
OFF vehicle6. High clutch AT-394¬
7. Brake band AT-419¬
Failure to change gear from ªD
3º
to ªD
4º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve A AT-140 AT-244
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
5. A/T fluid temperature sensor AT-163 AT-187
OFF vehicle 6. Brake band AT-419¬
Too high a gear change point from
ªD
1ºtoªD2º, from ªD2ºtoªD3º,
from ªD
3ºtoªD4º.
AT-306, AT-309 and AT-312ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
Gear change directly from ªD
1ºto
ªD
3º occurs.ON vehicle1. Fluid level AT-78¬
2. Accumulator servo release AT-343¬
OFF vehicle 3. Brake band AT-419¬
Engine stops when shifting lever
into ªRº, ªDº, ª2º and ª1º.ON vehicle1. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
2. Torque converter clutch solenoid valve AT-157 AT-231
3. Control valve assembly AT-343¬
OFF vehicle 4. Torque converter AT-354¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-106

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Transmission overheats.ON vehicle1. Fluid level AT-78¬
2. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
3. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
4. Line pressure test AT-82¬
5. Line pressure solenoid valve AT-174 AT-237
6. Control valve assembly AT-343¬
OFF vehicle7. Oil pump AT-371¬
8. Reverse clutch AT-390¬
9. High clutch AT-394¬
10. Brake band AT-419¬
11. Forward clutch AT-399¬
12. Overrun clutch AT-399¬
13. Low & reverse brake AT-406¬
14. Torque converter AT-354¬
ATF shoots out during operation.
White smoke emitted from exhaust
pipe during operation.ON vehicle 1. Fluid level AT-78¬
OFF vehicle2. Reverse clutch AT-390¬
3. High clutch AT-394¬
4. Brake band AT-419¬
5. Forward clutch AT-399¬
6. Overrun clutch AT-399¬
7. Low & reverse brake AT-406¬
Offensive smell at fluid charging
pipe.ON vehicle 1. Fluid level AT-78¬
OFF vehicle2. Torque converter AT-354¬
3. Oil pump AT-371¬
4. Reverse clutch AT-390¬
5. High clutch AT-394¬
6. Brake band AT-419¬
7. Forward clutch AT-399¬
8. Overrun clutch AT-399¬
9. Low & reverse brake AT-406¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-114

3 CHECK LINE PRESSURE
Check line pressure at idle with selector lever in ªDº position. Refer to ªLine Pressure Testº, AT-82.
SAT494G
OK or NG
OK©GO TO 4.
NG©1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot
valve and pilot filter)
+Line pressure solenoid valve
4 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.
TROUBLE DIAGNOSES FOR SYMPTOMS
5. Large Shock. ªNº®ªRº Position (Cont'd)
AT-296

3 CHECK LINE PRESSURE
Check line pressure at idle with selector lever in ªRº position. Refer to ªLine Pressure Testº, AT-82.
SAT494G
OK or NG
OK©GO TO 4.
NG©1. Remove control valve assembly. Refer to ªON-VEHICLE SERVICEº, AT-343.
2. Check the following items:
+Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot
valve and pilot filter)
+Line pressure solenoid valve (AT-174: Except for Euro-OBD/AT-237: Euro-OBD)
3. Disassemble A/T.
4. Check the following item:
+Oil pump assembly
4 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO TO 5.
NG©GO TO 6.
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.
TROUBLE DIAGNOSES FOR SYMPTOMS
6. Vehicle Does Not Creep Backward In ªRº Position (Cont'd)
AT-298

3 CHECK LINE PRESSURE
Check line pressure at idle with selector lever in ªDº position. Refer to ªLine Pressure Test º, AT-82.
SAT494G
OK or NG
OK©GO TO 4.
NG©1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot
valve and pilot filter)
+Line pressure solenoid valve (AT-174: Except for Euro-OBD/AT-237: Euro-OBD)
3. Disassemble A/T.
4. Check the following item:
+Oil pump assembly
4 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO TO 5.
NG©GO TO 6.
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.
TROUBLE DIAGNOSES FOR SYMPTOMS
7. Vehicle Does Not Creep Forward In ªDº, ª2º Or ª1º Position (Cont'd)
AT-301

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