Engine Control NISSAN ALMERA N16 2003 Electronic Repair Manual

AT-360
[ALL]
SHIFT SOLENOID VALVE A
Diagnostic Procedure
ECS007RY
1. CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 2 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer to AT- 4 0 6 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
Shift solenoid valve A
Refer to AT-360, "
Component Inspection" .
Harness of terminal cord assembly for short or open
2. CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 2 and TCM harness connector terminal 11.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK DTC
Perform AT-358, "
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE" .
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 connector.
Component InspectionECS007RZ
SHIFT SOLENOID VALVE A
●For removal, refer to AT-406, "Control Valve Assembly and Accumulators" . Resistance : 20 - 30Ω
SAT900JB
Continuity should exist.
SAT901JC

SHIFT SOLENOID VALVE B
AT-365
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
Diagnostic ProcedureECS007S2
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 1 and ground.
OK or NG
OK >> GO TO 2
NG >>1.Remove control valve assembly. Refer to AT- 4 0 6 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
Shift solenoid valve B
Refer to AT- 3 6 5 , "
Component Inspection" .
Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 12 and TCM harness connector terminal 1.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK DTC
Perform AT- 3 6 3 , "
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE" .
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 connector.
Component InspectionECS007S3
SHIFT SOLENOID VALVE B
●For removal, refer to AT-406, "Control Valve Assembly and Accumulators" . Resistance : 5 - 20Ω
SAT904JB
Continuity should exist.
SAT905JD

AT-368
[ALL]
OVERRUN CLUTCH SOLENOID VALVE
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.
With CONSULT-II
1. Start engine.
2. Select “SELF-DIAG RESULTS” mode for A/T with CONSULT-II.
3. Drive vehicle under the following conditions:
Selector lever in “D” position, overdrive control switch in “OFF”
position and vehicle speed higher than 10 km/h (6 MPH).
4. If DTC is detected, go to AT- 3 7 0 , "
Diagnostic Procedure" .
Without CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever in “D” position, overdrive control switch in “OFF”
position and vehicle speed higher than 10 km/h (6 MPH).
3. Perform self-diagnosis.
Refer to AT- 2 5 0 , "
Diagnostic Procedure Without CONSULT-II"
for EXC. F/EURO-OBD, AT- 5 1 , "TCM SELF-DIAGNOSTIC
PROCEDURE (NO TOOLS)" for EURO-OBD.
4. If DTC is detected, go to AT- 3 7 0 , "
Diagnostic Procedure" .
SAT014K
SAT020K
MCIB9030E

AT-370
[ALL]
OVERRUN CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS007S6
1. CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 3 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer to AT- 4 0 6 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
Overrun clutch solenoid valve
Refer to AT-371, "
Component Inspection" .
Harness of terminal cord assembly for short or open
2. CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 3 and TCM harness connector terminal 20.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK DTC
Perform AT-368, "
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE" .
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 connector. Resistance : 20 - 30Ω
SAT908JA
Continuity should exist.
SAT909JA

AT-372
[ALL]
TORQUE CONVERTER CLUTCH SOLENOID VALVE
TORQUE CONVERTER CLUTCH SOLENOID VALVE
PFP:31940
DescriptionECS007S8
The torque converter clutch solenoid valve is activated, with the gear
in “D
4 ”, by the TCM in response to signals sent from the vehicle
speed and throttle position sensors. Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is a
big jump in engine speed, there is no lock-up.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SCIA0718E
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up “OFF”
↓
Lock-up “ON”Approximately 4%
↓
Approximately 94%
Termi-
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
3GY/RTorque converter
clutch solenoid
valveWhen A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: T/C CLUTCH SOL/V
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
●Harness or connectors
(The solenoid circuit is open or shorted.)
●T/C clutch solenoid valve
: 7th judgement flicker

TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-375
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
Diagnostic ProcedureECS007SA
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 5 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove oil pan. Refer to AT- 4 0 6 , "
Control Valve
Assembly and Accumulators" .
2. Check the following items:
Torque converter clutch solenoid valve
Refer to AT- 3 7 5 , "
Component Inspection" .
Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 5 and TCM harness connector terminal 3.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK DTC
Perform AT- 3 7 3 , "
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE" .
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 connector.
Component InspectionECS007SB
TORQUE CONVERTER CLUTCH SOLENOID VALVE
●For removal, refer to AT-406, "Control Valve Assembly and Accumulators" . Resistance: 5 - 20Ω
SAT889JB
Continuity should exist.
SAT890JB

AT-380
[ALL]
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
Diagnostic Procedure
ECS007SE
1. CHECK TCM POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
3. Turn ignition switch to “OFF” position.
4. Check voltage between TCM terminal 28 and ground.
OK or NG
OK >> GO TO 2
NG >> Check the following items:
●Harness for short or open between ignition switch and
TCM
●Ignition switch and fuse
Refer to EL-11, “POERT SUPPLY ROUTING".
2. CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals 6 and 7 when A/T is cold.
4. Reinstall any part removed.
OK or NG
OK (With CONSULT-II)>>GO TO 3
OK (Without CONSULT-II)>>GO TO 4
NG >> 1. Remove oil pan, refer to AT- 4 0 6 , "
Control Valve
Assembly and Accumulators" .
2. Check the following items:
A/T fluid temperature sensor
Refer to AT-382, "
Component Inspection" .
Harness of terminal cord assembly for short or open Voltage: Battery voltage
Voltage: Battery voltage
SCIA0736E
Resistance: Cold[20°C(68°F)]
Approximately 2.5 kΩ
SAT912JB

LINE PRESSURE SOLENOID VALVE
AT-391
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
Diagnostic ProcedureECS007SL
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 4 and ground.
OK or NG
OK >> GO TO 2
NG >>1.Remove control valve assembly. Refer to AT- 4 0 6 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
–Line pressure solenoid valve
Refer to AT- 3 9 3 , "
Component Inspection" .
–Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check resistance between terminal 4 and TCM harness connector terminal 2.
OK or NG
OK >> GO TO 3
NG >> Check the following items:
●Dropping resistor
Refer to AT- 3 9 3 , "
Component Inspection" .
●Harness for short or open between TCM terminal 2
and terminal cord assembly Resistance: 2.5 - 5Ω
SAT895JA
Resistance: 10 - 15Ω
SAT896JB

CAN COMMUNICATION LINE
AT-395
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
CAN COMMUNICATION LINEPFP:31940
DescriptionECS007SN
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
*: This terminal is connected to the ECM.
On Board Diagnosis LogicECS007SO
**: A/T COMM LINE means CAN communication line.
Self-Diagnosis Code Confirmation ProcedureECS007SP
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Wait at least 6 seconds or start engine and wait for at least 6
seconds.
4. If DTC is detected, go to AT- 3 9 7 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch “ON”.
2. Wait at least 6 seconds or start engine and wait at least 6 sec-
onds.
3. Perform self-diagnosis.
Refer to AT-250, "
Diagnostic Procedure Without CONSULT-II" .
4. If DTC is detected, go to AT- 3 9 7 , "
Diagnostic Procedure" .
Termi-
nal No.Wire color Item ConditionJudgement
standard
(Approx.)
5 L CAN (H) — — —
6 R CAN (L) — — —
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: A/T COMM LINE**
The ECM-AT communication line is open
or shorted.
●Harness or connectors
(The solenoid circuit is open or shorted.)
●Line pressure solenoid valve
: 11th judgement flicker
SAT014K
SCIA0705E

AT-410
[ALL]
REMOVAL AND INSTALLATION
REMOVAL AND INSTALLATION
PFP:00000
RemovalECS007T4
CAUTION:
Before separating transaxle from engine, remove the crankshaft
position sensor (OBD) from transaxle. Be careful not to damage
sensor.
1. Remove battery and bracket.
2. Remove air duct between throttle body and air cleaner.
3. Disconnect A/T solenoid harness connector, PNP switch har-
ness connector and revolution sensor harness connector.
4. Remove crankshaft position sensor (OBD) from transaxle.
5. Drain ATF from transaxle.
6. Disconnect control cable from transaxle.
7. Disconnect fluid cooler hoses.
8. Remove drive shafts. Refer to AX-10, "FRONT DRIVE SHAFT".
9. Remove the intake manifold support bracket. Refer to EM-16,
"INTAKE MANIFOLD" .
10. Remove starter motor from transaxle.
11. Remove upper bolts fixing transaxle to engine.
12. Support transaxle with a jack.
13. Remove center member.
●Tighten center member fixing bolts to specified torque, Refer
to EM-67, "
ENGINE ASSEMBLY" .
14. Remove center member, engine insulator and engine mounting bracket.
●Tighten center member fixing bolts to specified torque, Refer to EM-67, "ENGINE ASSEMBLY" .
SAT501HA
Tighten bolts to specified torque.
: 41 - 52 N-m (4.2 - 5.3 kg-m, 30 - 38 ft-lb)
SAT304G
AAT469