2001 NISSAN ALMERA N16 ignition

Diagnostic ProcedureNJAT0266
1 CHECK PNP SWITCH CIRCUIT (With CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
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3. Read out ªP/Nº, ªRº, ªDº, ª2º and ª1º position switches moving selector lever to each position.
Check the signal of the selector lever position is indicated properly.
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OK or NG
OK©GO TO 3.
NG©Check the following items:
+PNP switch
Refer to ªComponent Inspectionº, AT-186.
+Harness for short or open between ignition switch and PNP switch (Main harness)
+Harness for short or open between PNP switch and TCM (Main harness)
+Ignition switch and fuse
Refer to EL-10, ªPOWER SUPPLY ROUTINGº.
+Diode (P, N positions)
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCHEURO-OBD
Diagnostic Procedure
AT-184

2 CHECK PNP SWITCH CIRCUIT (Without CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Check voltage between TCM terminals 26, 27, 34, 35, 36 and ground while moving selector lever through each posi-
tion.
Voltage:
B: Battery voltage
0: 0V
MTBL0136
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OK or NG
OK©GO TO 3.
NG©Check the following items:
+PNP switch
Refer to ªComponent Inspectionº, AT-186.
+Harness for short or open between ignition switch and PNP switch (Main harness)
+Harness for short or open between PNP switch and TCM (Main harness)
+Ignition switch and fuse
Refer to EL-10, ªPOWER SUPPLY ROUTINGº.
+Diode (P, N positions)
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCHEURO-OBD
Diagnostic Procedure (Cont'd)
AT-185

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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0268S04CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªENGINEº with CONSULT-II.
2) Start engine and maintain the following conditions for at least
10 minutes (Total). (It is not necessary to maintain continu-
ously.)
CMPS´RPM (REF): 450 rpm or more
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD ªONº)
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUITEURO-OBD
Description (Cont'd)
AT-188

3 CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (Without CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up A/T.
Voltage:
Cold [20ÉC (68ÉF)]®Hot [80ÉC (176ÉF)]:
Approximately 1.5V®0.5V
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3. Turn ignition switch to ªOFFº position.
4. Disconnect TCM harness connector.
5. Check continuity between terminal 42 and ground.
Continuity should exist.
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If OK, check harness for short to ground and short to power.
OK or NG
OK©GO TO 4.
NG©GO TO 5.
4 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-188.
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.
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUITEURO-OBD
Diagnostic Procedure (Cont'd)
AT-191

5 CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals 6 and 7 when A/T is cold.
Resistance:
Cold [20ÉC (68ÉF)]
Approximately 2.5 kW
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4. Reinstall any part removed.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©1. Remove oil pan.
2. Check the following items:
+A/T fluid temperature sensor
Refer to ªComponent Inspectionº, AT-192.
+Harness of terminal cord assembly for short or open
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Component InspectionNJAT0271A/T FLUID TEMPERATURE SENSORNJAT0271S01+For removal, refer to AT-343.
+Check resistance between two terminals while changing tem-
perature as shown at left.
Temperature ÉC (ÉF) Resistance
20 (68) Approximately 2.5 kW
80 (176) Approximately 0.3 kW
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUITEURO-OBD
Diagnostic Procedure (Cont'd)
AT-192

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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0272S03CAUTION:
+Always drive vehicle at a safe speed.
+Be careful not to rev engine into the red zone on the
tachometer.
NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªA/Tº with CONSULT-II.
2) Drive vehicle and check for an increase of ªVHCL/S SE´MTRº
value increase.
If the check result is NG, go to ªDIAGNOSTIC PROCEDUREº,
AT-279.
If the check result is OK, go to following step.
3) Select ªDATA MONITORº mode for ªENGINEº with CONSULT-
II.
4) Start engine and maintain the following conditions for at least
5 consecutive seconds.
VHCL SPEED SE: 30 km/h (19 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD ªONº)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
If the check result is NG, go to ªDIAGNOSTIC PROCEDUREº,
AT-196.
If the check result is OK, go to following step.
5) Maintain the following conditions for at least 5 consecutive
seconds.
CMPS´RPM (REF): 3,500 rpm or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD ªONº)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0720 VEHICLE SPEED SENSOR´A/T
(REVOLUTION SENSOR)
EURO-OBD
Description (Cont'd)
AT-194

DescriptionNJAT0276The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUENJAT0276S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
39 L/OREngine speed
signal
Refer to EC-133, ªECM INSPECTION
TABLEº.Ð
ON BOARD DIAGNOSIS LOGICNJAT0276S02
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper voltage
signal from ECM.+Harness or connectors
(The sensor circuit is open or shorted.)
: P0725
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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0276S03CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªENGINEº with CONSULT-II.
2) Start engine and maintain the following conditions for at least
10 consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD ªONº)
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0725 ENGINE SPEED SIGNALEURO-OBD
Description
AT-198

Diagnostic ProcedureNJAT0278
1 CHECK DTC WITH ECM
Perform diagnostic test mode II (self- diagnostic results) for engine control. Check ignition signal circuit condition.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Check ignition signal circuit for engine control. Refer to EC-451, ªIGNITION SIGNALº.
2 CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
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3. Read out the value of ªENGINE SPEEDº.
Check engine speed changes according to throttle position.
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OK or NG
OK©GO TO 4.
NG©Check the following items:
+Harness for short or open between TCM and ECM
+Resistor and ignition coil
Refer to EC-451, ªIGNITION SIGNALº.
DTC P0725 ENGINE SPEED SIGNALEURO-OBD
Diagnostic Procedure
AT-200