NISSAN TEANA 2008 Service Manual

EC-280
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P1700 CVT CONTROL SYSTEM
P1700 CVT CONTROL SYSTEM
DescriptionINFOID:0000000003856761
This DTC is displayed with other DTC regarding TCM. Perform the trouble diagnosis for corresponding DTC.
Refer to EC-389, "
DTCIndex". When this DTC is detected, the ASCD control is canceled.

P1715 INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
EC-281
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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P1715 INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
DescriptionINFOID:0000000003856762
ECM receives primary speed sensor signal from TCM through CAN communication line. ECM uses this signal
for engine control.
DTC LogicINFOID:0000000003856763
DTC DETECTION LOGIC
NOTE:
If DTC P1715 is displayed with DTC U1000, U1001 first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-135, "
DTC Logic".
If DTC P1715 is displayed with DTC P0335, first perform the trouble diagnosis for DTC P0335. Refer
to EC-218, "
DTC Logic".
If DTC P1715 is displayed with DTC P0340, P0345, first perform the trouble diagnosis for DTC P0340,
P0345. Refer to EC-222, "
DTC Logic".
If DTC P1715 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer
to EC-240, "
DTC Logic".
If DTC P1715 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer
to EC-242, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine.
2. Drive vehicle at a speed of more than 50 km/h (31 MPH) for at least 5 seconds.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-281, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003856764
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-121, "
DTC Index".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble shooting relevant to DTC indicated.
2.REPLACE TCM
Replace TCM. Refer to TM-153, "
Removal and Installation".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1715Input speed sensor
(Primary speed sensor)
(TCM output)Primary speed sensor signal is different
from the theoretical value calculated by
ECM from secondary sensor signal and
engine rpm signal. Harness or connectors
(The CAN communication line is open or short-
ed)
 Harness or connectors
(Primary speed sensor circuit is open or short-
ed)
TCM

EC-282
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P1715 INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
>> INSPECTION END

P1720 VSS
EC-283
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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P1720 VSS
DescriptionINFOID:0000000003856765
ECM receives two vehicle speed signals via the CAN communication line. One is sent from “ABS actuator and
electric unit (control unit)” via combination meter, and the other is from TCM (Transmission control module).
ECM uses these signals for engine control.
DTC LogicINFOID:0000000003856766
DTC DETECTION LOGIC
NOTE:
If DTC P1720 is displayed with DTC U1000, U1001 first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-135, "
DTC Logic".
If DTC P1720 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer
to EC-242, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine.
2. Drive vehicle at a speed of 20 km/h (12 MPH) or more for at least 5 seconds without depressing the brake
pedal.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-283, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003856767
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-121, "
DTC Index".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble shooting relevant to DTC indicated.
2.CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Refer to BRC-140, "
DTC No. Index".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Perform trouble shooting relevant to DTC indicated.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1720Vehicle speed sensor
(TCM output)The difference between two vehicle speed
signals is out of the specified range. Harness or connectors
(Secondary speed sensor circuit is open or
shorted.)
 Harness or connectors
(Wheel sensor circuit is open or shorted.)
TCM
 Secondary speed sensor
 ABS actuator and electric unit (control unit)
 Wheel sensor
 Combination meter

EC-284
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P1720 VSS
3.CHECK COMBINATION METER FUNCTION
Refer to MWI-67, "
DTC Index".
>> INSPECTION END

P1800 VIAS CONTROL SOLENOID VALVE 1
EC-285
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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P1800 VIAS CONTROL SOLENOID VALVE 1
DescriptionINFOID:0000000003856768
The VIAS control solenoid valve 1 cuts the intake manifold vacuum signal for power valve 1 control. It
responds to ON/OFF signals from the ECM. When the solenoid is OFF, the vacuum signal from the intake
manifold is cut. When the ECM sends an ON signal the coil pulls the plunger downward and sends the vac-
uum signal to the power valve actuator 1.
DTC LogicINFOID:0000000003856769
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm battery voltage is more than 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-285, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003856770
1.CHECK VIAS CONTROL SOLENOID VALVE 1 POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect VIAS control solenoid valve 1 harness connector.
3. Turn ignition switch ON.
4. Check the voltage between VIAS control solenoid valve 1 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
2.CHECK VIAS CONTROL SOLENOID VALVE 1 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between VIAS control solenoid valve 1 harness connector and ECM harness con-
nector.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1800VIAS control solenoid valve 1
circuitAn excessively low or high voltage signal
is sent to ECM through the VIAS control
solenoid valve 1. Harness or connectors
(The solenoid valve 1 circuit is open or
shorted.)
 VIAS control solenoid valve 1
VIAS control solenoid valve 1
Ground Voltage
Connector Terminal
F74 1 Ground Battery voltage

EC-286
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P1800 VIAS CONTROL SOLENOID VALVE 1
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK VIAS CONTROL SOLENOID VALVE 1
Refer to EC-286, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace VIAS control solenoid valve 1.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000003856771
1.CHECK VIAS CONTROL SOLENOID VALVE 1
With CONSULT-III
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect vacuum hoses connected to VIAS control solenoid valve 1.
4. Turn ignition switch ON.
5. Select “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT-III.
6. Check air passage continuity and operation delay time under the
following conditions.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect VIAS control solenoid valve 1 harness connector.
3. Disconnect vacuum hoses connected to VIAS volume control solenoid valve 1.
4. Check air passage continuity and operation delay time under the
following conditions.
Is the inspection result normal?
YES >> INSPECTION END
VIAS control solenoid valve 1 ECM
Continuity
Connector Terminal Connector Terminal
F74 2 F7 27 Existed
Condition
(VIAS S/V 1)Air passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
ON Existed Not existed
OFF Not existed Existed
JMBIA0180ZZ
ConditionAir passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
12 V direct current supply be-
tween terminals 1 and 2Existed Not existed
No supply Not existed Existed
PBIB2532E

P1800 VIAS CONTROL SOLENOID VALVE 1
EC-287
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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NO >> Replace VIAS control solenoid valve 1

EC-288
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P1801 VIAS CONTROL SOLENOID VALVE 2
P1801 VIAS CONTROL SOLENOID VALVE 2
DescriptionINFOID:0000000003856772
The VIAS control solenoid valve 2 cuts the intake manifold vacuum signal for power valve 2 control. It
responds to ON/OFF signals from the ECM. When the solenoid is OFF, the vacuum signal from the intake
manifold is cut. When the ECM sends an ON signal the coil pulls the plunger downward and sends the vac-
uum signal to the power valve actuator 2.
DTC LogicINFOID:0000000003856773
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm battery voltage is more than 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-288, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003856774
1.CHECK VIAS CONTROL SOLENOID VALVE 2 POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect VIAS control solenoid valve 2 harness connector.
3. Turn ignition switch ON.
4. Check the voltage between VIAS control solenoid valve 2 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
2.CHECK VIAS CONTROL SOLENOID VALVE 2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between VIAS control solenoid valve 2 harness connector and ECM harness con-
nector.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1801VIAS control solenoid valve 2
circuitAn excessively low or high voltage signal
is sent to ECM through the VIAS control
solenoid valve 2. Harness or connectors
(The solenoid valve 2 circuit is open or
shorted.)
 VIAS control solenoid valve 2
VIAS control solenoid valve 2
Ground Voltage
Connector Terminal
F75 1 Ground Battery voltage

P1801 VIAS CONTROL SOLENOID VALVE 2
EC-289
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK VIAS CONTROL SOLENOID VALVE 2
Refer to EC-289, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace VIAS control solenoid valve 2.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000003856775
1.CHECK VIAS CONTROL SOLENOID VALVE 2
With CONSULT-III
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect vacuum hoses connected to VIAS control solenoid valve 2.
4. Turn ignition switch ON.
5. Select “VIAS S/V-2” in “ACTIVE TEST” mode with CONSULT-III.
6. Check air passage continuity and operation delay time under the
following conditions.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect VIAS control solenoid valve 2 harness connector.
3. Disconnect vacuum hoses connected to VIAS volume control solenoid valve 2.
4. Check air passage continuity and operation delay time under the
following conditions.
Is the inspection result normal?
YES >> INSPECTION END
VIAS control solenoid valve 2 ECM
Continuity
Connector Terminal Connector Terminal
F75 2 F7 26 Existed
Condition
(VIAS S/V 2)Air passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
ON Existed Not existed
OFF Not existed Existed
JMBIA0180ZZ
ConditionAir passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
12 V direct current supply be-
tween terminals 1 and 2Existed Not existed
No supply Not existed Existed
PBIB2532E