DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P1800 | VIAS S/V-1 (Variable intake air system control solenoid valve-1) | An excessively low or high voltage signal is sent to ECM through the intake manifold tuning valve. |
|
DTC CONFIRMATION PROCEDURE
1.CONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following 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
Is 1st trip DTC detected? YES >> Proceed to EC-408, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK INTAKE MANIFOLD TUNING VALVE MOTOR POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK INTAKE MANIFOLD TUNING VALVE MOTOR POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK INTAKE MANIFOLD TUNING VALVE MOTOR OUTPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK INTAKE MANIFOLD TUNING VALVE MOTOR
Check the intake manifold tuning valve motor. Refer to EC-409, "Component Inspection (Intake Manifold Tuning Valve)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace intake manifold assembly. Refer to EM-27, "Removal and Installation".
Component Inspection (Intake Manifold Tuning Valve)
1.CHECK INTAKE MANIFOLD TUNING VALVE MOTOR
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace intake manifold. Refer to EM-27, "Removal and Installation".
Voice commands
Voice commands can be used to operate the
Bluetooth® Hands-Free Phone System. Press
the button and say “Phone” to bring
up the
phone command menu. The available options
are:
Call
Phonebook
Recent Calls
Send Text
Read Text
Select Phone
“Call”
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Component parts
Meter system
METER SYSTEM : Component Parts Location
ABS actuator and electric unit (control
unit)
Combination meter
CVT shift selector (with CVT)
(O/D OFF switch)
Air bag diagnosis sensor unit
(view with center console assembly removed)
Parking brake switch
(view with ...
System features
NISSAN Voice Recognition can activate the following
systems:
Bluetooth™ Hands-Free Phone System
Navigation
Audio
Information
My Apps
For additional information on the navigation system,
see the separate Navigation System Owner’s
Manual.
How to say numbers
NISSAN Voice Rec ...