Nissan Maxima Service and Repair Manual: P1720 VSS
Description
ECM receives two vehicle speed signals via the CAN communication line. One is sent from "ABS actuator and electric unit (control unit)" via the combination meter, and the other is from TCM (Transmission control module).
ECM uses these signals for engine control.
DTC Logic
DTC DETECTION LOGIC
NOTE:
- If DTC P1720 is displayed with DTC UXXXX first perform the trouble diagnosis for DTC UXXXX. Refer to EC-161, "DTC Logic".
- If DTC P1720 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to EC-393, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
2.PERFORM DTC CONFIRMATION PROCEDURE
- Start engine.
- Drive vehicle at a speed of 20 km/h (12 MPH) or more for at least 5 seconds without depressing the brake pedal.
- Check 1st trip DTC.
Diagnosis Procedure
1.CHECK DTC WITH TCM
Check DTC with TCM.
2.CHECK DTC WITH "ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)"
3.CHECK COMBINATION METER FUNCTION
P1715 input speed sensor
Description
ECM receives input speed sensor signal from TCM via the CAN communication
line. ECM uses this signal for
engine control.
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P1715 ...
P1800 vias control solenoid valve 1
Description
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
...
Other materials:
Parking, license plate and tail lamps
System Diagram
System Description
BCM (Body Control Module) controls parking, license plate and tail lamps
operation.
IPDM E/R (Intelligent Power Distribution Module Engine Room) operates
parking, license plate and tail lamps according to CAN communication
signals from BCM.
Comp ...
System maintenance
The sensor A is located behind the lower grille
of the front bumper.
To keep the system operating properly, be sure to
observe the following:
Always keep the sensor area of the front
bumper clean.
Do not strike or damage the areas around
the sensor.
Do not cover or attach sticke ...
Sunroof system
System Diagram
SUNROOF
System Description
DESCRIPTION
Sunroof motor assembly and sunshade motor assembly operate with
the power supplied from BCM while ignition switch is ON or retained power
is operating.
Sunroof motor assembly receives an operation signal from sunroof
switch, a ...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
0.0064