Diagnosis procedure
1.Check harness continuity (open circuit)

Is the inspection result normal? Yes (present error)>>check can system type decision again.
Yes (past error)>>error was detected in the main line between the data link connector and the a/c auto amp.
No >> repair the main line between the data link connector and the a/c auto amp.
Main line between ipdm-e and dlc
circuit
Ecm branch line circuitService Notice and Precautions for EPS System
Check the following item when performing the trouble
diagnosis.
Check any possible causes by interviewing the symptom and
it′s condition from the customer if any malfunction,
such as EPS warning lamp is turned ON, occurs.
Check if air pressure and size of tires are proper, t ...
Using the system
The NISSAN Voice Recognition system allows
hands-free operation of the Bluetooth® Phone
System.
If the vehicle is in motion, some commands may
not be available so full attention may be given to
vehicle operation.
Initialization
When the ignition switch is placed in the ON
position, NISSAN ...
C1609 Vehicle speed signal
DTC Logic
Dtc detection logic
DTC
Display item
Malfunction detected condition
Possible cause
C1609
CAN VHCL SPEED
Malfunction is detected in vehicle speed signal that
is output from abs actuator and electric unit (control
unit) via can communication. ...