Condition of Error Detection
DTC (e.g. U1000 and U1001) of CAN communication is indicated on SELF-DIAG RESULTS on CONSULT if a CAN communication signal is not transmitted or received between units for 2 seconds or more.
CAN COMMUNICATION SYSTEM ERROR
CAUTION:
CAN communication system is normal if DTC of CAN communication is indicated on SELF-DIAG RESULTS of CONSULT under the above conditions. Erase the memory of the self-diagnosis of each unit.
Symptom When Error Occurs in CAN Communication System
In CAN communication system, multiple units mutually transmit and receive signals. Each unit cannot transmit and receive signals if any error occurs on CAN communication line. Under this condition, multiple control units related to the root cause malfunction or go into fail-safe mode.
ERROR EXAMPLE
NOTE:
Example: TCM branch line open circuit
Example: Data link connector branch line open circuit
NOTE:
Example: Main Line Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Open Circuit
Example: CAN-H, CAN-L Harness Short Circuit
CAN Diagnosis with CONSULT
CAN diagnosis on CONSULT extracts the root cause by receiving the following information.
Self-Diagnosis
If communication signals cannot be transmitted or received among units communicating via CAN communication line, CAN communication-related DTC is displayed on the CONSULT "Self Diagnostic Result" screen.
NOTE:
The following table shows examples of CAN communication-related DTC. For other DTC, refer to the applicable sections.
CAN Diagnostic Support Monitor
MONITOR ITEM (CONSULT)
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NOTE:
For some models, CAN communication diagnosis result is received from the vehicle monitor.
Example: Vehicle Display
How to Use CAN Communication Signal Chart
The CAN communication signal chart lists the signals needed for trouble diagnosis. It is useful for detecting the root cause by finding a signal related to the symptom, and by checking transmission and reception unit.
Lifting motor (front)
Description
The lifting motor (front) is installed to the seat frame.
The lifting motor (front) is activated with the driver seat
control unit.
The lifter (front) is moved upward/downward by changing the rotation
direction of lifting motor (front).
Component Function Check
1. CHECK ...
TPMS malfunction
If the TPMS is not functioning properly, the low
tire pressure warning light will flash for approximately
1 minute when the ignition switch is
placed in the ON position. The light will remain on
after 1 minute. Have the system checked. It is
recommended that you visit a NISSAN dealer for
this ...
P0845 transmission fluid pressure SEN/SW B
Description
The primary pressure sensor detects primary pressure of CVT and sends a
signal to the TCM.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn
ignition switch OFF.
Then wait at least 10 ...