Nissan Rogue Service Manual: U1000 CAN COMM CIRCUIT
Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit communicates data but selectively reads required data only.
DTC Logic
DTC DETECTION LOGIC
| DTC | Display item | Malfunction detected condition | Possible cause |
| U1000 | CAN COMM CIRCUIT | Low tire pressure warning control unit is not communicating CAN communication signal for 2 seconds or more. |
|
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION
With CONSULT
- Drive for several minutes at a speed of 40 km/h (25 MPH) or more.
- Stop the vehicle.
- Perform “self-diagnosis” for “AIR PRESSURE MONITOR”.
Is DTC “U1000” detected? YES >> Proceed to WT-41, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Proceed to LAN-30, "CAN COMMUNICATION SYSTEM : CAN System Specification Chart".
C1770, C1771, C1772, C1773 G sensor
DTC Description
DTC DETECTION LOGIC
DTC
Display Item
Malfunction Detected Condition
Possible Causes
C1770
G SENSOR FL
(G sensor front left)
Malfunction in the G sen ...
U1010 control unit (CAN)
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction Detected Condition
Possible cause
U1010
CONTROL UNIT (CAN)
BCM detected internal CAN communication circuit m ...
Other materials:
Fusible link inspection
How To Check
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is
questionable, use circuit tester or test lamp.
Fusible link
With stop/start system
Without stop/start system*
*: Not applicable
CAUTION:
If ...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
...
Fuse inspection
How To Check
If fuse is blown, be sure to eliminate cause of malfunction before
installing new fuse.
Use fuse of specified rating. Never use fuse of more than
specified
rating.
Do not partially install fuse; always insert it into fuse holder
properly.
Remove fus ...
