Nissan Rogue Service Manual: U0101 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 transmits/receives data but selectively reads required data only.
DTC Description
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting cond |
| U0101 | LOST COMM (TCM) (Lost communication with TCM) | When ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM for 2 seconds or more. |
POSSIBLE CAUSE
CAN communication line between TCM and ECM
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition switch ON and wait at least 3 seconds.
- Check DTC.
Is DTC detected? YES >> Proceed to EC-169, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
Perform the trouble diagnosis for CAN communication system. Refer to LAN-17, "Trouble Diagnosis Flow Chart".
Power supply and ground circuit
Diagnosis Procedure
1.CHECK FUSE
Check that the following fuse is not fusing.
Is the fuse fusing?
YES >> Replace the fuse after repairing the applicable circuit.
NO >> GO TO 2.
2 ...
U1001 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 excellen ...
Other materials:
Fuel injector and fuel tube
Exploded View
Rocker cover
Cylinder head
Fuel tube
Clip
O-ring (green)
Fuel injector
O-ring (black)
Front
Removal and Installation
WARNING:
Put a "CAUTION: FLAMMABLE" sign in the workshop.
Be sure to work in a well ve ...
Preparation
Special Service Tools
The actual shape of the tools may differ from those illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
(J-44321)
Fuel pressure gauge
kit
Checks fuel pressure
KV10120000
Fuel tube adapter
...
Disassembly and assembly
FUEL LEVEL SENSOR UNIT
Exploded View
Fuel Level Sensor Unit
Fuel filter and pump assembly
Fuel level sensor unit
Float arm assembly
Fuel tank temperature sensor
Disassembly and Assembly
NOTE:
Fuel level sensor unit and fuel tank temperature sensor are replaced as and
assembl ...
