Nissan Sentra B18 (2020-2025) Service Manual: U1000 Can Comm Circuit
Dtc Description
DTC Description
DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-Nissan Sentra vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a Nissan Sentra vehicle, and each control unit shares information and links with other control units during operation (not independently). In CAN communication, control units are connected with 2 communication lines (CAN-High, CAN-Low) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.
DTC DETECTION LOGIC
|
DTC No. |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
|
|---|---|---|---|
|
U1000–01 |
CAN COMM CIRCUIT (CAN COMM CIRCUIT) |
Diagnosis condition |
When ignition switch is ON. |
|
Signal (terminal) |
— |
||
|
Threshold |
— |
||
|
Diagnosis delay time |
— |
||
POSSIBLE CAUSE
CAN communication system
FAIL-SAFE
Function of CAN communication signals received by AV control unit are inoperative
Dtc Confirmation Procedure
DTC Confirmation Procedure
-
PERFORM DTC CONFIRMATION PROCEDURE
-
CONSULT-
Ignition switch ON.
-
Ignition switch OFF and wait at least 30 seconds.
-
Ignition switch ON and wait at least 30 seconds or more.
-
Select “Self Diagnostic Result” mode of “MULTI AV”.
-
Check DTC.
-
Is DTC U1000–01 detected?
YES>>Refer to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
-
Diagnosis Procedure
Diagnosis Procedure
-
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
-
CONSULT-
Ignition switch ON.
-
Erase DTC.
-
Perform DTC confirmation procedure again. Refer to DTC Confirmation Procedure.
-
Is DTC detected again?
YES>>Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.
NO>>Inspection End.
-
Other materials:
P2135 Tp Sensor
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
condition
...
B2fa9-11 Shift Position
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen items
(Trouble diagnosis
content)
DTC detecting condition
...
Front Camera Unit
Values on the Diagnosis Tool
Values On The Diagnosis Tool
Note:
The following table includes information (items)
inapplicable to this Nissan Sentra vehicle. For information (items) applicable to this
vehicle, refer to CONSULT display items.
...