DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-Nissan Murano vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a Nissan Murano 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-High line, CAN-Low line), allowing a high rate of information transmission with less wiring. Each control unit communicates data but selectively reads required data only.
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| U1000 |
CAN COMM CIRCUIT (CAN communication circuit) |
Diagnosis condition | When ignition switch ON. |
| Signal (terminal) | CAN communication signal | ||
| Threshold | CAN signal failure | ||
| Diagnosis delay time | 2 seconds or more | ||
POSSIBLE CAUSE
CAN communication error
FAIL-SAFE
Normal control
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always place the ignition switch in the OFF position and wait at least 10 seconds before conducting the next test.
>>
GO TO 2.
DTC REPRODUCTION PROCEDURE
CONSULT
Ignition switch OFF to ON.
Select "Self Diagnostic Result" mode of "EPS/DAST 3".
Is DTC “U1000” detected?
YES>>Go to DTC Diagnosis Procedure.
NO>>Inspection End.
Proceed to Trouble Diagnosis Flow Chart.
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