Nissan Murano: System / Diag on Can
System Description
SYSTEM DIAGRAM

| Name | Harness | Description |
| DDL1 |
Tx
Rx |
For communications with the diagnostic tool. (CAN-H and CAN-L are used for controlling) |
| DDL2 |
K-LINE |
For communications with the diagnostic tool. (CAN-H and CAN-L are used for controlling) |
| Diag on CAN |
CAN-H
CAN-L |
For communications with the diagnostic tool. (CAN-H and CAN-L are also used for control and diagnoses.) |
DESCRIPTION
“Diag on CAN” is a diagnosis method which uses the CAN communication line for the communication between the control unit and the diagnostic tool.
System 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...
Component Description
Component Description
Main line
CAN communication line between splices
Branch line
CAN communication line between splice and a control unit
Splice
A point connecting a branch line with a main line
Termination circuit
Circuit connected across the CAN communication system...
Other information:
Type A (if so equipped)
Lighting
Rotate the switch to the
position,
and the front parking, tail, and license
plate lights will come on.
Rotate the switch to the
position,
and the headlights will come on and all
the other lights remain on.
Type B (if so equipped)
CAUTION
Use the headlights with the engine running
to avoid discharging the vehicle
battery...
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
U1A04
VIN UNFINISHED
(VIN unfinished)
Diagnosis condition
When ignition switch is ON.
Signal (terminal)
—
Threshold
Nissan Murano Vehicle identification number is not written
Diagnosis delay time
1 second or more
POSSIBLE CAUSE
VIN number is not written
TCU
FAIL-SAFETelematics system does not function
DTC Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
Ignition switch ON...