Nissan Murano: Dtc/circuit Diagnosis / U1000 Can Comm Circuit
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 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
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 detected?
YES>>Proceed to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
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.
U0079 Control Module Communication Bus G Off
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
U0079–00
Control module communication Bus G Off
(Control module communication Bus G Off)
[—]
Diagnosis condition
When ignition switch is ON...
U1300 Av Comm Circuit
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
U1300–01
AV communication circuit
(AV communication circuit)
Diagnosis condition
When ignition switch is ON...
Other information:
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LATCH (Lower Anchors and Tethers for CHildren) system
LATCH system lower anchor locations - bench seat
Your vehicle is equipped with special anchor points that are used with LATCH system compatible child restraints. This system may also be referred to as the ISOFIX or ISOFIX compatible system. With this system, you do not have to use a vehicle seat belt to secure the child restraint unless the combined weight of the child and child restraint exceeds 65 lbs. (29.5 kg). If the combined weight of the child and child restraint is greater than 65 lbs. (29.5 kg), use the vehicle’s seat belt (not the lower anchors) to install the child restraint. Be sure to follow the child restraint manufacturer’s instructions for installation.
