Nissan Rogue Service Manual: U1000 CAN COMM circuit
Description
CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle multiplex communication system with high data communication speed and excellent error detection ability.
Many electronic control units are equipped into vehicles, and each control unit shares information and links with other control units during operation. With CAN communication, control units are connected with two communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits and receives data but selectively reads required data only. Refer to LAN-32, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart".
DTC Logic
DTC DETECTION LOGIC
|
CONSULT name |
DTC |
DTC detecting condition |
Repair order |
| CAN COMMUNICATION FAILURE | U1000 | When air bag diagnosis sensor unit is not transmitting or receiving CAN communication signals for 2 or more seconds. | Refer to SRC-95, "Diagnosis Procedure". |
DTC CONFIRMATION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
- Turn ignition switch ON and wait for 7 seconds or more.
- Using CONSULT, perform SELF-DIAGNOSIS RESULTS of AIR BAG.
- Check if any DTC is displayed in the self-diagnosis results.
Is DTC detected? YES >> Refer to SRC-95, "Diagnosis Procedure".
NO >> Refer to GI-41, "Intermittent Incident".
Diagnosis Procedure
1.CHECK CAN COMMUNICATION SYSTEM
Check CAN communication system. Refer to LAN-17, "Trouble Diagnosis Flow Chart".
>> Inspection End.
B142A ignition voltage
Description
DTC B142A IGNITION VOLTAGE
Ignition voltage is supplied to the air bag diagnosis sensor unit when the
ignition is in the ON position. The air
bag diagnosis sensor unit will monitor fo ...
U1010 control unit (CAN)
Description
Air bag diagnosis sensor performs self-tests on key ON. If CAN communication
failure within control unit is
detected, DTC is set.
DTC Logic
DTC DETECTION LOGIC
CONSULT na ...
Other materials:
In the vicinity of the steering wheel
Window safety
switch
Power windows
Exterior mirror adjustment button
Central locking system
Unlocking
Locking
Seating comfort features
Front passenger seat
functionality
Memory function
Massage function
Opening and closing the
tailgate
Steering column stalk, left
Turn ...
Diagnosis system (air bag)
Description
CAUTION:
Never use electrical test equipment on any circuit related to
the SRS unless instructed in this Service
Manual. SRS wiring harnesses can be identified by yellow and/or orange
harnesses or harness
connectors.
Never repair, splice or modify the SRS wir ...
DTC Dynamic Traction
Control
Principle
Dynamic Traction Control (DTC) is a version of
the Dynamic Stability Control (DSC) where drive
power is optimized.
The system ensures maximum drive power on
unusual road conditions, for instance unplowed
snow covered roads, or loose road surfaces, but
with somewhat limited driving stabili ...
