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:
Front grille
Exploded View
Front bumper fascia
Front camera (if equipped)
Front grille
Front emblem
Pawl
Clip
Removal and Installation
REMOVAL
Remove front grille upper clip (A) (LH/RH).
Release clips and pawls, then remove front grille.
: Clip
: Pawl
Disco ...
System
METER SYSTEM
METER SYSTEM : System Description
SYSTEM DIAGRAM
Combination Meter Input Signal (CAN Communication Signal)
DESCRIPTION
Combination Meter
The combination meter controls the following items according to
the signals received from each unit via CAN
communicat ...
Brake warning lamp
Component Function Check
1.CHECK BRAKE WARNING LAMP FUNCTION
Check that brake warning lamp in combination meter turns ON for 1 second
after ignition switch is turned ON.
CAUTION:
Never start the engine.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Proceed to BRC-12 ...
