Nissan Sentra Service Manual: 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 name | DTC | DTC detecting condition | Repair order |
| CAN CONTROL UNIT FAILURE | U1010 | CAN communication error is detected in control unit. | Refer to SRC-44, "Diagnosis Procedure". |
DTC CONFIRMATION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
- Turn ignition switch ON.
- Using CONSULT, perform SELF DIAGNOSIS RESULTS of AIR BAG.
- Check if DTC is displayed in the self-diagnosis results.
Is DTC detected? YES >> Refer to SRC-44, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
Replace air bag diagnosis sensor unit. Refer to SR-28, "Removal and Installation".
>> Inspection End.
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 exc ...
B0001, B0002 Driver airbag module
Description
DTC B0001, B0002 DRIVER AIRBAG MODULE
The driver air bag module is dual stage and is wired to the air bag diagnosis
sensor unit through the spiral
cable. The air bag diagnosis sensor ...
Other materials:
Interior room lamp control circuit
Description
Controls each interior room lamp (ground side) by pwm signal.
Note:
Pwm signal control period is approximately 250 hz (in the gradual
brightening/dimming).
Component function check
Caution:
Before performing the diagnosis, check that the following are normal.
Interior room l ...
B1431, B1433 Seat belt pre-tensioner RH
Description
DTC B1431, B1433 SEAT BELT PRE-TENSIONER RH
The seat belt pre-tensioner RH is wired to the air bag diagnosis sensor unit.
The air bag diagnosis sensor unit
will monitor for opens and shorts in detected lines to the seat belt pre-tensioner
RH.
PART LOCATION
Refer to SRC-5, " ...
Fog light switch (if so equipped)
To turn the fog lights on, turn the headlight switch
to the position, then turn the
fog light
switch to the position.
If the headlight switch is in the AUTO position
and the fog light switch is moved to the ON
position, both the fog lights and the headlights
(including all other ...
