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Nissan Murano Z51. Manual - part 313
U1000, U1002 CAN COMM CIRCUIT
BRC-75
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
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U1000, U1002 CAN COMM CIRCUIT
Description
INFOID:0000000005517368
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
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DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
1.
Turn the ignition switch ON.
2.
Perform self-diagnosis for “ABS” with CONSULT-III.
Is DTC ”U1000“ or “U1002” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005517370
1.
PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform self-diagnosis for “ABS” with CONSULT-III.
Is the inspection result normal?
YES
>> Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
NO
>> INSPECTION END
Special Repair Requirement
INFOID:0000000005533017
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION AND CALIBRATION OF DECEL G
SENSOR
• After removing/replacing a steering angle sensor, be sure to perform the following procedure.
- Adjustment of steering angle sensor neutral position: Refer to
BRC-9, "ADJUSTMENT OF STEERING
ANGLE SENSOR NEUTRAL POSITION : Description"
.
• After removing/replacing an ABS actuator and electric unit (control unit), be sure to perform the following
procedure.
- Adjustment of steering angle sensor neutral position: Refer to
BRC-9, "ADJUSTMENT OF STEERING
ANGLE SENSOR NEUTRAL POSITION : Description"
.
- Calibration of decel G sensor: Refer to
BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"
.
>> END
DTC
Display item
Malfunction detected condition
Possible cause
U1000
CAN COMM CIRCUIT
When ABS actuator and electric unit (control unit) is not
transmitting or receiving CAN communication signal for 2
seconds or more.
• Harness or connector
• CAN communication line
• ABS actuator and electric unit
(control unit)
U1002
SYSTEM COOM
When ABS actuator and electric unit (control unit) is not
transmitting or receiving CAN communication signal of
steering angle sensor for 2 seconds or less.