Infiniti QX56 (Z62). Manual - part 362
DAS
U1000 CAN COMM CIRCUIT
DAS-485
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
U1000 CAN COMM CIRCUIT
SIDE RADAR LH
SIDE RADAR LH : Description
INFOID:0000000006223905
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units, 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, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to
LAN-28, "CAN COMMUNICATION SYSTEM : CAN Communica-
ITS COMMUNICATION
• ITS communication is a multiplex communication system. This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
• ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
SIDE RADAR LH : DTC Logic
INFOID:0000000006223906
DTC DETECTION LOGIC
SIDE RADAR LH : Diagnosis Procedure
INFOID:0000000006223907
1.
PERFORM THE SELF-DIAGNOSIS
1.
Start the engine.
2.
Turn the BSW system ON, and then wait for 2 seconds or more.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
LEFT”.
Is “U1000” detected as the current malfunction?
YES
>> Refer to
LAN-18, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
SIDE RADAR RH
SIDE RADAR RH : Description
INFOID:0000000006223908
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units, 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, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to
LAN-28, "CAN COMMUNICATION SYSTEM : CAN Communica-
ITS COMMUNICATION
• ITS communication is a multiplex communication system. This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
• ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U1000
CAN COMM CIRCUIT
If Side radar LH is not transmitting or receiving ITS
communication signal for 2 seconds or more
ITS communication system