2014 NISSAN TEANA ignition

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NISSAN TEANA 2014 Service Manual
DAS
U1000 CAN COMM CIRCUITDAS-117
< DTC/CIRCUIT DIAGNOSIS > [LDW]
C
D E
F
G H
I
J
K L
M B
N P
A
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009464757
CAN COMMUNICATION
CAN (Controller Area Netw

DAS
U1000 CAN COMM CIRCUITDAS-117
< DTC/CIRCUIT DIAGNOSIS > [LDW]
C
D E
F
G H
I
J
K L
M B
N P
A
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009464757
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 communicati on 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-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
ITS COMMUNICATION
• ITS communication is a multiplex communication syste m. This enables the system to transmit and receive
large quantities of data at high speed by connec ting control units with 2 communication lines.
• ITS communication lines adopt twisted-pair line st yle (two lines twisted) for noise immunity.
DTC LogicINFOID:0000000009464758
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first di agnose the CAN communication system.
Diagnosis ProcedureINFOID:0000000009464759
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the MAIN switch of ITS system ON, and then wait for 30 seconds or more.
3. Perform “All DTC Reading” with CONSULT.
4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “AVM”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to DAS-117, "Description".
NO >> Refer to GI-43, "Intermittent Incident"
.
DTC Trouble diagnosis name DTC detecting condition Possible causes
U1000 CAN COMM CIRCUIT If ITS control unit is not transmitting or receiving
CAN communication signal or ITS communica-
tion signal for 2 seconds or more • CAN communication system
• ITS communication system
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM