Nissan Altima 2007-2012 Service Manual: U0140 Can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic 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
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 3 seconds.
2. Check DTC.
Is DTC detected? YES >> EC-678, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
Go to LAN-16, "Trouble Diagnosis Flow Chart".
U0101 Can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellen ...
U1001 Can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excelle ...
Other materials:
Sunroof system
System Diagram
SUNROOF
System Description
SUNROOF SYSTEM
INPUT/OUTPUT SIGNAL CHART
SUNROOF OPERATION
• Sunroof motor assembly operates with the power supply that is output from
BCM while ignition switch is ON
or retained power is operating.
• Tilt up/ down & slide open/ clos ...
P1715 input speed sensor (primary
speed sensor)
Description
ECM receives primary speed sensor signal from TCM through CAN communication
line. ECM uses this signal
for engine control.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC P1715 is displayed with DTC UXXXX, first perform the trouble diagnosis
for DTC U1000,XXXX.
• If DTC P ...
Diagnosis system (TCM)
CONSULT-III Function (TRANSMISSION)
CONSULT-III can display each diagnostic item using the diagnostic test modes
shown below.
FUNCTION
WORK SUPPORT MODE
Display Item List
Engine Brake Adjustment
CAUTION:
Mode of “+1”“0”“−1”“−2”“OFF” can be selected by ...