Nissan Altima (L32) 2007-2012 Service Manual: U1000 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 malfunction 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
NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
1. Turn ignition switch ON.
2. Start engine and wait for at least 6 seconds.
3. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
Follow the procedure “With CONSULT-III”.
Is “U1000 CAN COMM CIRCUIT” detected? YES >> Go to TM-123, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
Diagnosis Procedure
1.CHECK CAN COMMUNICATION CIRCUIT
1. Turn ignition switch ON and start engine.
2. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
Is “U1000 CAN COMM CIRCUIT” indicated? YES >> Go to LAN section. Refer to LAN-25, "CAN System Specification Chart".
NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
P0615 start signal
Description • TCM controls starter relay in IPDM E/R. • TCM switches starter relay ON at “P” or “N” position and allows to crank engine. • Then it prohibits cranking other than ...Other materials:
Body sealing
Description
The following figure shows the areas which are sealed at the factory. Sealant
which has been applied to these
areas should be smooth and free from cuts or gaps. Care should be taken not to
apply an excess amount of
sealant and not to allow other unaffected parts to come into cont ...
Door switch
Description
Detects door open/close condition and transmits the signal to BCM.
Component Function Check
1. CHECK FRONT DOOR SWITCH INPUT SIGNAL
Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with
CONSULT-III. Refer to BCS-
34, "RETAINED PWR : CONSULT-III Funct ...
Settings
The setting mode allows you to change the
information displayed in the vehicle information
display. It also allows you to change
vehicle functions:
VDC
Driver Assistance
Clock
Meter Settings
Vehicle Settings
Maintenance
Alarm
Tire Pressures
Unit
Language
Factory Reset
VDC
The VDC Settin ...