Nissan Altima (L32) 2007-2012 Service Manual: U1000 can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control unit, 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.
CAN Communication Signal Chart, refer to LAN-25, "CAN Communication Signal Chart"
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.PERFORM SELF DIAGNOSTIC
Turn ignition switch ON and wait for 2 second or more.
2. Check “Self Diagnostic Result”.
Is “CAN COMM CIRCUIT” displayed? YES >> Refer to LAN-8, "CAN Communication Control Circuit".
NO >> Refer to GI-42, "Intermittent Incident".
U1010 control unit (can)
DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1. REPLACE BCM When DTC U1010 is detected, replace BCM. >> Replace BCM. Refer to BCS-96, "Removal and Installation". ...Other materials:
Power supply and ground circuit for front air control
Description
FRONT AIR CONTROL
The front air control has a built-in microcomputer which processes
information sent from temperature control dial and various switches
needed for air conditioner operation. The air mix door motor, mode
door motor, intake door motor, blower motor and compressor are ...
Camshaft valve clearance
Camshaft valve clearance
• Perform this inspection as follows after removal, installation, or
replacement of the camshaft or any valverelated
parts, or if there are any unusual engine conditions due to changes in valve
clearance over time
(starting, idling, and/or noise).
1. Warm up the ...
P0507 ISC System
Description
The ECM controls the engine idle speed to a specified level via the fine
adjustment of the air, which is let into
the intake manifold, by operating the electric throttle control actuator. The
operating of the throttle valve is varied
to allow for optimum control of the engine idli ...