Nissan Maxima Service and Repair 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-24, "CAN Communication Signal Chart".
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.PERFORM SELF DIAGNOSTIC
-
Turn ignition switch ON and wait for 2 seconds or more.
-
Check "Self Diagnostic Result".
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-79, "Removal and
Installation". ...
Other materials:
Headlamp
Wiring Diagram
...
Door key cylinder switch
Description
The main power window and door lock/unlock switch detects condition of the
door key cylinder switch and
transmits to BCM as the LOCK or UNLOCK signal.
Component Function Check
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check KEY CYL UN-SW, KEY CYL UN-SW in "DATA MONITOR" mode ...
Preparation
Special Service Tool
The actual shapes of the tools may differ from those illustrated here.
Commercial Service Tool
Sealant and/or Lubricant
...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
0.0068