Nissan Maxima Service and Repair 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 error detection ability. Many electronic control units are equipped on 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, CAN-L) 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
Diagnosis Procedure
1.PERFORM SELF DIAGNOSTIC
- Turn ignition switch ON and wait for 2 seconds or more.
- Check "Self Diagnostic Result" of "AV Control Unit".
U1010 control unit (CAN)
Description
Initial diagnosis of AV control unit.
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.REPLACE AV CONTROL UNIT
hen DTC U1010 is detected, replace AV control unit ...
Other materials:
Diagnosis system (AV control unit)
Diagnosis Description
MULTIFUNCTION SWITCH AND PRESET SWITCH SELF-DIAGNOSIS FUNCTION
The ON/OFF operation (continuity) of each switch in the multifunction switch
and preset switch can be checked.
Self-Diagnosis Mode
Press the BACK switch and the
switch of the 8-direction switches with ...
CAN communication circuit
Diagnosis Procedure
1.CONNECTOR INSPECTION
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect all the unit connectors on CAN communication system.
Check terminals and connectors for damage, bend and loose
connection.
2.CHECK HARNESS CON ...
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" mod ...
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
0.0076