Nissan Maxima Service and Repair Manual: Can communication system
System Description
- CAN communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting control units with two communication lines (CAN-H and CAN-L).
- Control units on the CAN network transmit signals using the CAN communication control circuit. They receive only necessary signals from other control units to operate various functions.
- CAN communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
System Diagram
Each control unit passes an electric current to the termination circuits when transmitting CAN communication signal. The termination circuits produce an electrical potential difference between CAN-H and CAN-L. CAN communication system transmits and receives CAN communication signals by the potential difference.
*: These are the only control units wired with both ends of CAN communication system.
Diag on can
Description
"Diag on CAN" is a diagnosis using CAN communication instead of previous DDL1
and DDL2 communication
lines, between control units and diagnosis unit.
System Diagram
...
Other materials:
U1300 AV comm circuit
Description
U1300 is indicated when a communication signal malfunction occurs. U1300 is
indicated along with DTCs that
identify components connected to the AV control unit through communication
lines. Determine the possible
malfunction cause from the table below.
SELF-DIAGNOSIS RESULTS DIS ...
P2138 APP sensor
Description
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelerator
position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which t ...
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 ...
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
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