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 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 two 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-14, "How to Use CAN Communication Signal Chart".

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

Diagnosis Procedure

1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT

  1. Turn ignition switch ON and wait for 2 or more seconds.
  2. Using CONSULT, perform "SELF-DIAGNOSIS RESULTS" of HVAC
    DTC/circuit diagnosis
    ...

    U1010 control unit (CAN)
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    Other materials:

    Multifunction switch 
    Removal and Installation  REMOVAL Remove cluster lid D. Refer to IP-10, "Exploded View". Remove the four multifunction switch screws (A) and remove the multifunction switch (2) from cluster lid D (1). : Metal clip  INSTALLATION Installation is in the reverse order of r ...

    Vertical synchronizing (VP) signal circuit
    Description In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizontal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images displayed with AV control unit, such as the image quality adjusting men ...

    System operation
    The automatic drive positioner system will not work or will stop operating under the following conditions: When the vehicle speed is above 0 mph (0 km/h) or 4 mph (7km/h) for some limited functions such as linking a key fob to the meter when the power source is turned on from off or du ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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