Nissan Maxima Service and Repair Manual: Compressor control function

Description

PRINCIPLE OF OPERATION

A/C compressor is not activated.

Functional circuit diagram

Nissan Maxima. PRINCIPLE OF OPERATION

CAN (1): A/C switch signal
: Blower fan motor switch signal
CAN (2): A/C compressor request signal
RX: A/C switch signal
: Fan ON signal
: Defroster signal

Functional initial inspection chart

Nissan Maxima. PRINCIPLE OF OPERATION

Fail-Safe

FAIL-SAFE FUNCTION

  • If a communication error exists between the A/C auto amp., the AV control unit and the A/C and AV switch assembly for 30 seconds or longer, air conditioner is controlled under the following conditions:

Compressor: ON
Air outlet: AUTO
Air inlet: FRE ( )
Blower fan speed: AUTO
Set temperature: Setting before communication error occurs

    System description
    ...

    Automatic air conditioner system
    System Diagram CONTROL SYSTEM The control system consists of input sensors, switches, the A/C auto amp. (microcomputer) and outputs. The relationship of these components is as shown in the figure ...

    Other materials:

    Ignition signal
    Description The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit. Component Function Check 1.INSPECTIO ...

    Key slot illumination
    Description Blinks when Intelligent Key insertion is required. Component Function Check 1. CHECK FUNCTION With CONSULT Check key slot illumination KEY SLOT ILLUMI in Active Test mode. Diagnosis Procedure 1. CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL Check voltage between key slot connector ...

    Canceling a remote start
    To cancel a remote start, perform one of the following: Aim the Intelligent Key at the vehicle and press until the parking lights turn off. Turn on the hazard warning flashers. Cycle the ignition switch ON and then OFF. The extended engine run time has expired. The first 10 minute ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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