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:

    Diagnosis and repair work flow
    Work Flow INTRODUCTION The TCM receives signals from the vehicle speed sensor and transmission range switch. Then it provides shift control or lock-up control via CVT solenoid valves. The TCM also communicates with the ECM by means of signals sent from sensing elements used with the OBD-r ...

    Front tweeter
    Removal and Installation REMOVAL Remove the front pillar finisher. Refer to INT-24, "Removal and Installation". Remove the front tweeter speaker grille. Refer to IP-10, "Exploded View". Remove the front tweeter speaker screws (A). Pull out front tweeter speaker (1), disconnect the ...

    Diagnosis system (bluetooth control unit)
    Diagnosis Description The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically every ignition cycle during control unit initialization. The second diagnostic check is performed by the technician using the steering wheel audio control switches ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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