Nissan Maxima Service and Repair Manual: A/C switch assembly signal circuit

Nissan Maxima Service and Repair Manual / Ventilation, heater & air conditioner / Heater & air conditioning control system / DTC/circuit diagnosis / A/C switch assembly signal circuit

Diagnosis Procedure

1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT

  1. Using CONSULT, perform "SELF-DIAGNOSIS RESULTS" of HVAC.
  2. Check if any DTC No. is displayed in the self-diagnosis results.

NOTE: If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010.

2.CHECK RX (A/C SWITCH ASSEMBLY → A/C AUTO AMP.) CIRCUIT CONTINUITY

  1. Turn ignition switch OFF.
  2. Disconnect the A/C switch assembly and the A/C auto amp.

    connectors.

  3. Check continuity between A/C switch assembly harness connector M104 (A) terminal 4 and A/C auto amp. harness connector M37 (B) terminal 7.

Nissan Maxima. CHECK RX (A/C SWITCH ASSEMBLY → A/C AUTO AMP.) CIRCUIT CONTINUITY

4 - 7: Continuity should exist.

  1. Check continuity between A/C switch assembly harness connector M104 (A) terminal 4 and ground.

4 - Ground: Continuity should not exist.

3.CHECK TX (A/C AUTO AMP. → A/C SWITCH ASSEMBLY) CIRCUIT CONTINUITY

  1. Check continuity between A/C switch assembly harness connector M104 (A) terminal 3 and A/C auto amp. harness connector M37 (B) terminal 6.

Nissan Maxima. CHECK RX (A/C SWITCH ASSEMBLY → A/C AUTO AMP.) CIRCUIT CONTINUITY

3 - 6: Continuity should exist.

  1. Check continuity between A/C switch assembly harness connector M104 (A) terminal 3 and ground.

3 - Ground: Continuity should not exist.

    Magnet clutch
    Description SYSTEM DESCRIPTION A/C auto amp. controls A/C compressor operation by ambient temperature and signal from ECM. Low Temperature Protection Control A/C auto amp. will turn the A/C co ...

    Power supply and ground circuit
    A/C AUTO AMP. A/C AUTO AMP.: Description COMPONENT DESCRIPTION A/C Auto Amp. (Air Conditioner Automatic Amplifier) The A/C auto amp. (1) has a built-in microcomputer that processes informatio ...

    Other materials:

    Intelligent key battery
    Removal and Installation Release the lock knob at the back of the Intelligent Key and remove the mechanical key. Insert a suitable tool (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the lower part. Replace the battery with new o ...

    Service data and specifications (SDS)
    SERVICE DATA AND SPECIFICATIONS (SDS) General Specification CAUTION:  Use only Genuine NISSAN CVT Fluid NS-2. Never mix with other fluid.  Using CVT fluid other than Genuine NISSAN CVT Fluid NS-2 will deteriorate in driveability and CVT durability, and may damag ...

    Hazard function
    Symptom Table HAZARD AND BUZZER REMINDER FUNCTION MALFUNCTION NOTE: Before performing the diagnosis in the following table, check "Work flow". Refer to DLK-9, "Work Flow". If the following symptoms are detected, check systems shown in the "Diagnosis/service procedure" column ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0071