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:

    Precautions in repairing high strength steel
    High Strength Steel (HSS) High strength steel is used for body panels in order to reduce vehicle weight. Accordingly, precautions in repairing automotive bodies made of high strength steel are described below: Read the following precautions when repairing HSS: Additional points to c ...

    Main line between DLC and HVAC circuit
    Diagnosis Procedure 1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect the following harness connectors. ECM A/C auto amp. Check the continuity between the data link connector and the A/C ...

    Basic inspection
    COLLISION DIAGNOSIS FOR USA AND CANADA FOR USA AND CANADA : For Frontal Collision FOR FRONTAL COLLISION: When SRS is activated in a collision CAUTION: Due to varying models and option levels, not all parts listed in the chart below apply to all vehicles. WORK PROCEDURE Before performing a ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0299