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:

    Stop lamp
    Wiring Diagram ...

    P1612 chain of ECM-IMMU
    Description BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK. ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if ignition switch is turned ON. DTC Logic DTC DETECTION LOGIC ...

    Symptom diagnosis
    UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION) Description Hard steering when fully turning the steering wheel. Light steering when driving at a high speed. Diagnosis Procedure 1.CHECK SYSTEM FOR POWER SUPPLY AND GROUND Perform trouble diagnosis for power supply and ground cir ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2019 Copyright www.nimainfo.com
    0.0253