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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Heater & Air Conditioning Control System (DTC/Circuit Diagnosis) (Except Hybrid)) >> DTC/Circuit Diagnosis >> Ionizer >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. CHECK FUSE

    1. Turn ignition switch OFF.
    2. Check 10A fuse [No. 30, located in fuse block (J/B)].
      NOTE:

      Refer to TERMINAL ARRANGEMENT .

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Replace the blown fuse after repairing the affected circuit.

  2. CHECK IONIZER POWER SUPPLY

    1. Disconnect ionizer connector.
    2. Turn ignition switch ON.
    3. Check voltage between ionizer harness connector and ground.
      + - Voltage
      (Approx.)
      Ionizer
      Connector Terminal
      M119 1 Ground Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair harness or connector between ionizer and fuse block (J/B).

  3. CHECK IONIZER GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Check continuity between ionizer harness connector and ground.
      Ionizer - Continuity
      Connector Terminal
      M119 3 Ground Yes

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair harness or connector.

  4. CHECK IONIZER (ON/OFF) CONTROL SIGNAL CIRCUIT

    1. Connect ionizer connector.
    2. Disconnect A/C auto amp. connector.
    3. Turn ignition switch ON.
    4. Check voltage between A/C auto amp. harness connector and ground.
      + - Voltage
      (Approx.)
      A/C auto amp.
      Connector Terminal
      M50 38 Ground Battery voltage

    Is the inspection result normal?

    YES 

    Replace A/C auto amp. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 5  .

  5. CHECK IONIZER (ON/OFF) CONTROL SIGNAL CIRCUIT FOR OPEN

    1. Turn ignition switch OFF.
    2. Disconnect ionizer connector.
    3. Check continuity between A/C auto amp. harness connector and ionizer harness connector.
      A/C auto amp. Ionizer Continuity
      Connector Terminal Connector Terminal
      M50 38 M119 4 Yes

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Repair harness or connector.

  6. CHECK IONIZER (ON/OFF) CONTROL SIGNAL CIRCUIT FOR SHORT

    Check continuity between A/C auto amp. harness connector and ground.

    A/C auto amp. - Continuity
    Connector Terminal
    M50 38 Ground No

    Is the inspection result normal?

    YES 

    Replace ionizer. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair harness or connector.

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