Nissan Maxima Service and Repair Manual: P0037, P0038, P0057, P0058 HO2S2 heater

Description

SYSTEM DESCRIPTION

Nissan Maxima. SYSTEM DESCRIPTION

The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed, amount of intake air and engine coolant temperature.

OPERATION

Nissan Maxima. OPERATION

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is between 11 V at idle.

2.PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT.
  2. Start engine and warm it up to the normal operating temperature.
  3. Turn ignition switch OFF and wait at least 10 seconds.
  4. Turn ignition switch ON.
  5. Turn ignition switch OFF and wait at least 10 seconds.
  6. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
  7. Let engine idle for 1 minute.
  8. Check 1st trip DTC.

With GST

Follow the procedure "With CONSULT" above.

Diagnosis Procedure

1.CHECK GROUND CONNECTION

  1. Turn ignition switch OFF.
  2. Check ground connection E9.

2.CHECK HO2S2 POWER SUPPLY CIRCUIT

Nissan Maxima. CHECK HO2S2 POWER SUPPLY CIRCUIT

  1. Disconnect heated oxygen sensor 2 (HO2S2) harness connector.
  2. Turn ignition switch ON.
  3. Check the voltage between HO2S2 harness connector and ground.

Nissan Maxima. CHECK HO2S2 POWER SUPPLY CIRCUIT

3.DETECT MALFUNCTIONING PART

Check the following.

  • IPDM E/R connector F10
  • 15 A fuse (No. 37)
  • Harness for open or short between heated oxygen sensor 2 and fuse

4.CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check the continuity between HO2S2 harness connector and ECM harness connector.
  4. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

5.CHECK HEATED OXYGEN SENSOR 2 HEATER

6.REPLACE HEATED OXYGEN SENSOR 2

Replace malfunctioning heated oxygen sensor 2.

CAUTION:

  •  Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
  •  Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant (commercial service tool).

7.CHECK INTERMITTENT INCIDENT

Component Inspection

1.CHECK HEATED OXYGEN SENSOR 2 HEATER

Nissan Maxima. CHECK HEATED OXYGEN SENSOR 2 HEATER

Check resistance between HO2S2 terminals as per the following.

Nissan Maxima. CHECK HEATED OXYGEN SENSOR 2 HEATER

2.REPLACE HEATED OXYGEN SENSOR 2

CAUTION:

  •  Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
  •  Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant (commercial service tool).
    P0031, P0032, P0051, P0052 A/F sensor 1 heater
    Description SYSTEM DESCRIPTION The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element ...

    P0075, P0081 IVT control solenoid valve
    Description Intake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the ECM. The intake valve timing control solenoid valve changes the oil amount ...

    Other materials:

    Wind deflector
    Removal and Installation REMOVAL Open the glass lid. Remove the side screw (A) to release the wind deflector side arms (1). : Front Disconnect and release the inner blind (1) slide clip from wind deflector. : Front Remove the front screws (A), then remove wind deflector ...

    Instrument lower panel LH
    Removal and Installation REMOVAL Using a suitable tool, gently remove the instrument side finisher (LH) (1). Remove the instrument lower panel (LH) (1). Open the fuse block cover and remove the instrument lower panel screw (A). Disconnect the harness connectors and aspirator ...

    Adjusting the screen
    1. While on a RearView Monitor screen, touch the touch-screen display. The Camera Settings screen will come up. 2. Touch the Display Settings key. 3. Touch the "Brightness," "Contrast," "Tint," "Color," or "Black Level" key. 4. Adjust the item by touching the + or - key on the touch ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0052