Nissan Maxima Service and Repair Manual: P0327, P0328, P0332, P0333 KS

Description

The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM.

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 more than 10 V at idle.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine and run it for at least 5 seconds at idle speed.
  2. Check 1st trip DTC.

Diagnosis Procedure

1.CHECK GROUND CONNECTION

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

2.CHECK KNOCK SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

  1. Disconnect knock sensor harness connector and ECM harness connector.
  2. Check the continuity between knock sensor harness connector and ECM harness connector
  3. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK KNOCK SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

3.DETECT MALFUNCTIONING PART

Check the following.

  • Harness connectors F69, F201
  • Harness for open or short between knock sensor and ECM

4.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

  1. Check the continuity between knock sensor harness connector and ECM harness connector.
  2. Also check harness for short to ground and short to power

Nissan Maxima. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

5.DETECT MALFUNCTIONING PART

Check the following.

  • Harness connectors F69, F201
  • Harness for open or short between knock sensor and ECM

6.CHECK KNOCK SENSOR

7.CHECK INTERMITTENT INCIDENT

Component Inspection

1.CHECK KNOCK SENSOR

Nissan Maxima. CHECK KNOCK SENSOR

  1. Turn ignition switch OFF.
  2. Disconnect knock sensor harness connector.
  3. Check resistance between knock sensor terminal as per the following. NOTE: It is necessary to use an ohmmeter which can measure more than 10 MΩ.

Nissan Maxima. CHECK KNOCK SENSOR

CAUTION: Never use any knock sensors that have been dropped or physically damaged. Use only new ones.

    P0300, P0301, P0302, P0303, P0304, P0305, P0306 misfire
    DTC Logic DTC DETECTION LOGIC When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crankshaft position (CKP) sensor (POS) signal to vary, ECM ca ...

    P0335 CKP sensor (POS)
    Description The crankshaft position sensor (POS) is located on the oil pan facing the gear teeth (cogs) of the signal plate. It detects the fluctuation of the engine revolution. The sensor ...

    Other materials:

    Precaution
    Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver ...

    L terminal circuit (short)
    Description The terminal "L" circuit controls the charge warning lamp. The charge warning lamp turns ON when the ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine running, the charge warning lamp turns off. If the charge warning lamp i ...

    Basic inspection
    INSPECTION AND ADJUSTMENT Operational Check DESCRIPTION The purpose of the operational check is to check that the individual system operates normally Conditions: Engine running at normal operating temperature INSPECTION PROCEDURE 1.CHECK MEMORY FUNCTION Start the engine. Operate the te ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2020 Copyright www.nimainfo.com
    0.0339