ACTIVE NOISE CONTROL SYSTEM, Diagnostic DTC:P033531

DTC Code DTC Name
P033531 Crankshaft Position Sensor "A" No Signal

DESCRIPTION

This DTC is output when a malfunction has occurred in the engine pulse signal system from the ECM.

DTC No. Detection Item DTC Detection Condition Trouble Area
P033531 Crankshaft Position Sensor "A" No Signal Start the engine, engine speed is 500 rpm or higher and below 6000 rpm 3 seconds after the engine switch is turned on (ACC), the stereo component equalizer assembly detects a malfunction in the engine pulse signal system for 10 seconds or more continuously*

  • Harness or connector

  • ECM

  • Stereo component equalizer assembly

Tech Tips

*: Malfunction monitoring is not performed during the following conditions to prevent erroneous detection.


  • The battery voltage is less than 9.5 V.

  • Before 3 seconds have elapsed after battery voltage has returned to normal.

WIRING DIAGRAM

B006ESQE02
*a from Other Systems
*b NEI
*c Stereo Component Equalizer Assembly

CAUTION / NOTICE / HINT

Note

The active noise control system troubleshooting procedure is based on the premise that the stop and start system, SFI system and entry and start system is operating normally. Check the stop and start system, SFI system and entry and start system first before troubleshooting the active noise control system.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Active Noise Control > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Active Noise Control > Trouble Codes
      OK
      DTC P033531 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT EQUALIZER ASSEMBLY - ECM)


    1. Disconnect the L7 stereo component equalizer assembly connector.

    2. Disconnect the A56 ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L7-3 (NEI) - A56-30 (NEO) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR