DTC P1023: Camshaft Position Signal Output "B" Circuit; DTC P2614: Camshaft Position Signal Output Circuit / Open: Procedure

2010 Lexus LS 460L AWDSECTION Procedure
  1. REPLACE CAMSHAFT TIMING CONTROL MOTOR (BANK 1 OR BANK 2) 
    1. Replace the camshaft timing control motor. Refer toREMOVAL .

    NEXT: Go to next step 

  2. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED 
    1. Connect the Techstream to the DLC3.
    2. Start the engine and idle it for 10 seconds.
    3. Enter the following menus: Powertrain / Engine / Trouble Codes.
    4. Read the DTCs.

      Result

      Display (DTC Output) Proceed to
      No output A
      Other DTCs B

    B → See step   3 

    A → END 

  3. GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART 
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.