DTC C1440/98: Unusual Bank Angle Detected: Procedure

2012 Toyota Prius ThreeSECTION Procedure
  1. CHECK DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
    2. Perform a road test.
    3. Check if the same DTC is recorded. Refer to DTC CHECK / CLEAR .

      Result

      Result Proceed to
      DTC (C1440/98) is output A
      DTC (C1440/98) is not output B
      Yaw rate and acceleration sensor DTC is output C

    B → END 

    C → See step   3 

    A: Go to next step 

  2. CLEAR DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .

      HINT: 

      • If the skid control ECU determines that the vehicle is being driven at a steep bank angle, the skid control ECU stores DTC C1440/98 while VSC operation is temporarily disabled.
      • It is not a malfunction if the system and sensor circuits are normal and if the normal VSC operation resumes.

    NEXT → END 

  3. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to  DIAGNOSTIC TROUBLE CODE CHART 
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.