DTC C0044-49: Master Cylinder Pressure Sensor Failure (Internal Circuit Failure)

NOTE: Before you troubleshoot, review the general troubleshooting information .

• 1. Brake pedal height check:

  1. Check the brake pedal height .

  Is brake pedal height OK?

  YES 

  Go to step 2.

  NO 

  Adjust the brake pedal height .

• 2. Problem verification:

  1. Turn the vehicle to the ON mode.

  2. Clear the DTC with the HDS.

  3. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

  4. Check for DTCs with the HDS.

  DTC Description	DTC	Freeze Frame
  C0044-49 Master Cylinder Pressure Sensor Failure (Internal Circuit Failure)

  Is DTC C0044-49 indicated?

  YES 

  The failure is duplicated. Go to step 3.

  NO 

  Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting . If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.

• 3. VSA modulator-control unit check (update):

  1. Update the VSA modulator-control unit if it does not have the latest software .

  2. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

  3. Check for DTCs with the HDS.

  Is DTC C0044-49 indicated?

  YES 

  Check for loose terminals and poor connections in the VSA modulator-control unit 38P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit .

  NO 

  Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.