DTC P057B-00

DTC P057B-00  : Brake Pedal Stroke Sensor Circuit Range/Performance Problem

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

DTC (Electric servo brake)

1. 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 to the ON mode.

   -4. Press the brake pedal several times.

   -5. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   P057B-00 Brake Pedal Stroke Sensor Circuit Range/Performance Problem

   Is DTC P057B-00 indicated?

   YES 

   The failure is duplicated. Go to step 3.

   NO 

   Go to step 2.

2. Brake pedal stroke sensor check

   -1. Check the parameter(s) below with the HDS without pressing the brake pedal.

   Signal	Threshold		Current conditions
   	Value	Unit	Value	Unit
   Brake Pedal Stroke Sensor Voltage	Less than 0.96	V
   Brake Pedal Stroke Redundant Sensor Voltage	More than 4.04	V

   Do the current conditions match the threshold?

   YES 

   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. Brake pedal stroke sensor installation check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Check the brake pedal stroke sensor and its connector for damage and proper installation.

   Is the brake pedal stroke sensor installation OK?

   YES 

   Replace the brake pedal .

   NO 

   Reinstall the brake pedal, and check the mounting position .