DTC P1E42-00

DTC P1E42-00  : Electric Servo Brake System Fail-Safe Relay Stuck OFF

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

DTC (Electric servo brake)

1. DTC Check

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTCs with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   P1E32-00 Master Cylinder Cut Valve Stuck OFF (Stuck Open)
   P1E33-00 Master Cylinder Cut Valve Incorrect Operation
   P1E34-00 Master Cylinder Cut Valve Stuck ON (Stuck Close)
   P1E35-00 Brake Pedal Feel Simulator Cut Valve Incorrect Operation
   P1E36-00 Brake Pedal Feel Simulator Cut Valve No Operation
   P1E37-00 Brake Pedal Feel Simulator Cut Valve Stuck OFF (Stuck Close)
   P1E38-00 Brake Pedal Feel Simulator Cut Valve Stuck ON (Stuck Open)
   P1E42-00 Electric Servo Brake System Fail-Safe Relay Stuck OFF

   DTC Description	DTC	Freeze Frame
   P1E47-00 Electric Servo Brake Control Unit Internal Circuit Malfunction (FET Stuck OFF)

   Is DTC P1E42-00 indicated?

   YES 

   Check for loose terminals and poor connections in the electric servo brake control unit 22P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the electric servo brake control unit/pedal feel simulator .

   YES 

   Go to indicated DTC's troubleshooting.

   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.