DTC P1E49-00, P1E4B-00

DTC P1E49-00  : Slave Cylinder Drive Motor Current Malfunction (Stuck)

DTC P1E4B-00  : Slave Cylinder Drive Motor Circuit Open

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 DTCs 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
   P1E49-00 Slave Cylinder Drive Motor Current Malfunction (Stuck)
   P1E4B-00 Slave Cylinder Drive Motor Circuit Open

   Is DTC P1E49-00 or P1E4B-00 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   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.

2. Open wire check (MV, MU, MW lines) 1

   -1. Turn the vehicle to the OFF (LOCK) mode with driver's door open.

   -2. Wait for 3 minutes.

   NOTE:  Do not close the driver's door.

   -3. Disconnect the following connector.

   Electric servo brake control unit 22P connector

   -4. Check for continuity between test points 1 and 2 individually.

   Test condition	Vehicle OFF (LOCK) mode
   	Electric servo brake control unit 22P connector: disconnected

   Connector	Test point 1	Test point 2
   Electric servo brake control unit 22P connector	No. 1	No. 2
   		No. 3
   	No. 2	No. 1
   		No. 3
   	No. 3	No. 1
   		No. 2

   Is there continuity?

   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 .

   NO 

   Go to step 3.

3. Open wire check (MV, MU, MW lines) 2

   -1. Disconnect the following connector.

   Tandem motor cylinder 9P connector

   -2. Measure the resistance between test points 1 and 2 individually.

   Test condition	Vehicle OFF (LOCK) mode
   	Electric servo brake control unit 22P connector: disconnected
   	Tandem motor cylinder 9P connector: disconnected
   Test circuit 1
   Test point 1	Electric servo brake control unit 22P connector No. 1
   Test point 2	Tandem motor cylinder 9P connector (female terminals) No. 2:

   Test circuit 2
   Test point 1	Electric servo brake control unit 22P connector No. 2
   Test point 2	Tandem motor cylinder 9P connector (female terminals) No. 1:

   Test circuit 3
   Test point 1	Electric servo brake control unit 22P connector No. 3
   Test point 2	Tandem motor cylinder 9P connector (female terminals) No. 3:

   Courtesy of HONDA, U.S.A., INC.

   Is there 1.0 Ω or less?

   YES 

   Replace the motor .

   NO 

   Repair an open in the wire between the electric servo brake control unit and the tandem motor cylinder.