DTC P1E4D-00

DTC P1E4D-00  : Motor Angle Signal Malfunction

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
   P1E4D-00 Motor Angle Signal Malfunction

   Is DTC P1E4D-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. Determine possible failure area (HALL lines, others)

   -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.

   Tandem motor cylinder 9P connector

   -4. Turn the vehicle to the ON mode.

   -5. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Tandem motor cylinder 9P connector: disconnected
   Test point 1	Tandem motor cylinder 9P connector (female terminals) No. 4:
   Test point 2	Tandem motor cylinder 9P connector (female terminals) No. 9:

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

   Is there about 5 V?

   YES 

   Go to step 5.

   NO 

   Go to step 3.

3. Open wire check (ESB_SVCC line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Tandem motor cylinder 9P connector: disconnected
   	Electric servo brake control unit 22P connector: disconnected
   Test point 1	Tandem motor cylinder 9P connector (female terminals) No. 4:
   Test point 2	Electric servo brake control unit 22P connector No. 12

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

   Is there 1.0 Ω or less?

   YES 

   The ESB_SVCC wire is OK. Go to step 4.

   NO 

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

4. Open wire check (ESV_SGND line)

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

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

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

   Is there 1.0 Ω or less?

   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 

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

5. Open wire check (HALL lines)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Tandem motor cylinder 9P connector: disconnected
   	Electric servo brake control unit 22P connector: disconnected
   Test circuit 1
   Test point 1	Tandem motor cylinder 9P connector (female terminals) No. 6:
   Test point 2	Electric servo brake control unit 22P connector No. 20

   Test circuit 2
   Test point 1	Tandem motor cylinder 9P connector (female terminals) No. 7:
   Test point 2	Electric servo brake control unit 22P connector No. 21

   Test circuit 3
   Test point 1	Tandem motor cylinder 9P connector (female terminals) No. 8:
   Test point 2	Electric servo brake control unit 22P connector No. 22

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

   Is there 1.0 Ω or less?

   YES 

   The HALL wires are not open. Go to step 6.

   NO 

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

6. Shorted wire check (HALL U, HALL V, HALL W lines)

   -1. Measure the resistance between the appropriate electric servo brake control unit 22P connector terminal and body ground individually (see table).

   Test condition	Vehicle OFF (LOCK) mode
   	Tandem motor cylinder 9P connector
   	Electric servo brake control unit 22P connector: disconnected

   Connector	Test point 1	Test point 2
   Electric servo brake control unit 22P connector	No. 20	Body ground
   	No. 21
   	No. 22

   Is there 1 MΩ or more?

   YES 

   Go to step 7.

   NO 

   Repair a short to body ground in the wire between the electric servo brake control unit and the tandem motor cylinder.

7. Motor check

   -1. Substitute a known-good motor .

   -2. Reconnect all connectors.

   -3. Turn the vehicle to the ON mode.

   -4. Clear the DTCs with the HDS.

   -5. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

   -6. Press the brake pedal several times.

   -7. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   P1E4D-00 Motor Angle Signal Malfunction

   Is DTC P1E4D-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 .

   NO 

   Replace the original motor .