DTC B1125

DTC B1125  : Driver's Power Window Motor A Pulse Malfunction

DTC (Door Multiplex Control Unit)

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .

1. Problem verification

   -1. Check the parameter (s) below with the HDS.

   Signal	Current conditions
   	Values	Unit
   Driver's P/W Motor Pulse A

   Does the information indicator display DETECT while the window is moving, and display NONE when the window is stopped?

   YES 

   Intermittent failure, the system is OK at this time.

   NO 

   Go to step 2.

2. Power window motor pulse check

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

   -2. Disconnect the following connector.

   Driver's power window motor 6P connector

   -3. Connect terminals A and B with a jumper wire.

   Terminal A	Driver's power window motor 6P connector No. 5 (BLU)
   Terminal B	Body ground

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

   -4. Connect and disconnect the jumper wire to body ground repeatedly.

   -5. Check the parameter (s) below with the HDS.

   Signal	Current conditions
   	Values	Unit
   Driver's P/W Motor PulseA

   Does the information indicator display DETECT?

   YES 

   Faulty driver's power window motor; replace the driver's door regulator .

   NO 

   Go to step 3.

3. Shorted wire check (P/W DR MTR PLSA line)

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

   -2. Disconnect the jumper wire.

   -3. Disconnect the following connector.

   Power window master switch 37P connector

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

   Test condition	Vehicle OFF (LOCK) mode Driver's power window motor 6P connector: disconnected Power window master switch 37P connector: disconnected
   Test circuit	P/W DR MTR PLSA
   Test point 1	Power window master switch 37P connector No. 17 (BLU)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short to ground in the wire.

   NO 

   Repair an open or high resistance in the wire.