DTC B2563

DTC B2563  : LIN communication Bus line Error between Master Wiper and Slave Wiper

DTC (Body Control Module)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   -3. Check for DTCs with the HDS.

   DTC Description	DTC
   B2563 LIN communication Bus line Error between Master Wiper and Slave Wiper

   Is DTC B2563 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

2. Fuse check

   -1. Check the following fuse.

   Fuse

   No. B12-8

   Is the fuse OK?

   YES 

   Go to step 3.

   NO 

   Replace the fuse. If the fuse blows again, repair a short to ground in the No. B12-8 fuse circuit.

3. +B WIPER2, GND line check

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

   -2. Disconnect the following connector.

   Passenger's windshield wiper control unit/motor 5P connector

   -3. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Passenger's windshield wiper control unit/motor 5P connector: disconnected
   Test point 1	Passenger's windshield wiper control unit/motor 5P connector No. 3
   Test point 2	Passenger's windshield wiper control unit/motor 5P connector No. 1

   Is there battery voltage?

   YES 

   Go to step 5.

   NO 

   Go to step 4.

4. Open wire check (+B WIPER2 line)

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

   Test condition	Vehicle OFF (LOCK) mode Passenger's windshield wiper control unit/motor 5P connector: disconnected
   Test point 1	Passenger's windshield wiper control unit/motor 5P connector No. 3
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair an open or high resistance in the wire between the passenger's windshield wiper control unit/motor and body ground or poor ground (G202).

   NO 

   An open or poor connection in the wire.

5. Open wire check (WIP COMMUNICATION line)

   -1. Disconnect the following connector.

   Driver's windshield wiper control unit/motor 5P connector

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

   Test condition	Vehicle OFF (LOCK) mode Driver's windshield wiper control unit/motor 5P connector: disconnected Passenger's windshield wiper control unit/motor 5P connector: disconnected
   Test point 1	Driver's windshield wiper control unit/motor 5P connector No. 2
   Test point 2	Passenger's windshield wiper control unit/motor 5P connector No. 2

   Is there continuity?

   YES 

   Go to step 6.

   NO 

   Repair an open or high resistance in the wire.

6. Shorted wire check (WIP COMMUNICATION line)

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

   Test condition	Vehicle OFF (LOCK) mode Driver's windshield wiper control unit/motor 5P connector: disconnected Passenger's windshield wiper control unit/motor 5P connector: disconnected
   Test point 1	Driver's windshield wiper control unit/motor 5P connector No. 2
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short to ground in the wire.

   NO 

   The WIP COMMUNICATION wire is not shorted. Replace the passenger's windshield wiper control unit/motor . If the DTC is still present, replace the driver's windshield wiper control unit/motor .