DTC B2890-13

DTC B2890-13  : An open in the acoustic vehicle alerting speaker circuit

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

DTC (Acoustic Vehicle Alerting Control Unit)

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. Wait for at least 20 seconds.

   -4. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   B2890-13 An open in the acoustic vehicle alerting speaker circuit

   Is DTC B2890-13 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.

2. AUDIBLE SPKR+, AUDIBLE SPKR- lines output check

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

   -2. Disconnect the following connector.

   Acoustic vehicle alerting speaker 2P connector

   -3. Raise the vehicle on a lift.

   -4. Turn the vehicle to the READY TO DRIVE mode.

   -5. Shift the transmission to D position/mode, release the brake pedal but do not operate the accelerator pedal.

   NOTICE:  Do not put on the brake hard when working on a running vehicle on a lift. It may cause some damage to the drive-line.

   -6. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle READY TO DRIVE mode Acoustic vehicle alerting speaker 2P connector: disconnected
   Test point 1	Acoustic vehicle alerting speaker 2P connector (female terminals) No. 1:
   Test point 2	Acoustic vehicle alerting speaker 2P connector (female terminals) No. 2:

   NOTE:  The output voltage changes depending on vehicle speed.

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

   Is there about 5 V?

   YES 

   Replace the acoustic vehicle alerting speaker .

   NO 

   Go to step 3.

3. Open wire check (AUDIBLE SPKR+, AUDIBLE SPKR- lines)

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

   -2. Disconnect the following connector.

   Acoustic vehicle alerting control unit 12P connector

   -3. Measure the resistance between test points 1 and 2 respectively.

   Test condition	Vehicle ON mode Acoustic vehicle alerting speaker 2P connector: disconnected Acoustic vehicle alerting control unit 12P connector: disconnected
   Test point 1	Acoustic vehicle alerting speaker 2P connector (female terminals) No. 2:
   Test point 2	Acoustic vehicle alerting control unit 12P connector No. 3

   Test point 1	Acoustic vehicle alerting speaker 2P connector (female terminals) No. 1:
   Test point 2	Acoustic vehicle alerting control unit 12P connector No. 4

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

   Is there 1.0 Ω or less?

   YES 

   Replace the acoustic vehicle alerting control unit .

   NO 

   Repair an open or high resistance in the wire.