DTC U019B (174)

DTC U019B  : F-CAN Malfunction (Battery Charge Control Module - Battery Charger)

DTC (Electric Powertrain)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode.

   -4. Turn the vehicle to the ON mode, and wait for 10 seconds.

   -5. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   U019B F-CAN Malfunction (Battery Charge Control Module - Battery Charger)

   Is DTC U019B indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the battery charger and the battery charge control module. 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. CAN gateway system DTCs check

   -1. Check for CAN gateway system DTCs with the HDS.

   DTC Description	DTC

   DTC (CAN Gateway)

   Are any DTCs indicated?

   YES 

   Go to the CAN gateway system DTC(s) troubleshooting .

   NO 

   Go to step 3.

3. Open wire check (F-CAN D_H line, F-CAN D_L line)

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

   -2. Do the 12 volt battery terminal disconnection procedure .

   -3. Disconnect the following connectors.

   Battery charge control module connector B (40P)

   Battery charger 8P connector

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

   Test condition	Vehicle OFF (LOCK) mode
   	Battery charger 8P connector: disconnected
   	Battery charge control module connector B (40P): disconnected
   Test point 1	Battery charge control module connector B (40P) No. 3
   Test point 2	Battery charger 8P connector (female terminals) No. 4:

   Test point 1	Battery charge control module connector B (40P) No. 23
   Test point 2	Battery charger 8P connector (female terminals) No. 3:

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

   Is there continuity?

   YES 

   Go to step 4.

   NO 

   Repair an open in the F-CAN D_H wire or the F-CAN D_L wire between the battery charger and the battery charge control module.

4. Battery charger check

   -1. Substitute a known-good battery charger .

   -2. Reconnect all connectors.

   -3. Do the 12 volt battery terminal disconnection procedure .

   -4. Turn the vehicle to the ON mode.

   -5. Clear the DTC with the HDS.

   -6. Turn the vehicle to the OFF (LOCK) mode.

   -7. Turn the vehicle to the ON mode, and wait for 10 seconds.

   -8. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   U019B F-CAN Malfunction (Battery Charge Control Module - Battery Charger)

   Is DTC U019B indicated?

   YES 

   Check for any authorized service information related to the DTC(s) or symptoms you are troubleshooting or substitute a known-good battery charge control module .

   NO 

   Replace the original battery charger .