DTC B0028-11 (2017 2018 2019 2020)

DTC B0028-11  : Short to Ground in the Front Passenger's Side Airbag Inflator

Special Tools Required 

-SRS Inflator Simulator 07SAZ-TB4011A 

-SRS Simulator Lead K 070AZ-SNAA200 

NOTE: Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct part number and were properly installed .
• Before doing this troubleshooting procedure, review SRS Precautions and Procedures , General Troubleshooting Information , and Battery Terminal Disconnection and Reconnection. - Refer to: Battery Terminal Disconnection and Reconnection .

DTC (SRS)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   - 2. Turn the vehicle to the ON mode, then wait for 10 seconds.

   - 3. Check for DTCs with the HDS.

   DTC Description	DTC
   B0028-11 Short to ground in the front passenger's side airbag inflator

   Is DTC B0028-11 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

2. Front passenger's side airbag inflator check

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

   - 2. Disconnect the negative cable from the battery, then wait at least 3 minutes.

   - 3. Disconnect the front passenger's side airbag inflator 4P connector (A) on the floor wire harness.

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

   - 4. Connect the terminals of SRS simulator lead K to the SRS inflator simulator (2 Ω connectors), then connect SRS simulator lead K to the front passenger's side airbag inflator 4P connector on the floor wire harness.

   - 5. Reconnect the negative cable to the battery.

   - 6. Clear the DTCs with the HDS.

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

   - 8. Check for DTCs with the HDS.

   DTC Description	DTC
   B0028-11 Short to ground in the front passenger's side airbag inflator

   Is DTC B0028-11 indicated?

   YES 

   Go to step 3.

   NO 

   Short to ground in the front passenger's side airbag inflator; replace the front passenger's side airbag , then clear the DTC.

3. Shorted wire check (RSA+, RSA- lines)

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

   - 2. Disconnect the negative cable from the battery, then wait at least 3 minutes.

   - 3. Disconnect the following connector.

   SRS unit connector B (39P)

   - 4. Disconnect the SRS inflator simulator from SRS simulator lead K. Do not disconnect SRS simulator lead K from the front passenger's side airbag inflator 4P connector on the floor wire harness.

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

   Test condition	Vehicle OFF (LOCK) mode
   	Front passenger's side airbag inflator 4P connector (on the floor wire harness): disconnected
   	SRS unit connector B (39P): disconnected
   	Front passenger's side airbag inflator 4P connector (on the floor wire harness): connected to SRS simulator lead K
   Test point 1	SRS simulator lead K black terminal
   Test point 2	Body ground

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

   Is there an open circuit, or at least 1 MΩ?

   YES 

   The RSA+ and RSA- wires are OK. Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit - Refer to: SRS Unit Removal and Installation (2017 2018 2019 2020), . If the DTC does not clear, replace the floor wire harness.

   NO 

   Short to ground in the floor wire harness; replace the floor wire harness, then clear the DTC.