DTC B2800-49, B2801-49, B2802-49

DTC B2800-49, B2801-49, B2802-49  : Internal Failure of the SRS Unit

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 troubleshooting any of these DTCs, check the Battery/system voltage and Battery cable connections - Refer to: Battery Test (2016 2017 2018 2019 2020) . If the voltage is low, repair the charging system, test and charge the Battery, or replace the Battery before troubleshooting the SRS. If the Battery/system voltage is OK, ask the customer if the Battery ever went dead or if the engine was started and run with the Battery in a low state of charge. A dead Battery may trigger one or more of these DTCs.
• Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information .

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
   B2800-49 Internal failure of the SRS unit
   B2801-49 Internal failure of the SRS unit
   B2802-49 Internal failure of the SRS unit

   Is DTC B2800-49, B2801-49, or B2802-49 indicated?

   YES 

   The failure is duplicated. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or replace the SRS unit - Refer to: SRS Unit Removal and Installation (2017 2018 2019 2020), or SRS Unit Removal and Installation .

   NO 

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