DTC B0004-13 (2014 2015 2016)
DTC B0004-13 : Open or Increased Resistance in the Driver's Knee Airbag Inflator
Special Tools Required
-SRS Inflator Simulator 07SAZ-TB4011A
-SRS Simulator Lead L 070AZ-SNAA300
- 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 that they 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 (2016 2017 2018 2019 2020) or Battery Terminal Disconnection and Reconnection (2014 2015) .
- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software , and retest.
| DTC Description | DTC |
|---|---|
| B0004-13 Open or increased resistance in the driver's knee airbag inflator |
DTC (SRS)
- 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 B0004-13 Open or increased resistance in the driver's knee airbag inflator Is DTC B0004-13 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.
- Driver's knee 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. Remove the driver's dashboard lower cover.
- 4. Disconnect the driver's knee airbag inflator 2P connector (A) on the dashboard wire harness.
- 5. Connect the terminals of SRS simulator lead L to the SRS inflator simulator (2 Ω connectors), then connect SRS simulator lead L to the driver's knee airbag inflator 2P connector on the dashboard wire harness.
- 6. Reconnect the negative cable to the battery.
- 7. Clear the DTCs with the HDS.
- 8. Turn the vehicle to the ON mode, then wait for 10 seconds.
- 9. Check for DTCs with the HDS.
DTC Description DTC B0004-13 Open or increased resistance in the driver's knee airbag inflator Is DTC B0004-13 indicated?
YES
Go to step 3.
NO
Open in the driver's knee airbag inflator; replace the driver's knee airbag , then clear the DTC.
- Open wire check (FLBP+, FLBP- 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 A (39P) - Refer to: SRS Unit Removal and Installation (2014 2015 2016) - 4. Disconnect the SRS inflator simulator from SRS simulator lead L. Do not disconnect SRS simulator lead L from the driver's knee airbag inflator 2P connector on the dashboard wire harness.
- 5. Measure the resistance of the test point.
Test condition Vehicle OFF (LOCK) mode Driver's knee airbag inflator 2P connector (on the dashboard wire harness): disconnected SRS unit connector A (39P): disconnected Driver's knee airbag inflator 2P connector (on the dashboard wire harness): connected to SRS simulator lead L Test circuit FLBP+, FLBP- Test point SRS simulator lead L black terminal Is there 1.0 Ω or less?
YES
The FLBP+ and FLBP- wires are OK. Faulty SRS unit or poor connection at SRS unit connector A (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit - Refer to: SRS Unit Removal and Installation (2014 2015 2016) . If the DTC does not clear, replace the dashboard wire harness.
NO
Open in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.