DTC B0004-13

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DTC B0004-13 : Open or Increased Resistance in the Driver's Knee Airbag Inflator

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 12 Volt Battery Terminal Disconnection and Reconnection .

DTC Description	DTC
B0004-13 Open or increased resistance in the driver's knee airbag inflator

DTC (SRS)

Problem verification

-1. Apply the parking brake.

-2. Clear the DTCs with the HDS.

-3. Turn the vehicle to the ON mode, then wait for 10 seconds.

-4. 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.

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 12 volt battery, then wait at least 3 minutes.

-3. Remove the driver's dashboard lower cover .

-4. Disconnect the following connector.

Driver's knee airbag inflator 2P connector (on the dashboard wire harness)

-5. Connect terminals A and B with a jumper wire.

Terminal A	Driver's knee airbag inflator 2P connector (female terminals) No. 1 (on the dashboard wire harness):
Terminal B	Driver's knee airbag inflator 2P connector (female terminals) No. 2 (on the dashboard wire harness):

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

-6. Reconnect the negative cable to the 12 volt 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.

Faulty driver's knee airbag inflator; replace the driver's knee airbag , then clear the DTC.

Open wire check (LKA+, LKA- lines)

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

-2. Disconnect the negative cable from 12 volt battery, then wait at least 3 minutes.

-3. Remove the jumper wire from the driver's knee airbag inflator 2P connector on the dashboard wire harness.

-4. Disconnect the following connector.

SRS unit connector A (43P)

-5. Connect terminals A and B with a jumper wire.

Terminal A	SRS unit connector A (43P) No. 14
Terminal B	SRS unit connector A (43P) No. 15

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

Test condition	Vehicle OFF (LOCK) mode
	Driver's knee airbag inflator 2P connector (on the dashboard wire harness): disconnected
	SRS unit connector A (43P): disconnected
	SRS unit connector A (43P) terminals No. 14 and No. 15: jumped
Test point 1	Driver's knee airbag inflator 2P connector (female terminals) No. 1 (on the dashboard wire harness):
Test point 2	Driver's knee airbag inflator 2P connector (female terminals) No. 2 (on the dashboard wire harness):

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

Is there 1.0 Ω or less?

YES

The LKA+ and LKA- wires are OK. Faulty SRS unit or poor connection at SRS unit connector A (43P) and the SRS unit. Check the connection; if the connection is OK, check for any authorized service information related to the DTCs or symptoms you are troubleshooting or replace the SRS unit . If the DTC does not clear, replace the dashboard wire harness.

Open or increased resistance in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.