DTC B0001-2B: Short To Another Wire Harness In The Driver's Airbag First Inflator (2014 2015)

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 THAT THEY WERE PROPERLY INSTALLED .
• Before doing this troubleshooting procedure, review SRS PRECAUTIONS AND PROCEDURES , GENERAL TROUBLESHOOTING INFORMATION , and 12 VOLT BATTERY TERMINAL DISCONNECTION AND RECONNECTION .
• 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 (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
   B0001-2B: Short to another wire harness in the driver's airbag first inflator

   Is DTC B0001-2B 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. DTC check

   - 1. Check for DTCs with the HDS.

   DTC Description	DTC
   B0010-2B: Short to another wire harness in the front passenger's airbag first inflator
   B0011-2B: Short to another wire harness in the front passenger's airbag second inflator
   B0001-2B: Short to another wire harness in the driver's airbag first inflator

   Is DTC B0010-2B or B0011-2B indicated with DTC B0001-2B?

   YES 

   Go to step 3.

   NO 

   Go to step 4.

3. Shorted wire check (LA1 lines to another lines)

   - 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. Disconnect the following connector.

   SRS UNIT CONNECTOR A (39P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	SRS unit connector A (39P): disconnected

   DTC	SRS Unit Connector A (39P)
   	Test Point 1		Test Point 2
   	Test Circuits	From Terminal	Test Circuits	To Terminal
   B0010-2B	LA1+	No. 8	RA1+	No. 6
   	LA1+	No. 9	RA1+	No. 7
   B0011-2B	LA1+	No. 8	RA2+	No. 2
   	LA1+	No. 9	RA2+	No. 3

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

   Is there continuity?

   YES 

   Short to another wire in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.

   NO 

   The LA1 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 . If the DTC does not clear, replace the dashboard wire harness.

4. Shorted wire check (LA1+ line to LA2- line, LA1+ line to LA2- line) 1

   - 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. Disconnect the following connector.

   SRS UNIT CONNECTOR A (39P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	SRS unit connector A (39P): disconnected
   Test circuit	LA1+, LA2-
   Test point 1	SRS unit connector A (39P) No. 8
   Test point 2	SRS unit connector A (39P) No. 4

   Test circuit	LA1+, LA2-
   Test point 1	SRS unit connector A (39P) No. 9
   Test point 2	SRS unit connector A (39P) No. 5

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

   Is there continuity?

   YES 

   Go to step 5.

   NO 

   The LA1+, LA1-, LA2+, and LA2- 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 . If the DTC does not clear, replace the dashboard wire harness.

5. Shorted wire check (LA1+ line to LA2+ line, LA1- line to LA2- line) 2

   - 1. Remove the driver's airbag.

   - 2. Disconnect the driver's airbag first inflator 2P connector (A) on the cable reel harness.

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

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

   Test condition	Vehicle OFF (LOCK) mode
   	SRS unit connector A (39P): disconnected
   	Driver's airbag inflator 2P connector (LA1, LA2 line) (on the cable reel harness): disconnected
   Test circuit	LA1+, LA2-
   Test point 1	SRS unit connector A (39P) No. 8
   Test point 2	SRS unit connector A (39P) No. 4

   Test circuit	LA1+, LA2-
   Test point 1	SRS unit connector A (39P) No. 9
   Test point 2	SRS unit connector A (39P) No. 5

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

   Is there continuity?

   YES 

   Go to step 6.

   NO 

   The LA1+, LA1+, LA2-, and LA2- wires are OK. Faulty driver's airbag first inflator; REPLACE THE DRIVER'S AIRBAG , then clear the DTC.

6. Shorted wire check (LA1+ line to LA2- line, LA1+ line to LA2- line) 3

   - 1. Remove the column covers.

   - 2. Disconnect cable reel connector B (4P) on the dashboard wire harness.

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

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

   Test condition	Vehicle OFF (LOCK) mode
   	SRS unit connector A (39P): disconnected
   	Driver's airbag inflator 2P connector (LA1, LA2 lines) (on the cable reel harness): disconnected
   	Cable reel connector B (4P) (on the dashboard wire harness): disconnected
   Test circuit	LA1+, LA2-
   Test point 1	SRS unit connector A (39P) No. 8
   Test point 2	SRS unit connector A (39P) No. 4

   Test circuit	LA1+, LA2-
   Test point 1	SRS unit connector A (39P) No. 9
   Test point 2	SRS unit connector A (39P) No. 5

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

   Is there continuity?

   YES 

   Short to another wire in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.

   NO 

   The LA1+, LA1-, LA2+, and LA2- wires are OK. Short to another wire in the cable reel; REPLACE THE CABLE REEL , then clear the DTC.