DTC B0029-2B: Short To Another Wire Harness In The Right Side Curtain 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
   B0029-2B: Short to another wire harness in the right side curtain airbag first inflator

   Is DTC B0029-2B 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
   B0020-2B: Short to another wire harness in the driver's side airbag inflator
   B0021-2B: Short to another wire harness in the left side curtain airbag first inflator
   B0028-2B: Short to another wire harness in the front passenger's side airbag inflator
   B0070-2B: Short to another wire harness in the driver's seat belt tensioner
   B0072-2B: Short to another wire harness in the front passenger's seat belt tensioner
   B0029-2B: Short to another wire harness in the right side curtain airbag first inflator

   Is DTC B0020-2B, B0021-2B, B0028-2B, B0070-2B, or B0072-2B indicated with DTC B0029-2B?

   YES 

   Go to step 3.

   NO 

   Short to another wire in the left or right side wire harness; replace the faulty harness, then clear the DTC.

3. Shorted wire check (RCA 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 B (39P)

   - 4. Check for continuity between test points 1 and 2 of SRS unit connector B (39P) according to table.

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

   DTC	SRS Unit Connector B (39P)
   	Test Point 1		Test Point 2
   	Test Circuits	From Terminal	Test Circuits	To Terminal
   B0020-2B	RCA+	No. 12	LSA+	No. 5
   	RCA+	No. 13	LSA+	No. 6
   B0021-2B	RCA+	No. 12	LCA+	No. 1
   	RCA+	No. 13	LCA+	No. 2
   B0028-2B	RCA+	No. 12	RSA+	No. 3
   	RCA+	No. 13	RSA+	No. 4
   B0070-2B	RCA+	No. 12	LRP+	No. 24
   	RCA+	No. 13	LRP+	No. 25

   DTC	SRS Unit Connector B (39P)
   	Test Point 1		Test Point 2
   	Test Circuits	From Terminal	Test Circuits	To Terminal
   B0072-2B	RCA+	No. 12	RRP+	No. 22
   	RCA+	No. 13	RRP+	No. 23

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

   Is there continuity?

   YES 

   Short to another wire in the left or right side wire harness; replace the faulty harness, then clear the DTC.

   NO 

   The RCA 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 . If the DTC does not clear, replace the left or right side wire harness.