DTC B0050-13

DTC B0050-13  : Open or Increased Resistance in the Driver's Seat Belt Buckle Switch

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 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. Buckle and unbuckle the driver's seat belt several times.

   -3. Check for DTCs with the HDS.

   DTC Description	DTC
   B0050-13 Open or increased resistance in the driver's seat belt buckle switch

   Is DTC B0050-13 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.

2. Driver's seat belt buckle switch check

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

   -2. Disconnect the driver's seat belt buckle switch 2P connector (A) on the floor wire harness.

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

   -3. Connect terminals A and B with a jumper wire.

   Terminal A	Driver's seat belt buckle switch 2P connector (female terminals) No. 1 (on the floor wire harness):
   Terminal B	Driver's seat belt buckle switch 2P connector (female terminals) No. 2 (on the floor wire harness):

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

   -4. Turn the vehicle to the ON mode, then wait for 10 seconds.

   -5. Check for DTCs with the HDS.

   DTC Description	DTC
   B0050-11 Short or decreased resistance in the driver's seat belt buckle switch

   Is DTC B0050-11 indicated?

   YES 

   Faulty driver's seat belt buckle switch; replace the driver's seat belt buckle assembly , then clear the DTC.

   NO 

   Go to step 3.

3. Open wire check (FLBC line)

   -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 jumper wire from the driver's seat belt buckle switch 2P connector on the floor wire harness.

   -4. Disconnect the following connector.

   SRS unit connector B (39P)

   -5. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Driver's seat belt buckle switch 2P connector (on the floor wire harness): disconnected
   	SRS unit connector B (39P): disconnected
   Test point 1	Driver's seat belt buckle switch 2P connector (female terminals) No. 1 (on the floor wire harness):
   Test point 2	SRS unit connector B (39P) No. 29

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

   Is there 1.0 Ω or less?

   YES 

   The FLBC wire is OK. Go to step 4.

   NO 

   Open in the floor wire harness; replace the floor wire harness, then clear the DTC.

4. Open wire check (GND line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Driver's seat belt buckle switch 2P connector (on the floor wire harness): disconnected
   	SRS unit connector B (39P): disconnected
   Test point 1	Driver's seat belt buckle switch 2P connector (female terminals) No. 2 (on the floor wire harness):
   Test point 2	Body ground

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

   Is there 1.0 Ω or less?

   YES 

   The GND wire is 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, 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 floor wire harness.

   NO 

   Open in the floor wire harness; check for a poor ground at G501. If the ground is OK, replace the floor wire harness, then clear the DTC.