DTC B2861-11

DTC B2861-11  : Front Passenger's E-Pretensioner Spool Sensor Signal Circuit Short to Another Signal Circuit

NOTE: 

• Before doing this troubleshooting procedure, review General Troubleshooting Information .
• Before replacing the E-pretensioner unit, check the E-pretensioner unit software version with the HDS. If the software version is not the latest, update the E-pretensioner unit software , and retest.

DTC (E-pretensioner)

1. Problem verification

   - 1. Clear the DTCs with the HDS.

   - 2. Turn the vehicle to the ON mode.

   - 3. Check for DTCs with the HDS.

   DTC Description	DTC
   B2861-11 Front Passenger's E-Pretensioner Spool Sensor Signal Circuit Short to Another Signal Circuit

   Is DTC B2861-11 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.

2. R SPOOL A line check 1

   - 1. Check the parameter(s) below with the HDS.

   Signal	Current conditions
   	Values	Unit
   Front Passenger's Spool Sensor A Input Voltage

   When slowly pulling out the seat belt, is there battery voltage?

   YES 

   Go to step 6.

   NO 

   Go to step 3.

3. R SPOOL A line check 2

   - 1. Check the parameter(s) below with the HDS.

   Signal	Current conditions
   	Values	Unit
   Front Passenger's Spool Sensor A Input Voltage

   When slowly pulling out the seat belt, is there 0 V?

   YES 

   Go to step 4.

   NO 

   Go to step 5.

4. Shorted wire check (R SPOOL A line)

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

   - 2. Disconnect the following connector.

   Front passenger's E-pretensioner spool sensor 3P connector

   - 3. Check for continuity between test points 1 and 2 without disconnecting the front passenger's E-pretensioner unit 14P connector.

   Test condition	Vehicle OFF (LOCK) mode
   	Front passenger's E-pretensioner spool sensor 3P connector: disconnected

   Test circuit	R SPOOL A
   Test point 1	Front passenger's E-pretensioner unit 14P connector No. 12 (YEL)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short to ground in the wire between the front passenger's E-pretensioner unit and the front passenger's E-pretensioner spool sensor.

   NO 

   The R SPOOL A wire is OK. Faulty front passenger's E-pretensioner spool sensor; replace the front passenger's seat belt .

5. Shorted wire check (R SPOOL A line to R SPOOL B line)

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

   - 2. Disconnect the following connector.

   Front passenger's E-pretensioner spool sensor 3P connector

   - 3. Check for continuity between test points 1 and 2 without disconnecting the front passenger's E-pretensioner unit 14P connector.

   Test condition	Vehicle OFF (LOCK) mode
   	Front passenger's E-pretensioner spool sensor 3P connector: disconnected
   Test circuit	R SPOOL A, R SPOOL B
   Test point 1	Front passenger's E-pretensioner unit 14P connector No. 12 (YEL)
   Test point 2	Front passenger's E-pretensioner unit 14P connector No. 6 (PUR)

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

   Is there continuity?

   YES 

   Repair a short in the wires between the front passenger's E-pretensioner unit and the front passenger's E-pretensioner spool sensor.

   NO 

   The R SPOOL A and R SPOOL B wires are OK. Faulty front passenger's E-pretensioner spool sensor; replace the front passenger's seat belt .

6. Shorted wire check (R SPOOL PWR line to R SPOOL A line)

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

   - 2. Disconnect the following connector.

   Front passenger's E-pretensioner spool sensor 3P connector

   - 3. Check for continuity between test points 1 and 2 without disconnecting the front passenger's E-pretensioner unit 14P connector.

   Test condition	Vehicle OFF (LOCK) mode
   	Front passenger's E-pretensioner spool sensor 3P connector: disconnected
   Test circuit	R SPOOL PWR, R SPOOL A
   Test point 1	Front passenger's E-pretensioner unit 14P connector No. 8 (WHT)
   Test point 2	Front passenger's E-pretensioner unit 14P connector No. 12 (YEL)

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

   Is there continuity?

   YES 

   Repair a short in the wires between the front passenger's E-pretensioner unit and the front passenger's E-pretensioner spool sensor.

   NO 

   The R SPOOL PWR and R SPOOL A wires are OK. Faulty front passenger's E-pretensioner spool sensor; replace the front passenger's seat belt .