DTC B1C61

DTC B1C61  : Driver's heater current abnormal low

DTC (Ventilated Seat Control Unit)

NOTE: 

• If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
• The ventilated seat control unit does not turn on the seat heater until the seat core temperature is 85 degrees or less. Make sure the seat core temperature is below 85 degrees before troubleshooting.

1. Problem verification

   -1. Clear the DTCs with the HDS.

   Clear DTCs

   -2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   -3. Check for DTCs with the HDS.

   DTC Description	DTC
   B1C61 Driver's heater current abnormal low

   Is DTC B1C61 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.

2. DTC check

   -1. Clear the DTCs with the HDS.

   Clear DTCs

   -2. Turn the vehicle to the OFF (LOCK) mode.

   -3. Disconnect the following connector.

   Driver's seat heater connector A (6P)

   -4. Connect terminals A and B with a jumper wire.

   Terminal A	Driver's seat heater connector A (6P) (male terminals) No. 4:
   Terminal B	Body ground

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

   -5. Turn the vehicle to the ON mode.

   -6. Check for DTCs with the HDS.

   DTC Description	DTC
   B1C61 Driver's heater current abnormal low

   Is DTC B1C61 indicated?

   YES 

   Repair an open or high resistance in the DR HT wire.

   NO 

   Go to step 3.

3. Seat heater check 1

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

   Test condition	Vehicle OFF (LOCK) mode Driver's seat heater connector A (6P): disconnected
   Test point 1	Driver's seat heater connector A (6P) (female terminals) No. 4:
   Test point 2	Driver's seat heater connector A (6P) (female terminals) No. 1:

   Test point 1	Driver's seat heater connector A (6P) (female terminals) No. 6:
   Test point 2	Driver's seat heater connector A (6P) (female terminals) No. 1:

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

   Is there continuity?

   YES 

   Go to step 4.

   NO 

   Replace the driver's seat cushion heater .

4. Open wire check (BACK HT line)

   -1. Disconnect the following connector.

   Driver's seat heater connector B (2P)

   -2. Connect terminals A and B with a jumper wire.

   Terminal A	Driver's seat heater connector A (6P) (male terminals) No. 6:
   Terminal B	Body ground

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

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

   Test condition	Vehicle OFF (LOCK) mode Driver's seat heater connector A (6P): disconnected Driver's seat heater connector B (2P): disconnected
   Test point 1	Driver's seat heater connector B (2P) (male terminals) No. 1:
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Go to step 5.

   NO 

   Repair an open or high resistance in the wire.

5. Seat heater check 2

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

   Test condition	Vehicle OFF (LOCK) mode Driver's seat heater connector A (6P): disconnected Driver's seat heater connector B (2P): disconnected
   Test point 1	Driver's seat heater connector B (2P) (female terminals) No. 1:
   Test point 2	Driver's seat heater connector B (2P) (female terminals) No. 2:

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

   Is there continuity?

   YES 

   Go to step 6.

   NO 

   Replace the driver's seat-back heater .

6. Open wire check (GND lines)

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

   Test condition	Vehicle OFF (LOCK) mode Driver's seat heater connector A (6P): disconnected Driver's seat heater connector B (2P): disconnected
   Test point 1	Driver's seat heater connector A (6P) (male terminals) No. 1:
   Test point 2	Body ground

   Test point 1	Driver's seat heater connector B (2P) (male terminals) No. 2:
   Test point 2	Body ground

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

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

   Is there continuity?

   YES 

   Replace the ventilated seat control unit .

   NO 

   Repair an open or high resistance in the ground wire or poor ground (G601).