DTC C1270-11

DTC C1270-11  : Automatic Brake Hold Switch Signal Circuit Short

NOTE: Before you troubleshoot, review the general troubleshooting information .

DTC (VSA)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   C1270-11 Automatic Brake Hold Switch Signal Circuit Short

   Is DTC C1270-11 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 . If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

2. Automatic brake hold switch check

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

   -2. Check the automatic brake hold switch .

   Is the automatic brake hold switch OK?

   YES 

   Go to step 3.

   NO 

   Replace the electric parking brake/automatic brake hold switch .

3. Shorted wire check (BRAKE HOLD line)

   -1. Disconnect the following connectors.

   Electric parking brake/automatic brake hold switch 12P connector

   Gauge control module connector A (32P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Electric parking brake/automatic brake hold switch 12P connector: disconnected
   	Gauge control module connector A (32P): disconnected
   Test point 1	Electric parking brake/automatic brake hold switch 12P connector (female terminals) No. 7:
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short to body ground in the wire between the electric parking brake/automatic brake hold switch and the gauge control module.

   NO 

   The BRAKE HOLD wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or substitute a known-good gauge control module , then recheck. If the symptom/indication goes away with a known-good gauge control module, replace the original gauge control module .