DTC Troubleshooting: C1C02-12

DTC C1C02-12: Brake Pedal Stroke Sensor Signal Circuit 1 Short To Battery

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

DTC Description	DTC	Freeze Frame
C1C02-12 Brake Pedal Stroke Sensor Signal Circuit 1 Short To Battery

DTC check:

DTC check

?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 wait 5 seconds or more. NOTE: Do not open and close the driver's door.

?4.	Turn the vehicle to the ON mode.

?5.

Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
C1C02-12 Brake Pedal Stroke Sensor Signal Circuit 1 Short To Battery
C1C04-11 Brake Pedal Stroke Sensor Power Circuit Short To Ground or Battery

Is DTC C1C02-12 indicated?


	YES

If only C1C02-12 is indicated, go to step 2.


	YES

If DTC C1C04-11 is also indicated, go to DTC C1C04-11.?


	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.?

Shorted wire check (PTS1 line to +B EBB line):

Shorted wire check (PTS1 line to +B EBB line)

?1.	Turn the vehicle to the OFF (LOCK) mode with driver's door open.

?2.	Wait for 3 minutes. NOTE: Do not close the driver's door.

?3.	Remove the 12 volt battery.

?4.

Disconnect the following connectors.

Electric brake booster 26P connector

Brake pedal stroke sensor 4P connector

?5.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Electric brake booster 26P connector: disconnected
	Brake pedal stroke sensor 4P connector: disconnected
Test point 1	Electric brake booster 26P connector No. 22
Test point 2	Electric brake booster 26P connector No. 2

Is there continuity?


	YES

Repair a short to power in the wire between the electric brake booster and the brake pedal stroke sensor.?


	NO

Go to step 3.

Shorted wire check (PTS1 line to +B OPTION line):

Shorted wire check (PTS1 line to +B OPTION line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Electric brake booster 26P connector: disconnected
	Brake pedal stroke sensor 4P connector: disconnected
Test point 1	Electric brake booster 26P connector No. 22
Test point 2	Electric brake booster 26P connector No. 4

Is there continuity?


	YES

Repair a short to power in the wire between the electric brake booster and the brake pedal stroke sensor.?


	NO

Go to step 4.

Shorted wire check (PTS1 line to IG1 OPTION line):

Shorted wire check (PTS1 line to IG1 OPTION line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Electric brake booster 26P connector
	Brake pedal stroke sensor 4P connector: disconnected
Test point 1	Electric brake booster 26P connector No. 22
Test point 2	Electric brake booster 26P connector No. 24

Is there continuity?


	YES

Repair a short to power in the wire between the electric brake booster and the brake pedal stroke sensor.?


	NO

Go to step 5.

Shorted wire check (PTS1 line to PTS VS line):

Shorted wire check (PTS1 line to PTS VS line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Electric brake booster 26P connector: disconnected
	Brake pedal stroke sensor 4P connector: disconnected
Test point 1	Electric brake booster 26P connector No. 22
Test point 2	Electric brake booster 26P connector No. 11

Is there continuity?


	YES

Repair a short to power in the wire between the electric brake booster and the brake pedal stroke sensor.?


	NO

Check for loose terminals and poor connections in the electric brake booster 26P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the electric brake booster.?