DTC Troubleshooting: C0040-62
DTC C0040-62: Brake Lamp Switch Failure (Stuck)
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
DTC
Freeze Frame
C0040-62 Brake Lamp Switch Failure (Stuck)
    

1.
Problem verification:

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.

?4.
Test-drive the vehicle at 12 mph (20 km/h) or more for 6 minutes, and accelerate up to 25 mph (40 km/h) or more, then stop. Repeat this step 3 times.
NOTE: Drive the vehicle on the road, not on a lift.

?5.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
C0040-62 Brake Lamp Switch Failure (Stuck)
    

Is DTC C0040-62 indicated?

     
YES
     
     
     
If only DTC C0040-62 is indicated, go to step 2.
     
NO
     
     
     
If any other DTCs are indicated, go to the indicated DTCs troubleshooting.?
     
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.
Brake pedal position switch check:

Brake pedal position switch check
?1.
Check the brake pedal position switch.

Is brake pedal position switch OK?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
3.
PGM-FI system DTCs check:

PGM-FI system DTCs check
?1.
Check for PGM-FI system DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
     

Are any DTCs indicated?

     
YES
     
     
     
Go to indicated DTCs troubleshooting. After all PGM-FI system DTC's have been repaired, return to VSA and clear this code.?
     
NO
     
     
     
Go to step 4.
4.
PCM check (substitution):

PCM check (substitution)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Substitute a known-good PCM.

?3.
Turn the vehicle to the ON mode.

?4.
Clear the DTC with the HDS.


?5.
Turn the vehicle to the OFF (LOCK) mode.

?6.
Test-drive the vehicle at 12 mph (20 km/h) or more for 6 minutes, and accelerate up to 25 mph (40 km/h) or more, then stop. Repeat this step for 3 times.
NOTE: Drive the vehicle on the road, not on a lift.

?7.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
C0040-62 Brake Lamp Switch Failure (Stuck)
    

Is DTC C0040-62 indicated?

     
YES
     
     
     
Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit.?
     
NO