What does code P0724 mean?

Q: What does code P0724 mean?

Brake Switch 'B' Circuit High. P0724 means the transmission control module (TCM) sees the brake switch 'B' circuit stuck at a high voltage when it expects the signal to change as the brake pedal is pressed and released. The TCM uses this switch to know when the brakes are applied, and a constant high reading prevents it from correctly managing torque converter lockup and shift scheduling.

DTC codes / P07xx · Transmission / P0724

P0724Brake Switch 'B' Circuit High

P0724 means the transmission control module (TCM) sees the brake switch 'B' circuit stuck at a high voltage when it expects the signal to change as the brake pedal is pressed and released. The TCM uses this switch to know when the brakes are applied, and a constant high reading prevents it from correctly managing torque converter lockup and shift scheduling.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.