OBD-II Generic Error Code P0719: How to Fix It

Q: What does P0719 mean?

P0719 means the PCM detected a low voltage signal from the Brake Switch B circuit. This usually indicates a faulty brake switch, wiring issue, or blown fuse.

Q: Can I drive with a P0719 code?

You may be able to drive, but the transmission may not shift properly and cruise control may not work. It's best to diagnose and fix the issue promptly to avoid further damage.

Q: Is P0719 a serious problem?

It's moderately serious. While it won't leave you stranded, it can affect drivability and transmission operation. Ignoring it can lead to more severe transmission problems.

Q: How do I test a brake switch?

Use a multimeter to check for continuity between the switch terminals when the brake pedal is pressed. If there is no continuity, the switch is faulty. Also check for voltage at the connector.

Q: Where is the brake switch located?

The brake switch is typically mounted on the brake pedal arm under the dashboard. It is often near the top of the pedal travel.

Abstract

Error code P0719 indicates a problem with the 'Brake Switch B Circuit', meaning the powertrain control module (PCM) has detected a low voltage signal from the brake switch circuit. This can affect transmission shifting and cruise control operation.