OBD-II code · Powertrain (generic)
P0719 Brake Switch B Circuit Low
Brake Switch B Circuit Low: the signal voltage is below the expected range. Often a short to ground or high resistance in the wiring.
Is it safe to drive with P0719?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBrake switch defective
- PossibleWiring shorted to ground
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Brake Switch, Switch Wiring
Related codes
- P0571Brake Switch "A" Circuit Malfunction
- P0724Brake Switch B Circuit High
- P0716Input/Turbine Speed Sensor "A" Circuit Range/Performance
- P0717Input/Turbine Speed Sensor Circuit No Signal
- P0718Input or Turbine Shaft Speed Sensor A Circuit Intermittent
- P071ATransmission Mode Switch A Circuit
- P071BTransmission Mode Switch A Circuit Low
- P071CTransmission Mode Switch A Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.