Torque Converter/Brake Switch B Circuit Intermittent
What does P0719 mean?
The P0719 code means the vehicle's onboard diagnostic system has detected: Torque Converter/Brake Switch B Circuit Intermittent. This is a moderate severity code.
Common Symptoms
- Check Engine Light illuminated intermittently
- Cruise control cuts out randomly
- Brake lights flicker
- Occasional engine stumble when stopping
Probable Causes (Ranked by Likelihood)
- Worn brake light switch with intermittent contact Very High
- Loose brake switch connector High
- Intermittent break in brake switch wiring Moderate
- Brake pedal bushing wear affecting switch contact Moderate
Step-by-Step Diagnostic Procedure
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Press the brake pedal repeatedly while watching brake lights for flickering
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Wiggle the brake switch connector while monitoring the switch signal
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Check the brake pedal bushing -- a worn bushing changes pedal travel and switch contact
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Inspect brake switch wiring at the pedal area for damage
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Replace the brake light switch if intermittent contact is confirmed
Frequently Asked Questions
Can I drive with code P0719?
Drive short distances only. Torque Converter/Brake Switch B Circuit Intermittent can cause unsafe or unpredictable transmission behavior.
What causes P0719?
The most common cause is a faulty sensor or wiring issue. Worn brake light switch with intermittent contact is the most likely cause.
Is P0719 expensive to fix?
Typical repair costs range from $20 - $120 (parts and labor). Sensor replacement is the most common fix.