P0719 Audi Brake Switch Circuit Low Input
Possible causes
– Faulty Brake Switch
– Brake Switch harness is open or shorted
– Brake Switch circuit poor electrical connection
– Brake Switch harness is open or shorted
– Brake Switch circuit poor electrical connection
What about the obd code?
When the Powertrain Control Module (PCM) detects an open brake switch circuit (0 volts, low input) during accelerations, then the P0719 Audi is set.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0719 Audi Description
The brake switch indicates brake pedal status to the Powertrain Control Module (PCM). The brake switch is a normally-closed switch that supplies battery voltage on circuit 420 to the PCM. Applying the brake pedal opens the switch, interrupting voltage to the PCM. When the brake pedal is released, the PCM receives a constant voltage signal. If the PCM receives a zero voltage signal at the brake switch input, and the torque converter clutch (TCC) is engaged, the PCM de-energizes the TCC solenoid valve. The PCM disregards the brake switch input for TCC scheduling if there is a brake switch circuit fault.
Audi Vehicle:Audi A1,Audi A3,Audi A1,Audi A3,Audi A1,Audi A3,Audi A4,Audi A5,Audi Q3,Audi A5,Audi Q5,Audi A3,Audi A4,Audi A5,Audi TT,Audi Q3,Audi Q5,Audi S3,Audi TTS,Audi RS 3,Audi TT RS,Audi A7,Audi Q7,Audi A8,Audi A6,Audi S4,Audi S5,Audi Q5,Audi S6,Audi S8,Audi S5,Audi A8,Audi R8 V8,Audi RS 5,Audi S6,Audi R8 V10,Audi R8 GT,Audi A8L