Cadillac P1577: Brake Booster Vacuum Sensor Circuit Low Input
Is your scanner showing Cadillac P1577?
No worries. We'll show you what it means and how to deal with it.
Cadillac P1577: Brake Booster Vacuum Sensor Circuit Low Input
OVERVIEWWhat Does The Cadillac P1577 Code Mean?
DTC P0107, P0108, P0703 and P1106 not set, Engine started; and the PCM detected the Brake Booster Vacuum indicated less than -8 kPa or less for 2 seconds.
What Are The Potential Causes Of The Cadillac P1577 Code?
- BBV sensor signal circuit is open or shorted to ground
- BBV sensor VREF is open or shorted to ground
- BBV sensor is damaged or has failed
- PCM has failed
How Can You Fix The Cadillac P1577 Code?
TSB 71-65-25 contains a repair procedure for this code
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
