What does code P1576 mean?

Q: What does code P1576 mean?

BBV Sensor Circuit High Voltage. P1576 on Chrysler vehicles indicates the Brake Booster Vacuum (BBV) sensor circuit is reporting a voltage higher than the expected range, which the powertrain control module (PCM) interprets as a fault. The PCM monitors this sensor to ensure the brake booster has adequate vacuum for safe power-assist braking, and a high-voltage signal typically means the sensor is unplugged, shorted to power, or the reference voltage is abnormal.

DTC codes / Chrysler codes / P1576

P1576 · ChryslerBBV Sensor Circuit High Voltage

P1576 on Chrysler vehicles indicates the Brake Booster Vacuum (BBV) sensor circuit is reporting a voltage higher than the expected range, which the powertrain control module (PCM) interprets as a fault. The PCM monitors this sensor to ensure the brake booster has adequate vacuum for safe power-assist braking, and a high-voltage signal typically means the sensor is unplugged, shorted to power, or the reference voltage is abnormal.

SystemPowertrain

Code typeChrysler specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for Chrysler vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.