Cadillac P1576: Brake Booster Vacuum Sensor Circuit High Input

Is your scanner showing Cadillac P1576?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Cadillac P1576: Brake Booster Vacuum Sensor Circuit High Input

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$100-$250
Can I Still Drive?
:
Yes

What Does The Cadillac P1576 Code Mean?

DTC P0107, P0108, P0703 and P1106 not set, Engine started; Extended Travel Switch open for one second, MAP value at 30 kPa or more during the period Extended Travel Switch was open, and the PCM detected the Brake Booster Vacuum was 82 kPa or more for 5 st

What Are The Potential Causes Of The Cadillac P1576 Code?

  • BBV sensor signal circuit is shorted to VREF or system power
  • BBV sensor ground circuit is open
  • BBV sensor is damaged or has failed
  • PCM has failed
  • 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:

>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> GM Genuine Parts 12633238 Engine Control Module
>>> GM Genuine Parts 15823208 Power Brake Booster Vacuum Sensor

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

GM, 2013, Service Bullettin – Prior To Any Circuit Testing.

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