Cadillac P1575: Extended Travel Brake Switch Circuit Malfunction

What Does The Cadillac P1575 Code Mean?

DTC P0703, P1574 and P1604 not set, engine started, Traction Control and ABS inactive, vehicle driven with the non-drive wheel speed over 20 mph, and then to below 4 mph, and the PCM detected at least a 6 mph decrease in the non-drive wheel speed in 400 m.

What Are The Potential Causes Of The Cadillac P1575 Code?

Below are some potential causes of this DTC:

• Brake switch circuit is open, shorted to ground or shorted to B+
• Brake switch power circuit is open (test the IGN1 fuse)
• Brake switch is out-of-adjustment, damaged or has failed
• EBTCM has failed

Note: TSB 01-06-03-009 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:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> GM Genuine Parts D1539J Brake Light Switch

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.