Chassis, generic

C060A Park Brake Switch Stuck

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

C060A means the park brake switch reports a state that does not change when it should, or that contradicts itself: a jammed or welded contact, a button held down mechanically, or paired contacts that disagree. EPB buttons carry duplicated contacts for safety; a TRW patent notes that the controller flags an error when the paired signals do not arrive within about 30 ms, and that a blocked actuator can close just one of them. Advics counts apply and release signals seen together as a switch failure, lights a warning lamp and stores a code. Continental's design falls back to a majority vote and, while moving, chooses release over apply. No maker publishes C060A itself. The button may stop working in one or both directions.

Likely causes

Button jammed by dirt, sticky residue or a broken housing
One contact of the redundant pair welded or worn
Object in the console pressing the button

Symptoms

  • Park brake warning lamp or message
  • Brake does not apply or release from the button
  • Code returns right after clearing while the button is untouched

Repair estimate

DifficultyEasyDIY possible
Parts and labour€20–250
Time0.3–1 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

park brake switchepb control module

Related codes

C0609P05E3P05E7

References: patents.google.com, patents.google.com, patents.google.com.