P1A1B - Brake System Control Module Forced Engine Running

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

Possible causes

  • Intake air system leak
  • Positive crankcase ventilation (PCV) system
  • Vacuum leak
  • Vacuum pump
  • Vacuum pump circuit

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1a1b Description

This code sets when the Anti-Lock Brake System (ABS) module requested the engine on.
OBDII Code P1a1b - Brake System Control Module Forced Engine Running - AutoCodes.com

P1A1B Information for specific makes

  • P1A1B FORD Brake System Control Module Forced Engine Running
  • P1A1B LINCOLN Brake System Control Module Forced Engine Running
  • P1A1B MERCURY Brake System Control Module Forced Engine Running

Need more help?

Get the P1a1b code diagnosed by a professional: Find a repair shop in your area

Related Information

P1A1B Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P1a1b code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧