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Home >> Ford >> 2013 >> Escape S >> Repair and Diagnosis >> External Pages >> Different car >> Section 209 (Engine Controls - Powertrain DTC Charts & Descriptions (Hybrid)) >> DTC Diagnosis >> P1A1B (SOBDMC) - Brake System Control Module - Forced Engine Running

P1A1B (SOBDMC) - Brake System Control Module - Forced Engine Running

WARNING: This page is about a different car, the 2014 Lincoln MKZ, 2014 Ford Fusion, and 2014 Ford C-Max. However, it is still accessible from the selected car via links, so may be relevant.
P1A1B (SOBDMC) - BRAKE SYSTEM CONTROL MODULE - FORCED ENGINE RUNNING

Description:  This DTC sets when the anti-lock brake system (ABS) module is requesting continuous engine operation to provide vacuum assistance.
Possible Causes: 
  • Electric vacuum pump concern
  • Disconnected vacuum hose
  • Brake booster concern
Diagnostic Aids:  This is an informational DTC indicating a concern in the ABS. Refer to the Vehicle Dynamic Systems article, to continue diagnosis of the ABS.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.