LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2014 >> LaCrosse Premium, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> DTC P0703: Brake Switch Signal Message Counter Incorrect >> Circuit/System Verification
September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Circuit/System Verification

  1. Ignition ON.
  2. Verify that no DTCs are set, except DTC P0703.
    • If only DTC P0703 is set 
  3. Replace the K9 Body Control Module.
  4. Verify DTC P0703 does not set when operating the vehicle within the conditions for running the DTC.
    • If the DTC sets 

      Replace the K20 Engine Control Module.

    • If the DTC does not set 
  5. All OK.