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Home >> Buick >> 2013 >> Verano Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 236 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0703 >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2012 Buick Verano. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTC P0571 is not set.
    • If the brake system or brake lights do not operate properly, refer to DTC P0571 .
  2. Verify that DTC P0703 is not set.
    • If DTC P0703 is set, replace the K20 ECM. Clear the DTC and road test the vehicle. If DTC P0703 resets, replace the K9 BCM.
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