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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Horn System) >> Diagnostic Information and Procedures >> DTC B2750: Horn Relay Secondary Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition » On / Vehicle » In Service Mode
  2. Perform the scan tool control function:Horn Relay Command»On and Off

    Verify the component turns On and Off:P13 Horn Assembly

    • If the component does not turn On and Off 
    • Refer to: Circuit/System Testing
    • If the component turns On and Off 
  3. All OK.
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