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Home >> Cadillac >> 2018 >> Escalade ESV Platinum, RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brake System >> Diagnostic Information And Procedures >> Brake Warning Indicator Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Verify that the brake fluid has the proper level. The fluid level should be above minimum level.
    • Go to next step: If above minimum level 
  2. Ignition ON.
  3. Verify the scan tool Brake Fluid Level Sensor parameter. The reading should be Ok.
    • If the parameter is Low 

      Refer to Circuit/System Testing

    • Go to next step: If the parameter is Ok 
  4. Verify the scan tool Park Brake Switch parameter changes between Applied and Released while applying and releasing the parking brake.
    • If the parameter does not change 

      Refer to Circuit/System Testing - Park Brake Switch Malfunction.

    • Go to next step: If the parameter changes 
  5. Verify the brake warning indicator turns ON and OFF, when commanding the instrument cluster All Indicators On and Off with a scan tool.
    • If the brake warning indicator does not turn ON and OFF 

      Replace the P16 Instrument Cluster.

    • Go to next step: If the brake warning indicator turns ON and OFF 
  6. All OK.
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