Circuit/System Verification

Verify that the brake fluid is above minimum level.
- If low
  Refer to Brake Fluid Loss .
- Go to next step: If above minimum level
Ignition ON.
Verify the scan tool Brake Fluid Level Sensor is OK.
- If the parameter is Low
  Refer to Circuit/System Testing - Brake Fluid Level Switch Malfunction.
- Go to next step: If the parameter is OK
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
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
All OK.