Chevrolet Sonic Repair Manual: Brake Warning System Description and Operation
- Brake Warning Indicator
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- Brake Warning Block Diagram
B80 Park Brake Switch B20 Brake Fluid Level Switch K9 Body Control Module P16 Instrument Cluster (HW) Hard-Wired (HW) Hard-Wired (DA) Serial Data (B80) B80 Park Brake Switch (B20) B20 Brake Fluid Level Switch (K9) K9 Body Control Module (P16) P16 Instrument Cluster
The instrument cluster turns the brake warning indicator ON when the following occurs:
- The instrument cluster performs the bulb check. The brake warning indicator illuminates for 5 s.
- When the Electronic Brake Control Module (EBCM) detects low brake fluid level it sends a serial data message to the instrument cluster, which will illuminate the red brake indicator.
- The Body Control Module (BCM) detects that the parking brake is engaged. The instrument cluster receives a serial data message from the BCM requesting illumination.
- Driver Information Center Messages
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When the Electronic Brake Control Module (EBCM) detects low brake fluid level it sets DTC C0267 and sends a serial data message to the Driver Information Center , which will display Brake Fluid Low message.
Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is
not working, the remaining circuit can still work to stop the vehicle. For normal
braking performance, both circuits ...
Master Cylinder Bench Bleeding
Warning: Refer to Brake Fluid Irritant Warning.
Caution: Refer to Brake Fluid Effects on Paint and Electrical
Components Caution.
Secure the mounting flange of the bra ...
Other materials:
Brake Rotor Assembled Lateral Runout Measurement
Special Tools
CH-41013 Rotor Surfacing Kit
CH-42450-A Wheel Hub Resurfacing Kit
CH-45101 Hub and Wheel Runout Gauge
CH-45101-100 Conical Brake Rotor Washers
For equivalent regional tools, refer to Special Tools.
Warning: Refer to Brake Dust Warning.
Note:
B ...
Engine Coolant Thermostat Replacement (LUV)
Removal Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling.
Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct
Replacement.
Remove the engine coolant temperature sensor connector (1).
Disconnect the radi ...
Front Bumper Fascia Opening Lower Cover Replacement
Front Bumper Fascia Opening Lower Cover Replacement
Callout
Component Name
1
Front Bumper Fascia Opening Lower Cover Push-In Retainer
2
Front Bumper Fascia Opening Lower Cover Bolt (Qty:?ۉ ...