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:
Front Floor Console Multifunction Switch Replacement
Front Floor Console Multifunction Switch Replacement
Callout
Component Name
Preliminary Procedure
Remove the front floor console. Refer to Front Floor Console Replacement
1
Accessory Switch
...
Exhaust Manifold Installation
Clean the exhaust manifold sealing surface.
Install a NEW exhaust manifold gasket (1) to the cylinder head.
Caution: Refer to Fastener Caution.
Caution: Refer to Torque-to-Yield Fastener Caution.
Install the exhaust manifold (3) and tighten the NEW nu ...
Transmission Mount Replacement - Left Side
Removal Procedure
Remove the battery tray. Refer to
Battery Tray Replacement.
Install the engine support fixture. Refer to
Engine Support Fixture.
Remove and DISCARD the left transmission mount to
bracket bolts (1).
Remove the left transmission mo ...
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