Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Brake Warning System




Brake Warning System Description and Operation

Brake Warning Indicator

The instrument panel cluster (IPC) illuminates the Red Brake Warning indicator when one or more of the following occurs.

* The body control module (BCM) detects that the park brake is engaged.

* The IPC detects the low brake fluid level switch is closed.

* The electronic brake control module (EBCM) detects an ABS malfunction which disables dynamic rear proportioning (DRP), and sends a serial data message to the IPC.

* The IPC performs the bulb check at the start of each ignition cycle. The Red Brake Warning indicator illuminates momentarily.

* The IPC detects a loss of serial data with the EBCM.