Pinpoint Test R : The Brake Warning Indicator Is Never On: Notes

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Instrument Cluster for schematic and connector information.

Normal Operation and Fault Conditions

See Brake Warning Indicator, ABS/Brake/Stability-Traction Control System Indication descriptions and see Brake Fluid Level Switch component description. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

If the brake (red) warning indicator request, parking brake warning indicator request, red brake warning indicator request or electronic park brake (red) indicator request messages are missing or invalid for less than 5 seconds, the IPC defaults the brake warning indicator to the last indication state (on or off), based upon the last message received.

Possible Sources

Brake fluid level switch
Parking brake system concern (electronic parking brake)
Parking brake switch (manual parking brake)
BCM
IPC

Visual Inspection and Diagnostic Pre-checks

Inspect the:

brake fluid level switch for signs of any external damage.
wiring harness for signs of a pinched harness causing a shorted circuit.
verify the parking brake operates correctly when applied and released