F: the Yellow Anti-Lock Brake System (ABS) Warning Indicator Is Always on

Pinpoint Test F: The Yellow Anti-Lock Brake System (ABS) Warning Indicator is Always On

Normal Operation
The anti-lock brake system (ABS) module sends a message over the high speed communication area network (HS-CAN) bus to the instrument cluster to illuminate the ABS warning indicator when certain conditions are met.

The instrument cluster also illuminates the ABS warning indicator to check the bulb operation when the ignition switch is turned to the RUN or START position.

Possible Causes
^ ABS module
^ Instrument cluster

PINPOINT TEST F: THE YELLOW ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR IS ALWAYS ON

F1-F4: