Brake And Parking Brake Warning Light Symptom Diagnosis

BRAKE AND PARKING BRAKE WARNING LIGHT SYMPTOM DIAGNOSIS

Condition	Possible Cause	Action
Brake warning light does not light up when brake fluid level is low or parking brake is pulled up or for 5 seconds after turning ON ignition switch (with ABS vehicle only)	Circuit fuse blown	Replace fuse and check for short circuit .
	Data (information) cannot be received by CAN communication	Check BCM for DTC referring to DTC CHECK .
	Brake fluid level switch faulty	Check brake fluid level switch referring to BRAKE FLUID LEVEL SWITCH INSPECTION .
	Parking brake switch faulty	Check parking brake switch referring to PARKING BRAKE SWITCH INSPECTION .
	ABS system faulty	Refer to ABS CHECK .
	Wiring or ground faulty	Repair circuit .
	Combination meter faulty	Replace combination meter .
	BCM faulty	Replace after making sure that none of above parts is faulty .
Brake warning light stays ON	Data (information) cannot be received by CAN communication	Check BCM for DTC referring to DTC CHECK .
	Brake fluid level switch faulty	Check brake fluid level switch referring to BRAKE FLUID LEVEL SWITCH INSPECTION .
	Parking brake switch faulty	Check parking brake switch referring to PARKING BRAKE SWITCH INSPECTION .
	EBD system faulty	Refer to EBD WARNING LAMP (BRAKE WARNING LAMP) CHECK .
	Wiring or ground faulty	Repair circuit .
	Combination meter faulty	Replace combination meter .
	BCM faulty	Replace after making sure that none of above parts is faulty .