Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Symptom	Suspected Area	Link
Electric parking brake does not operate	Proceed to "Electric Parking Brake does not Operate"
Parking brake indicator light does not illuminate (red) or turn off when parking brake is manually engaged and disengaged	Proceed to "Electric Parking Brake does not Operate"
Electric parking brake AUTO function (shift-linked function) does not operate (shift-linked parking brake does not lock or release)	Proceed to "Electric Parking Brake AUTO Function Circuit"
Message not displayed on multi-information display when AUTO function set to ON/OFF	Proceed to "Message Not Displayed on Multi-information Display When AUTO Function Set to ON/OFF"
Electric parking brake switch indicator light on electric parking brake switch (electric parking brake switch assembly) does not illuminate or turn off when lock and release operations are performed	Electric parking brake switch indicator light drive circuit
	Wire harness or connector (electric parking brake switch (electric parking brake switch assembly) - skid control ECU (brake actuator assembly))	-
	Electric parking brake switch (electric parking brake switch assembly)
	Skid control ECU (brake actuator assembly)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Gasoline Model): Brake Hold Standby Indicator Light Circuit
DESCRIPTION The brake hold standby indicator light turns on if brake hold control is possible when the following conditions required for operation standby are met and the brake hold switch (electric parking brake switch assembly) is pressed while the engine switch is on (IG). Conditions required for ...

Toyota Avalon (XX50) 2019-2022 Owners Manual