Inspection [08/2020 - ]: Procedure

WARNING: This page is about a different car, the 2021 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT COMBINATION SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)

Inspect the "NORMAL" mode switch:

Measure the resistance according to the value(s) in the table below.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Component without harness connected (Combination Switch (Electric Parking Brake Switch Assembly))

Standard Resistance

Tester Connection	Condition	Specified Condition
13 (B) - 16 (GND1)	"NORMAL" mode switch being pushed and held	Below 1 Ω
13 (B) - 16 (GND1)	"NORMAL" mode switch not pushed	10 kΩ or higher

If the result is not as specified, replace the combination switch (electric parking brake switch assembly).

Inspect the "SPORT" mode switch:

Measure the resistance according to the value(s) in the table below.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Component without harness connected (Combination Switch (Electric Parking Brake Switch Assembly))

Standard Resistance

Tester Connection	Condition	Specified Condition
12 (P) - 16 (GND1)	"SPORT" mode switch being pushed and held	Below 1 Ω
12 (P) - 16 (GND1)	"SPORT" mode switch not pushed	10 kΩ or higher

If the result is not as specified, replace the combination switch (electric parking brake switch assembly).

Inspect the illumination:

Apply battery voltage to the combination switch (electric parking brake switch assembly) and check that the switch illuminates.

Condition	Specified Condition
Battery positive (+) → Terminal 3 (ILL+) Battery negative (-) → Terminal 7 (ILL-)	Illuminates

*a	Component without harness connected (Combination Switch (Electric Parking Brake Switch Assembly))

If the result is not as specified, replace the combination switch (electric parking brake switch assembly).