Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT STEERING HEATER SWITCH

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
5 (IG) - 2 (B)	Steering heater switch is pushed	Below 1 Ω
5 (IG) - 2 (B)	Steering heater switch is not pushed	10 kΩ or higher

If the result is not as specified, replace the steering heater switch.

*a	Component without harness connected (Steering Heater Switch)

(b) Indicator Inspection

(1) Apply battery voltage to the steering heater switch and check that the indicator illuminates.

OK:

Condition

Specified Condition

Battery positive (+) → Terminal 2 (B)

Battery negative (-) → Terminal 4 (E)

Illuminates

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Audio And Visual System(for Gasoline Model): Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier
DESCRIPTION The radio and display receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit. The sound signal that is sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers. If there is an open or short in this circuit, ...

Toyota Avalon (XX50) 2019-2022 Owners Manual