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

INSPECTION

PROCEDURE

1. INSPECT ACCELERATION SENSOR ASSEMBLY

(a) Connect 3 1.5 V dry cell batteries in series.

(b) Connect a positive (+) lead from the batteries to terminal 3 (SGB) and a negative (-) lead to terminal 2 (SGG).

Standard Voltage:

for LH Side

Tester Connection	Condition	Specified Condition
1 (SGFL) - 2 (SGG)	Sensor stationary	Approx. 2.0 to 2.5 V
1 (SGFL) - 2 (SGG)	Sensor vibrating vertically	Changes between approx. 0.9 and 3.6 V

for RH Side

Tester Connection	Condition	Specified Condition
1 (SGFR) - 2 (SGG)	Sensor stationary	Approx. 2.0 to 2.5 V
1 (SGFR) - 2 (SGG)	Sensor vibrating vertically	Changes between approx. 0.9 and 3.6 V

*A	for LH Side
*B	for RH Side
*a	Component without harness connected (Front Acceleration Sensor Assembly)
	Top
	Bottom

NOTICE:

Do not apply a voltage of more than 6 V.
Do not drop the front acceleration sensor assembly. If it is dropped, replace it with a new one.
Never place the front acceleration sensor assembly upside down.

HINT:

When the front acceleration sensor assembly is tilted, it may output a different value.

If the result is not as specified, replace the front acceleration sensor assembly.

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Audio And Visual System(for Hv Model): Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter
DESCRIPTION The stereo component amplifier assembly receives a vehicle speed signal from the combination meter assembly to control the ASL function. HINT: A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the ...

Toyota Avalon (XX50) 2019-2022 Owners Manual