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

INSPECTION

PROCEDURE

1. INSPECT HEATED OXYGEN SENSOR (for Bank 1)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (HT1B) - 2 (+B)	20°C (68°F)	5 to 10 Ω
1 (HT1B) - 4 (E2)	Always	10 kΩ or higher

If the result is not as specified, replace the heated oxygen sensor.

*a	Component without harness connected (Heated Oxygen Sensor)

2. INSPECT HEATED OXYGEN SENSOR (for Bank 2)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (HT2B) - 2 (+B)	20°C (68°F)	5 to 10 Ω
1 (HT2B) - 4 (E2)	Always	10 kΩ or higher

If the result is not as specified, replace the heated oxygen sensor.

*a	Component without harness connected (Heated Oxygen Sensor)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Meter / Gauge System(for Gasoline Model): Tachometer Malfunction
DESCRIPTION In this circuit, the combination meter assembly receives engine speed signals from the ECM via CAN communication. The combination meter assembly displays the engine speed calculated based on the data received from the ECM. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replacing the ...

Toyota Avalon (XX50) 2019-2022 Owners Manual