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

INSPECTION

PROCEDURE

1. INSPECT AIR FUEL RATIO 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 (HA1A) - 2 (+B)

20°C (68°F)

1.6 to 3.2 Ω

1 (HA1A) - 4 (A1A-)

Always

10 kΩ or higher

If the result is not as specified, replace the air fuel ratio sensor.

*a

Component without harness connected

(Air Fuel Ratio Sensor)

2. INSPECT AIR FUEL RATIO 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 (HA2A) - 2 (+B)

20°C (68°F)

1.6 to 3.2 Ω

1 (HA2A) - 4 (A2A-)

Always

10 kΩ or higher

If the result is not as specified, replace the air fuel ratio sensor.

*a

Component without harness connected

(Air Fuel Ratio Sensor)

    Components

    Installation

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