Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000Z9KD
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: 2GR-FKS (ENGINE CONTROL): AIR FUEL RATIO SENSOR: INSPECTION; 2017 - 2020 MY Sienna [08/2016 -        ]

INSPECTION

PROCEDURE

1. INSPECT AIR FUEL RATIO SENSOR

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (HA1A) - 2 (+B)

1 (HA2A) - 2 (+B)

20°C (68°F)

1.6 to 3.2 Ω

1 (HA1A) - 4 (A1A-)

1 (HA2A) - 4 (A2A-)

Always

10 kΩ or higher

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

*A

for Bank 1

*B

for Bank 2

*a

Component without harness connected

(Air Fuel Ratio Sensor)