Last Modified: 11-29-2007 1.6 G
Service Category: Engine/Hybrid System Section: Engine Control
Model Year: 2008 Model: Sequoia Doc ID: RM000000Q6300XX
Title: 2UZ-FE ENGINE CONTROL: HEATED OXYGEN SENSOR: ON-VEHICLE INSPECTION (2008 Sequoia)

ON-VEHICLE INSPECTION

1. CHECK HEATED OXYGEN SENSOR

(a) Disconnect the 2 heated oxygen sensor connectors.

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

Standard Resistance (for Bank 1 Sensor 2):

Tester Connection

Condition

Specified Condition

1 (HT1B) - 2 (+B)

20°C (68°F)

11 to 16 Ω

Standard Resistance (for Bank 2 Sensor 2):

Tester Connection

Condition

Specified Condition

1 (HT2B) - 2 (+B)

20°C (68°F)

11 to 16 Ω

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

(c) Connect the 2 heated oxygen sensor connectors.