REMOVAL PROCEDURE 1. DISCONNECT NO. 2 AIR HOSE
(b) Slide the clamp and disconnect the No. 2 air hose. 2. REMOVE AIR SWITCHING VALVE ASSEMBLY
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Toyota Tundra Service Manual > Heated Oxygen Sensor: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. CHECK HEATED OXYGEN SENSOR (a) Disconnect the heated oxygen sensor connector. (b) Measure the heater resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 (HT1B) - 2 (+B) (for Bank 1) 20°C ( ...