Toyota Tundra Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT AIR FUEL RATIO SENSOR

(a) Disconnect the 2 air fuel ratio sensor connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (HA1A) - 2 (+B)

(for Bank 1)

20°C (68°F)

1.6 to 3.2 Ω

1 (HA2A) - 2 (+B)

(for Bank 2)

Text in Illustration

*A

for Bank 1

*B

for Bank 2

*a

Component without harness connected

(Air Fuel Ratio Sensor)

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

(c) Connect the 2 air fuel ratio sensor connectors.

    Installation

    Removal

    See More:

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    SYSTEM DIAGRAM 1. SECONDARY AIR INJECTION CONTROL SYSTEM DIAGRAM 2. SECONDARY AIR INJECTION SYSTEM WIRING DIAGRAM 3. EGR CONTROL SYSTEM DIAGRAM 4. EGR CONTROL SYSTEM WIRING DIAGRAM 5. EVAP CONTROL SYSTEM DIAGRAM Text in Illustration *1 Fuel Tank Cap *2 Fuel Tank *3 Fuel Cutoff Valve *4 Vent Line *5 ...

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