Toyota Tundra Service Manual: On-vehicle Inspection

Toyota Tundra Service Manual / Engine, Hybrid System / 1ur-fe Engine Control / Air Fuel Ratio Sensor / 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

for Bank 1

for Bank 2

Component without harness connected

(Air Fuel Ratio Sensor)

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

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Toyota Tundra Service Manual > Can Communication System: Open in Bus 3 Main Bus Line
DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 6 (CA3H) and 21 (CA3L) or 19 (CAYH) and 20 (CAYL) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. Symptom Trouble Area Resistance between terminals 6 (CA3H) and 21 (CA ...

Toyota Tundra Service Manual: On-vehicle Inspection

Installation

Removal

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