Toyota Tundra Service Manual: 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 (68°F)

11 to 16 Ω

1 (HT2B) - 2 (+B)

(for Bank 2)

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

Toyota Tundra Service Manual > Vehicle Stability Control System: Steering Angle Sensor Initialization Incomplete (C1439,C1445)
DESCRIPTION When the vehicle is being driven in a straight line at 12.8 km/h (8 mph) for 1 second or more, the skid control ECU (brake actuator assembly) calculates the steering angle sensor zero point and updates the zero point if the difference between the calculated zero point and current zero po ...

Toyota Tundra Owners Manual