Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR

(a) Partially immerse the sensor in water and warm up the water.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 - 2	Approx. 20°C (68°F)	2.32 k to 2.59 kΩ
1 - 2	Approx. 80°C (176°F)	0.310 k to 0.326 kΩ

If the result is not as specified, replace the engine coolant temperature sensor.

NOTICE:

When checking the sensor in water, keep the terminals dry. After the check, wipe the sensor dry.

HINT:

If the result is as specified, do not replace the engine coolant temperature sensor.

Toyota Tundra Service Manual > Air Conditioning System(for Manual Air Conditioning System): Pressure Sensor Circuit (B1423/23)
DESCRIPTION This DTC is output when refrigerant pressure is extremely low (196 kPa (2.0 kgf/cm2, 28 psi) or less) or extremely high (3140 kPa (32.0 kgf/cm2, 455 psi) or more). The pressure switch, which is installed on the pipe of the high pressure side to detect refrigerant pressure, outputs a refr ...

Toyota Tundra Owners Manual