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:
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 > Lighting System: Lost Communication With Image Processing Module "A" (U023A)
DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning. DTC No. Detection Item DTC Detection Condition Trouble Area U023A Lost Communication With Image Processing Module "A" The main body ECU (multiplex network body ECU) does not receive data from the forward ...
