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 > Sfi System: Secondary Air Injection System Control "A" Circuit (P0418,P0419)
DESCRIPTION Refer to DTC P0412 (See page ). DTC No. DTC Detection Condition Trouble Area P0418 P0419 After cold engine start, all of following conditions met (2 trip detection logic): Secondary Air Injection (AIR) system not operating (air pump OFF, Air Switching Valve [ASV] OFF) Diagnostic signal f ...
