INSPECTION PROCEDURE 1. INSPECT WATER INLET SUB-ASSEMBLY WITH THERMOSTAT  HINT: The valve opening temperature is stamped on the water inlet with thermostat.
(b) Check the valve opening temperature. Standard valve opening temperature: 80 to 84°C (176 to 183°F) If the valve opening temperature is not within the specified range, replace the water inlet sub-assembly with thermostat.
(d) Check that the valve is fully closed when the water inlet with thermostat is at a low temperature (below 77°C (171°F)). If it is not fully closed, replace the water inlet sub-assembly with thermostat. |
Toyota Tundra Service Manual > Automatic Transmission System: Shift Solenoid "A" Control Circuit Low (Shift Solenoid Valve S1) (P0973,P0974)
DESCRIPTION Shifting from 1st to 6th is performed in combination with ON and OFF operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR, which are controlled by the ECM. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shif ...
