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q A CHECK INPUT SIGNAL OF A/T FLUID 1. Start engine. 2. Select “ECU INPUT SIGNALS” in Data Monitor. 3. Read out the value of “FLUID TEMP SE”. → Hot [80°C (176°F)]: Approximately → 0.5V ----------------------------------------------------------------------------------------------------------------------- OR ----------------------------------------------------------------------------------------------------------------------- 1. Start engine. 2. Check voltage between TCM ter- minal q 47 and ground while warm- ing up A/T. → Hot [80°C (176°F)]: Approximately → 0.5V OK E NG Check the following item: I Harness for short or Perform “SELF-DIAGNOSIS CODE CON- OK E NG 1. Perform TCM input/ output signal inspection. 2. If NG, recheck TCM pin terminals for damage or INSPECTION END COMPONENT INSPECTION A/T fluid temperature sensor I For removal, refer to AT-118. I Check resistance between terminals q 6 and q 7 while chang- ing temperature as shown at left. Temperature °C (°F) Resistance 20 (68) Approximately 2.5 k Ω 80 (176) Approximately 0.3 k Ω YAT419 YAT319 H H H TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP SEN A/T Fluid Temperature Sensor and TCM Power AT-80 |