Test TC-164A - Trans Temp Sensor No Rise After Start

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY. For component location see wiring diagram in the WIRING DIAGRAMS article.

NOTE: To test Transmission Temperature (TRANS TEMP) sensor, engine and TRANS TEMP must be less than 85°F (29.4°C).

Using scan tool, read DTCs. If P/N SWITCH, TRANS TEMP SENSOR VOLTAGE TOO LOW or TRANS TEMP SENSOR VOLTAGE TOO HIGH DTC is present, repair these DTCs before proceeding. If neither of these DTCs are present, go to next step.
Using scan tool, read and record Engine Coolant Temperature (ECT) sensor temperature, and TRANS TEMP sensor temperature. If TRANS TEMP is within 9 degrees of ECT temperature, go to step 5). If TRANS TEMP is not within 9 degrees of ECT temperature, go to next step.
Start engine and let it idle in gear, with brake on. Monitor TRANS TEMP sensor. If TRANS TEMP does not increase steadily 15°F over a 10 minute period, go to step 5). If TRANS TEMP increases steadily 15°F over a 10 minute period, TRANS TEMP sensor is functioning properly at this time. Go to next step.
Inspect all related wiring and connectors. Repair wiring and connectors as necessary and perform TEST VER-1A. If wiring and connectors are okay, see INACTIVE DTC CONDITION. Test is complete. Perform TEST VER-2A.
Disconnect TRANS solenoid 8-pin connector. Inspect connector and terminals for damage. Repair connector and terminals as necessary and perform TEST VER-2A. If connector and terminals are okay, replace TRANS TEMP/governor pressure sensor and perform TEST VER-2A.