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P0710-TRANSMISSION TEMPERATURE SENSOR CIRCUIT (CONTINUED) 3. CHECK IF ENGINE STARTS IN PART OR NEUTRAL Attempt to start the engine in Park or Neutral. Does the engine start in either Park or Neutral? Yes >> Go To 4 No >> Go To 5 4. TRANSMISSION TEMPERATURE SENSOR-P/N SWITCH Turn the ignition off to the lock position. Disconnect the TCM C2 harness connector. Place the gear selector in Drive. Measure the resistance of the Transmission Temperature Sensor Is the resistance between 500 to 2500 ohms? Yes >> Using the schematics as a guide, check the Transmission Control Module (TCM) pins, terminals, and connectors for Perform NAG1 TRANSMISSION VERIFICATION TEST - No >> Using the schematics as a guide, check the Electrohydraulic Control Unit Assembly and Transmission Temperature Sensor-P/N Switch pins and connector terminals for corrosion, damage, or terminal push Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. 5. CHECK THE TRANSMISSION TEMPERATURE SENSOR-P/N SWITCH Turn the ignition off to the lock position. Reconnect the TCM C2 harness connector. Disconnect the Electrohydraulic Control Unit Assembly harness connector. NOTE: This procedure may set various DTCs to multiple modules connected to the CAN bus. Disregard and Does the engine start? Yes >> Replace the Transmission Temperature Sensor-P/N Switch. Refer to 21- AUTOMATIC TRANSMISSION- AUTOMATIC TRANSMISSION NAG1/SERVICE INFORMATION for the proper service procedure. Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 6 21 - 490 AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS WK |