C/S Engine Temp High Warning Lamp IDS Test P0A01:81-28 Motor Electronic Coolant Temp Sensor Circuit Range, Performance Removed lower engine splash shield, checked connector, found wires broke. Replaced sensor and connector, refilled coolant cleared codes. Verified repairs. 3F1Z-12A648-A Sender Asy 3U2Z-14S411-HYB Wire Asy VC-10-A2 Antifreeze Parts $101.69 Labor $247 Seems to be working now!