Toyota 88790-60050 Thermo Switch Assy

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If the coolant temperature gauge is inoperative, check the fuses first. If the temperature gauge indicates excessive temperature after running awhile, check the Troubleshooting section in the front of the manual. If the temperature gauge indicates HOT as soon as the engine is started cold, disconnect the wire at the coolant temperature sender. If the gauge reading drops, replace the sending unit. If the reading remains high, the wire to the gauge may be shorted to ground or the gauge is faulty. Note: The coolant temperature sending unit on the 3F-E engines is located near the thermostat housing. If the coolant temperature gauge fails to show any indication after the engine has been warmed up, (approximately 10 minutes) and the fuses checked out OK, shut off the engine. Disconnect the wire at the sending unit and, using a jumper wire, connect the wire to a clean ground on the engine. Briefly turn on the ignition without starting the engine. If the gauge now indicates Hot, replace the sending unit. If the gauge fails to respond, the circuit may be open or the gauge may be faulty. Drain the coolant. Disconnect the wiring connector from the sending unit. Using a deep socket or a wrench, remove the sending unit. Install the new unit and tighten it securely. Do not use thread sealant as it may electrically insulate the sending unit. Reconnect the wiring connector, refill the cooling system and check for coolant leakage and proper gauge function.

It appears to be the same switch.