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DTC 22 - Engine Coolant Temperature Sensor Signal

NOTE: Coolant temperature sensor is also referred to Engine Coolant Temperature (ECT) sensor.
Fig 1: DTC 22 - Schematic
G93J79425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: DTC 22 - Diagnostic Flowchart
G93A79426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002