DTC P2182-15: Engine Coolant Temperature Sensor 2 Circuit Short to Battery or Open [11/2021 - ]: Procedure

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READ VALUE USING GTS (CHECK FOR OPEN IN WIRE HARNESS)

Disconnect the engine coolant temperature sensor (for cylinder head side) connector.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	Engine Coolant Temperature Sensor (for Cylinder Head Side)	*2	ECM
*a	Front view of wire harness connector (to Engine Coolant Temperature Sensor (for Cylinder Head Side))	-	-

Connect terminals 1 (E2) and 2 (THW2) of the engine coolant temperature sensor (for cylinder head side) connector on the wire harness side.

According to the display on the GTS, read the Data List.

Powertrain > Engine > Data List

Tester Display
Coolant Temperature Sensor2

GTS Display	Specified Condition
Coolant Temperature Sensor2	140°C (284°F) or higher

HINT:

Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (for cylinder head side).

Refer to INITIALIZATION [11/2021 - ]

Result

Proceed to
OK
NG

Result:

REPLACE ENGINE COOLANT TEMPERATURE SENSOR (FOR CYLINDER HEAD SIDE). Refer to REMOVAL [11/2021 - ]

Result:

See step 2

CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR (FOR CYLINDER HEAD SIDE) - ECM)

Disconnect the engine coolant temperature sensor (for cylinder head side) connector.
Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
V5-2 (THW2) - B49-79 (THW2)	Always	Below 1 Ω
V5-1 (E2) - B49-81 (ETHW)	Always	Below 1 Ω
V5-2 (THW2) or B49-79 (THW2) - Other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result:

REPLACE ECM. Refer to REMOVAL [11/2021 - ]

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR