Connect Obd Ii scan tool or Toyota handheld tester and read value of engine coolant temperature

PREPARATION:

(a) Connect the OBD II scan tool or TOYOTA hand-held tester to the DLC3.

(b) Turn the ignition switch ON and push the OBD II scan tool or TOYOTA hand-held tester main switch ON.

CHECK:

Read temperature value on the OBD II scan tool or TOYOTA hand-held tester. OK:

Same as actual engine coolant temperature

HINT:

• If there is open circuit, OBD II scan tool or TOYOTA hand-held tester indicates -40°C (-40°F).

• If there is open circuit, OBD II scan tool or TOYOTA hand-held tester indicates 140°C (284°F) or more.

-40°C (-40°F) ... Go to step 2. 140°C (284°F) or more ... Go to step 4.

Check for intermittent problems (See page DI-3).

Jinma 284 Ignition Switch Wiring

PREPARATION:

(a) Disconnect the engine coolant temp. sensor connector.

(b) Connect the sensor wire harness terminals together.

(c) Turn the ignition switch ON. CHECK:

Read temperature value on the OBD II scan tool or TOYOTA

hand-held tester.

Temperature value: 140°C (284°F) or more

Confirm good connection at sensor. If OK, replace engine coolant temp. sensor.

Engine Coolant Temp. Sensor

BE6653 A00370 A13622

BE6653 A00370 A13622

A13623

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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  • Eric
    How to connect the check engine checker to a toyota prius?
    5 years ago

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