Wiring Diagram

Intake Air Temperature Sensor (Built into Mass Air Flow Meter)

5 BR

29 5

VW1-

777"

HINT:

• If other DTCs relating to different systems that have terminal E2 as the ground terminal are output simultaneously, terminal E2 may have an open circuit.

• Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

READ DATA LIST (INTAKE AIR TEMPERATURE)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON and turn the intelligent tester ON.

Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / INTAKE AIR.

Read the values displayed on the tester. Standard:

Same value as actual IAT. Result

Temperature Displayed

Proceed to

-40°C (-40°F)

A

140°C (284°F)

B

Same as actual IAT

If there is an open circuit, the intelligent tester indicates -40°C (-40°F).

If there is a short circuit, the intelligent tester indicates 140°C (284°F).

Go to step 4

CHECK FOR INTERMITTENT PROBLEMS

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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