In-Vehicle Sensor (Auto A/C Model): Inspection

WARNING: This page is about a different variant/trim than selected.

Set the vehicle to the following conditions.

Item	Condition
Ignition switch	ON
A/C switch	ON
Temperature adjustment dial	HI (MAX HOT)
Air flow control dial or switch	DEF
Fan dial	HI (MAX)

Check the suction port (a) for in-vehicle sensor of the cover assembly - instrument panel LWR driver.

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1. Put a strip of paper close to the front side of the suction port (a).
2. Can you see the paper moving towards the port and the air being sucked into the port?
  CAUTION: Be careful not to let the paper get sucked into the port.
  - Yes → Go to step 5.
  - No →Go to step 3.
Remove the cover assembly - instrument panel LWR driver, and check the aspirator hose (a).

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1. Are the in-vehicle sensor and aspirator hose connected securely?
2. Is the aspirator hose free from any kinks or cracks?
  - Yes → Go to step 4.
  - No →Repair or replace the aspirator hose if necessary.
Check if there is anything that affects sensing, around the in-vehicle sensor.
1. Is the in-vehicle sensor hole free from clogging?
2. Is the peripheral area of in-vehicle sensor free from any heat-producing parts?
  - Yes → Go to step 5.
  - No →Remove everything that affects sensing.

5 . Check in-vehicle sensor.

Measure the resistance between connector terminals.

CAUTION: During inspection, be careful not to touch the sensor end in order to avoid misjudgment due to body temperature.

Preparation tool:

Circuit tester

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Is the resistance within the standard?
- Yes → The in-vehicle sensor is normal.
- No →Replace the in-vehicle sensor.