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Derrick
Derrick, ASE Certified Technician
Category: Car
Satisfied Customers: 923
Experience:  A.S.-Automotive Analysis A6-Electrical A8/L1-Engine Performance Cert., CA Chrysler/Jeep/Dodge Tech
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I HAVE TROUBLE CODE P0113 IAT SENSOR 1 CIRCUIT HIGH INPUT ...

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I HAVE TROUBLE CODE P0113 IAT SENSOR 1 CIRCUIT HIGH INPUT FOR A JEEP GRAND CHEROKEE 1999 4.0 INLINE V6? WHAT IS IT AND HOW CAN I FIX IT? THANKS!

Hi there,

If the code says circuit high, it is reading 5Volts, which means that the circuit is open(or disconnected).

I would check your connector to your IAT sensor and make sure it is plugged in. Then I would inspect your harness for any damage. If it is all ok, I would replace your IAT sensor.

I hope this helps, let me know if you have any more questions!

Derrick and 9 other Car Specialists are ready to help you
Customer: replied 8 years ago.
Derrick Where can I find the IAT Sensor Plug / Harness?

Here it is:

I hope this helps, feel free to ask if you need anything else!

Customer: replied 8 years ago.
Thank you! You are spot on the money!
Sincerely,
Rees
You are very welcome, I am glad I could help you!