B1253 - Air Temperature Internal Sensor Circuit Short To Ground

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

Possible causes

  • Faulty Air Temperature Internal Sensor
  • Air Temperature Internal Sensor harness is open or shorted
  • Air Temperature Internal Sensor circuit poor electrical connection
  • Faulty Electronic Automatic Temperature Control (EATC) Module

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1253 Description

The Electronic Automatic Temperature Control (EATC) Module monitors the Air Temperature Internal Sensor. The EATC sets the OBDII code when the Air Temperature Internal Sensor is not to factory specifications.
OBDII Code B1253 - Air Temperature Internal Sensor Circuit Short To Ground - AutoCodes.com

B1253 Information for specific makes

  • B1253 FORD Air Temperature Internal Sensor Circuit Short To Ground
  • B1253 LINCOLN Air Temperature Internal Sensor Circuit Short To Ground
  • B1253 MERCURY Air Temperature Internal Sensor Circuit Short To Ground

Need more help?

Get the B1253 code diagnosed by a professional: Find a repair shop in your area

Related Information

B1253 Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the B1253 code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧