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2007 Chevrolet Trailblazer LS 4.2L MIL Lamp on
Posted to GM Driveability on 8/12/2009 9 Replies

Has anyone seen this code before? Mitchell's discription isn't very clear and there isn't a good test procedure. I have checked for PCM updates related to this code and there aren't any. Any help would be appriciated.

9 Replies Received (View Replies)

  Related Documents & Media  2007 Chevrolet Trailblazer LS

 
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Trailblazer LS

VIN 1GNDS13S97
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P1400Manifold Differential Pressure Sensor Circuit Malfunction
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Trailblazer LS

VIN 1GNDS13S97
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P1400Manifold Differential Pressure Sensor Circuit Malfunction