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1987 Cadillac DeVille 4.1L MIL Lamp on, Cooling fans run
Posted to GM Driveability on 11/3/2011 8 Replies

Check engine soon light comes on intermittently. When this happens, the cooling fans will run and the scanner will not communicate with ECM or the BCM as long as the light is on. Cycling the ignition key off then back on restores the communication and turns of...

8 Replies Received (View Replies)

  Related Documents & Media  1987 Cadillac DeVille

 
Message Closed w/Summary

car Vehicle Data

1987 Cadillac DeVille

VIN 1G6CD5187H
Engine4.1 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection
SymptomsMIL Lamp on, Cooling Fans Run
OccursIntermittently

Trouble Codes

F32Loss of communication between ECM and BCM
Message Closed w/Summary

car Vehicle Data

1987 Cadillac DeVille

VIN 1G6CD5187H
Engine4.1 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection
SymptomsMIL Lamp on, Cooling Fans Run
OccursIntermittently

Trouble Codes

F32Loss of communication between ECM and BCM