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1982 Cadillac DeVille 4.1L MIL Lamp on
Posted to GM Driveability on 4/22/2003 3 Replies

First two miuntes on cold start up, MIL Light comes on with code 30. We have replaced ISC Motor (twice), ECM, Coolant Temp Sensor, Air Charge Temp Sensor, TPS sensor and checked and relocated all engine grounds. The vehicle runs great all the time even when th...

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car Vehicle Data

1982 Cadillac DeVille

VIN 1G6AD4788C
Engine4.1 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp On
OccursAlways, Cold

Trouble Codes

30isc circuit fault
Message Closed

car Vehicle Data

1982 Cadillac DeVille

VIN 1G6AD4788C
Engine4.1 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp On
OccursAlways, Cold

Trouble Codes

30isc circuit fault