Decode Your SPN Fault Code Now

What Does SPN Mean?

SPN refers to Suspect Parameter Numbers.

There are diagnostic fault codes referring to specific components or system circuits.

Clue tracks over 3,500 different SPN codes, used by Caterpillar equipment.

Clue ensures that your operators, mechanics, and equipment managers receive all fault codes translated into straightforward English (or Spanish).

By decoding SPN codes for you, Clue streamlines the entire process

To obtain the complete list of codes, just fill out the form below. We're here to help!

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Complete SPN Fault Codes Table