Caterpillar EGR Fault Codes

CAT fault code SPN2713 should be treated as an EGR system code that requires the exact FMI for a complete diagnosis.

CAT fault code SPN277 is listed under EGR and should be expanded only after confirming the FMI and Cat ET description.

CAT fault code SPN4110 is best normalized as SPN 411 FMI 0 when entered as a combined code.

CAT fault code SPN4112 is best read as SPN 411 FMI 2.

CAT fault code SPN4115 is best interpreted as SPN 411 FMI 5.

CAT fault code SPN4117 is best normalized as SPN 411 FMI 7.

CAT fault code SPN41216 is best normalized as SPN 412 FMI 16.

CAT fault code SPN4123 is best interpreted as SPN 412 FMI 3.

CAT fault code SPN4124 is best normalized as SPN 412 FMI 4.