LINES GP-FUEL 3728400 - Caterpillar

Which Generate This Code:The Electronic Control Module (ECM) detects all of the following conditions:
The engine is not cranking.
Battery voltage is greater than 19 VDC for the last five seconds.
Communication stops for 0.4 seconds after successful communication has been established with the machine ECM.System Response:The ECM will log the diagnostic code. The diagnostic code may be viewed on a display module or on the Caterpillar Electronic Technician (Cat ET). The check engine lamp will illuminate. All features that depend on the Cat Data Link will be disabled.
NoneTest Step 1. Perform the following test: CAT Data Link Circuit - TestResults:
OK - Stop.