1994 PCED OBDI-A
SECTION 18A: Diesel Diagnosis — 7.3L DI Engine
AG: PCM-ROM Failure
AG1 DTC 511 PCM ROM FAILURE
DTC 511 exists only when there has been an internal failure of the PCM.
Rerun Scan Tool Diagnostic Test.
Is DTC 511 retrieved?
Yes
No
REPLACE PCM.
System OK. RERUN Scan Tool Diagnostic Test to see if there are any other stored codes.