1994 PCED OBDI-A
SECTION 18A: Diesel Diagnosis — 7.3L DI Engine

AJ: PCM Inactive Background Fault

 

AJ1 DTC 523 INACTIVE BACKGROUND FAULT

Is DTC 523 still present after all other codes have been serviced?
YesNo
REPLACE PCM.System OK. RERUN Scan Tool Diagnostic Test to see if there are any other stored codes.