1994 PCED OBDI-A
SECTION 18A: Diesel Diagnosis — 7.3L DI Engine
AF: No DTC Codes Retrieved
 

AF1 REFERENCE WIRE VOLTAGE LOW

Is there 5 volts at STI wire?
YesNo
REPLACE PCM. RERUN Scan Tool Diagnostic Test.GO to Pinpoint Test B. After performing Test B, GO to AF2.
 

AF2 VEHICLE BATTERY TEST

Does vehicle battery prove out?
YesNo
System OK. RERUN Scan Tool Diagnostic Test. CHECKING all connections to Star Tester. GO to AF3.PERFORM repairs as outlined in Pinpoint Test B. RETEST system. GO to AF3.
 

AF3 DTC CODE RETRIEVAL RETEST

Are any codes retrieved?
YesNo
System OK. Test complete.REPLACE PCM. RETEST system.