FixVault
Home
›
GMC
›
1998
›
Forward Control 7.4 J
›
Repair and Diagnosis (Single Page)
›
Engine Performance
›
System
›
Engine Controls - Tests W/Codes - 7.4L
›
Self-Diagnostic System
›
Reading Trouble Codes
Reading Trouble Codes
NOTE:
Use of Tech 1 or 2 scan tool is required to retrieve DTCs. Refer to user reference manual supplied with scan tool.