Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Repair Procedure

1. Select the correct procedure for your diagnostic tool and vehicle model:

- WDS 2001 & Later Truck 4WABS Module Replacement

- WDS 2001 & Later Truck PCM Module Configuration (Programmable Parameters)

- WDS 1998-2000 Truck GEM Module Programming

- WDS 1998-2000 Truck 4WABS Module Replacement & Programmable Parameter Programming

- NGS (Ver. 9.0 card) 2001 Truck PCM Programmable Module Configuration (Programmable Parameters)

- NGS (Ver. 9.0 card) 1998-2000 Truck 4WABS Module Replacement / GEM (Module Replacement)