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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Engine Control Module: Tools and Equipment

Make sure the following equipment is available:

- DRBII
- Digital Volt/Ohmmeter
- Jumper wires
- Auxiliary vacuum supply hose
- Vacuum gauge
- Volt-Amp-Load Tester

For 1990, Chrysler Corporation has made available to its dealer technicians, a second generation, Chrysler designed diagnostic readout box. The DRB II, as it is called, must be used to gain access to the On-Board Diagnostics that are found on all Chrysler built cars and trucks.