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 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

Computers and Control Systems: Tools and Equipment

Testers and Tools Required for Testing DME (Digital Motor Electronics):

1 oscilloscope, e. g. SUN or Bosch
1 volt and ohmmeter (internal resistance at least 20 k/ohm / V)
1 test lead (Bosch "L-Jetronic Test Lead", No.1684 463 093)
2 control unit plug test leads, approx. 600 mm long, fitted with two 4 mm brush plugs and two insulated alligator clips, as well as two flat male plugs N 17.457.2
2 adapter test leads, approx. 200 mm long, fitted with four plug connectors N 0 17.483.1

Always use test leads for tests!