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

Equipment Required to Test Digital Motor Electronics (DME and KLR):

1 oscilloscope, e. g. SUN or Bosch
1 volt/ohmmeter (internal resistance at least 20 k-ohms/V)
1 test lead (Bosch "L-Jetronic Lead" No.1684 463 093)
2 control unit plug test leads, approx. 600 mm long, with
2 bunch plugs 4 mm and 2 insulated alligator clips, as well as 2 flat male plugs N 17.457.2.
2 adapter test leads, approx. 200 mm long, with
4 plug connectors N 017.483.1
1 testing relay with LED (P 9246)

Always use the test leads for tests!