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

QB - KOEO and/or Continuous Memory Code 15

Enter this Pinpoint Test only when you have been directed here from Quick Test.

This Pinpoint Test is only intended to diagnose the following:

1. ECA computer processor.
2. Harness circuit: PWR GND, VPWR, KAPWR, IGNITION.


PINPOINT TEST QB SCHEMATIC

Pinpoint Test QB Schematic:






TEST STEPS QB1 - QB3

Test Steps QB1 - QB3: