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

Test Z: Keep Alive Power (KAPWR)



PINPOINT TEST Z: KEEP ALIVE POWER (KAPWR)

This pinpoint test is intended to diagnose the following:

^ battery cables loose or intermittent connections

^ harness circuit: KAPWR

^ powertrain control module (PCM)





Z1 - Z2:





Z3 - Z5:





Z6 - Z7: