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
Powertrain Management: Service Precautions
1.
Disconnect battery ground cable prior to service or replacement of electronic engine controls.
2.
Follow diagnostic procedures as presented.
3.
Disconnect electronic engine controls from wire harness before measuring for continuity, resistance or energizing with a
12-volt source.
4.
Never measure voltage or resistance directly at the
Powertrain Control Module (PCM).