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
Checking Upshift/Downshift Signals
NOTES: -
The Engine Control Module (ECM) uses this signal in connection with the shift signal to determine whether the current signal is an upshift or downshift.
-
The signal for upshift and downshift is monitored by the Transmission Control Module (TCM),
Control ModuleChecking requirement -
Control module coding OK,
Computers and Control Systems.