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
Vehicle Speed Signal
DescriptionThe vehicle speed signal is transmitted from the ABS control unit to the ECM, via the CAN bus. The ECM has input diagnostics for this signal; a fault is detected if the engine speed greater than
2080 rpm, the engine load is greater than
0.65 g/rev and no input signal is detected.
