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
Voltage Signal: Testing and Inspection
Check for proper voltage at
engine control module (ECM) input terminal
1J.
Refer to ECM Pin Tests.
Voltage with E/L load OFF:--Battery Voltage
Voltage with E/L load ON:--Below 1.5 Volts