Engine Control Module

ECM Terminal Voltage Charts (Reference)

ECM Pin Terminal Layout:

Pin Terminals 1A Through 1N:

Pin Terminals 1O Through 3A:

Pin Terminals 3B Through 3P:

Pin Terminals 4A Through 4T:

Pin Terminals 4U Through 4Z:

Remarks:
B+ Battery positive voltage
* When all following conditions are satisfied
- Fan switch ON at 2nd or higher
- rear window defroster switch ON
- headlights ON