Pin Voltage Specifications
NOTE:
Pin voltage chart is not available from manufacturer. ECM pin terminal identification is given for reference.
The following conditions must be present before testing pin voltages.
- Engine At Normal Operating Temperature.
- Engine Idling In Closed Loop (ENG. RUN Column).
- ALDL Test Terminal Not Grounded.
- Scan Tool Not Installed.
- All B+ Voltages Indicate Charging Or Battery Voltage.
- All "0" voltages are ground circuits (should read less than 0.50 volt).