420SEL (126.035) V8-4.2L (116.965) (1986)
Engine Control Module: Pinout Values and Diagnostic Parameters
Voltage Measurements
For ECM connector view and legend refer to "Engine Control Module : Diagrams : Connector Views. See: Diagrams/Connector Views
1. If Air Flow Sensor plate is deflected the voltage will increase towards 5 volts.
2. Always check battery voltage and connections.
Grounds
Main Relay Supply
Reference Supply
Coolant Temperature Sensor
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California version uses terminal 7 as of MY 1988 and later when measuring coolant sensor.
Altitude Sensor
Electro-hydraulic Actuator