Ohms Measurements

25 Position ECU Plug:

For Terminal ID refer to "Powertrain Management : Computers and Control Systems : Engine Control Module : Diagrams". Connector Views

CAUTION: WHEN MEASURING OHMS DISCONNECT THE ECU FROM THE HARNESS PLUG AND NEVER TURN THE IGNITION KEY ON. IT IS P0SSIBLE THAT FAILURE TO FOLLOW THESE STEPS WILL RESULT IN DAMAGE TO THE ECU.




Grounds




Magnetic Coil Sensors




Coolant Temperature Sensor




Throttle Switch




Throttle Position Sensor




Electro-Hydraulic Actuator




Air Flow Sensor
1 Flap on air flow sensor closed or air flow sensor plate at rest position. Resistance increases as flap or plate opens.
2 Flap on air flow sensor opened to maximum or air flow plate deflected to maximum.




Carbon Canister Freq. Valve




Cold Start Injector




ISC Valve