Ground Circuits
WARNING: This page is about a different car, the 1991 Mitsubishi 3000GT and 1991 Dodge Stealth. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Using an ohmmeter, check for continuity between ground and ECU terminals No. 26 and 13. ECU is located forward of center console near floor. Resistance should be zero ohms. If resistance is not zero ohms, repair open circuit between ECU connector and ground.
- Connect voltmeter negative lead to ground. Connect positive lead to ECU ground terminals as in step 1). With vehicle running, voltmeter should indicate less than one volt. If voltmeter reading is greater than one volt, check for open, corrosion or loose connection in ground circuit.