Ground Circuits
Using a DVOM, touch negative voltmeter lead to a good ground. Touch positive voltmeter lead to each ground terminal. With vehicle running, voltmeter should indicate less than one volt. If reading is greater than one volt, check for open, corrosion and loose connection on ground lead. See ECM GROUND LOCATION table for ECM ground location.
ECM GROUND LOCATION
| Application | Location | |
|---|---|---|
| Amigo & Pickup | Left Front Corner Of Engine | |
| Rodeo | ||
| 2.6L | Right Side Of Engine, On Intake Manifold | |
| 3.1L | Below Alternator | |
| Trooper | Rear Of Engine In Front Of DIS Coil Pack | |