Test A: Step 5

5) Check Ignition Circuit Ground Continuity  Turn key off and wait 10 seconds. Disconnect and inspect ECA 60-pin connector. Install breakout box, leaving ECA disconnected. Set DVOM on 200-ohm scale and disconnect TFI module or DIS module (pins No. 7-12). Disconnect Hall sensor on 7.5L Truck. Measure resistance between test pin No. 16 at the breakout box and TFI, Hall Sensor, or DIS harness connector IGN GND circuit. If reading is more than 5 ohms, repair open in circuit and repeat QUICK TEST. If reading is less than 5 ohms, go to next step.