ML8 - Check MIL Circuit Continuity

- Key "OFF".

- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.

- Install breakout box, leave PCM disconnected.

- Measure resistance between test pin 17 at breakout box and Malfunction Indicator Light (MIL).

- Is resistance less than 5.0 ohms?

Yes -- Replace PCM. Remove breakout box. Verify the service by turning ignition key to the "Run" position.

No -- Service open in ground side of MIL circuit. Remove breakout box. Reconnect PCM. Verify service by turning ignition key to "Run" position.