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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.