keeslerwaterwalk
New Member
- Joined
- May 9, 2012
- Messages
- 1
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- Year, Model & Trim Level
- 2005 Mercury Mountaineer
I had a dead battery which had to be jumped. Afterwards, the AdvanceTrac light is stuck on with codes C1998 and C1991…Module Calibration Failure. ABS light is not on. I checked for fuses and can’t find any bad. The only reference I can find to a relay is in the Canadian models. That slot is not used in the US version. Any ideas or do I have no choice but the dealer for my 2005 Mountaineer? I have a BlueDriver scan tool for diagnostics.
