Circuit Test Aa - Electronic Control Module (ECM) Diagnosis
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 1992 Mercury Cougar, 1992 Lincoln Mark VII, 1992 Ford Thunderbird, 1991 Mercury Cougar, and 1991 Lincoln Mark VII. However, it is still accessible from the selected car via links, so may be relevant.
- Code 11 And/Or 88 Or 89: Electrical Disturbance Check Record all trouble codes. Drive vehicle above 25 MPH to clear memory. Recheck for trouble codes. If Codes 11 and/or 88 or 89 set again, replace ECM. If no trouble codes are indicated or any other code appears, service appropriate code.
- Code 12: ECM Failure If trouble Code 12 appears, replace ECM.