Test Aa - Code 12 Electronic Controller
WARNING: This page is about a different car, the 1987 Lincoln Mark VII, 1987 Lincoln Continental, 1987 Ford Thunderbird, 1986 Lincoln Mark VII, and 1986 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.
If a service code 12 is displayed, replace electronic controller. There is no Self-Test to perform for a service code 12.
ON-BOARD SELF-TEST CODES
| Code | Component |
|---|---|
| 11 | Electronic Controller |
| 12 | Electronic Controller |
| 21 | Main Valve |
| 22 | Left Front Inlet Valve |
| 23 | Left Front Outlet Valve |
| 24 | Right Front Inlet Valve |
| 25 | Right Front Outlet Valve |
| 26 | Rear Inlet Valve |
| 27 | Rear Outlet Valve & Ground |
| 31 | Left Front Sensor |
| 32 | Right Front Sensor |
| 33 | Flight Rear Sensor |
| 34 | Left Rear Sensor |
| 35 | Left Front Sensor |
| 36 | Right Front Sensor |
| 37 | Right Rear Sensor |
| 38 | Left Rear Sensor |
| 41 | Left Front Sensor |
| 42 | Right Front Sensor |
| 43 | Right Rear Sensor |
| 44 | Left Rear Sensor |
| 51 | Left Front Outlet Valve |
| 52 | Right Front Outlet Valve |
| 53 | Rear Outlet Valve |
| 54 | Rear Outlet Valve |
| 55 | Left Front Sensor |
| 56 | Right Front Sensor |
| 57 | Right Rear Sensor |
| 58 | Left Rear Sensor |
| 61 | Fluid Level Indicator & Pressure Warning Switch Circuit |
| 71 | Left Front Sensor |
| 72 | Right Front Sensor |
| 73 | Right Rear Sensor |
| 74 | Left Rear Sensor |
| 75 | Left Front Sensor |
| 76 | Right Front Sensor |
| 77 | Right Rear Sensor |
| 78 | Left Rear Sensor |
| 99 | Electronic Controller |