Question about 1998 Lincoln Mark VIII
Some coffee was spilled onto/into steering column and after it dried I now get a "code" after starting and running the car ----
The code is 5 blinks - pause- 1 blink - long pause - and then 5-1 again, and again.
I want to re-set the SRS system and reset the code, so that it only lights when the car is started and the system is functional.
No more coffee - promise.
Here is the information on code 51.
LFC 51 — Air Bag Diagnostic Monitor Internal Thermal Fuse — Fuse Open Due to Intermittent Short to Ground
WARNING: Do not install a new air bag diagnostic monitor until the short has been located and corrected. If a short to ground has not been located and corrected, then the short to ground is intermittent and is not present at this time. Installing a new diagnostic monitor with an intermittent short in the system will result in repeat damaged diagnostic monitors and repeat repair.
NOTE: The air bag diagnostic monitor (14B056) contains an internal thermal fuse that is not repairable. The thermal fuse is controlled by the microprocessor inside the air bag diagnostic monitor . The microprocessor inside the air bag diagnostic monitor will open the thermal fuse whenever a short on the deployment circuits occurs. The thermal fuse does not open because of excessive current flowing through it. DO NOT attempt to short circuit the thermal fuse with a circuit breaker or any other type of fuse.
The air bag diagnostic monitor measures the voltages at the air bag diagnostic monitor connector pins. When certain air bag deployment wires are shorted to ground, the system may become susceptible to unwanted deployment of the air bag(s). The air bag diagnostic monitor senses a short to ground on any of these circuits and helps prevent unwanted air bag deployment by opening the air bag diagnostic monitor thermal fuse. Opening this fuse removes all power (battery and backup power) from the air bag deployment circuits. While the short to ground exists, the air bag diagnostic monitor will flash LFC 13 or LFC 14, depending on where the short appears (refer to LFC 13 and 14 for more details). If the short to ground is intermittent and temporarily corrects itself, the air bag diagnostic monitor will flash LFC 51.
NOTE: If the short to ground returns, the higher priority LFC 13 or 14 will be flashed instead of LFC 51.
If the air bag indicator is flashing LFC 51 and a short to ground has not been serviced, this means that an intermittent short to ground exists in the air bag system. The air bag diagnostic monitor should be replaced only after service of the intermittent short has been completed.
In other words the monitor will have to be replaced to correct the concern. Code 51 tells you that there was a short,coffee will do that,LOL, but it is not showing up or present now. Now if you feel that you have it cleaned out good and short is not present then the monitor will do the trick.
Posted on Mar 12, 2009
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Here are step-by-step instructions for the removal and re-installation of your ignition cylinder on your Toyota. Hope this sheds some light on the subject and solves your problem. Have a great day!
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