Fail safe light

The wrench warning light on Ford vehicles is the powertrain malfunction indicator light. When it illuminates, it means that the computer has detected an issue with your vehicle's powertrain or four-wheel-drive system.

A powertrain malfunction light should be taken seriously, as allowing a serious issue to persist can lead to costly repairs to your engine, transmission, or drivetrain in the long run. You should consider having the car towed straight to an authorized dealer rather than driving if you notice any changes in your vehicle's performance like engine shaking or reduced power. In cases where you are towing a heavy load and/or driving up a steep grade, a powertrain malfunction light may be telling you to ease off to avoid overheating. If the problem resolves itself the warning may go away.
It's possible that your vehicle might enter Fail-Safe Mode shortly after the powertrain malfunction light illuminates. Fail-Safe Mode automatically limits engine power so that you can safely maneuver your vehicle off the road without causing any further damage to your vehicle's components. If this happens, you should only continue to drive as long as necessary to bring your vehicle to rest in a safe location and seek immediate repairs.

If your Ford dashboard warning light is orange or red, this can be a signal that your vehicle is experiencing a problem that should be looked at very soon. Use Ford's quick and easy dashboard warning light reference sheet to determine what is happening with your vehicle.
When a light is yellow, your Ford is trying to tell you that service may be required, or at the least, you should have a technician decipher the warning lights meaning. When a Ford dashboard warning light is green or blue, they are simply telling you that one of your Ford's features is being used, or has been activated.

Connect it to a professional grade scan tool computer.

Sometimes the engine failsafe mode is triggered due to a sensor failure or an electrical glitch. It's also common for a security system fault to engage this warning light, which means it's not always a mechanical issue that's causing the failsafe.
Oct 31, 2018

What is the Engine Failsafe Mode? ' YourMechanic Advice

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Vehicle Engine Failsafe Mode Explained and How to Reset it

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In most cases, the check engine light will turn ON as the engine switches to failsafe mode. But having a check engine light does not ...
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‎What is the engine failsafe... · ‎Fail-Safe mode isn't always...

P1299 - Cylinder Head Over Temperature Protection Active Description: Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. An FMEM strategy called fail-safe cooling was activated to cool the engine. Possible Causes:

• Engine cooling system concerns
• Low engine coolant level
• Base engine concerns

Diagnostic Aids: Refer to Section 1, Powertrain Control Software , for more information on the fail-safe cooling strategy and cylinder head temperature sensor. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to Pinpoint Test DL .

I believe fail safe mode is usually direct drive which in most 4 speed transmissions is third gear. As far as what could cause this could be many things, electrical, clutch leakage or transmission oil bypassing the clutch that the transmission wants to engage, clutch slippage which could be the friction disks in a certain clutch that don't have any friction material left on them. IE like a brake pad the friction material on the pad once it is gone the brakes don't operate very good you have metal to metal contact you need to change your brakes. same concept. Are their any codes? Did the check engine light or transmission light come on? If you have a light try and see what the light says by scanning the computer. this should give you a good place to start.

the bank#1 cam position sensor has failed.this is located in the back of the cyl. head closest to fire wall.takes several attempts to start because lack of signal puts ecm in fail safe mode and it substitutes a value to get engine started.about a$100 for sensor and half hour to put it in.

the engine fail safe [limp mode] engages for or when the engine/trans senses damage or something that can cause extreme damage[ no oil pressure] the limp mode is so u can safely get off road or to a service location

first thing you should do is have it plugged into a scanner to see what the problem is.places like auto zone and advance auto parts do it for free. then if it is the throttle position sensor its located on top of the engine not hard to do.but if its one of the four oxygen located on the exhaust sensors depends which one it is but usually requires special socket to remove them without stripping them, very hard.

This means that one of the bulbs somewhere is burnt out. Its a fail safe to get the consumer to fix burnt out lights. if you do not have a bad bulb then it is the flasher, this is located in you fuse box. It needs to be replaced. ($5)

Usually Fail safe comes on when there is a problem with the sensors of the throttle and gas pedal have reporting problem to ECU. You need to have the car diagnosed to see the error codes and check which sensor has the problem. there are three sensors that do the job of reporting to ECU. Could be the throttle or Gas pedal

I encountered the same problem, my engine fail safe mode light came on and shut the car down. I took my car to my mechanic and he found the solution to the problem. The car needed a throttle body cleaning and the fuel filter needed to be replaced. After having my truck serviced my mileage increased from 14.6 mpg to 15.4 mpg
ENGINE FAILED SAFE MODE WARNING LIGHT, GONE Total cost $86.45