Thread: D4 2.7 - Limp mode and fault messages

Try the brake switch

There's quite a few things it could be. It's probably a signal input to the ABS module. If not a faulty brake switch, then maybe intermittent wheel speed sensor output(s). They're cheap and easy to replace, but it would be best if he could get the actual fault codes read.

Cheers,

Gordon

He might check the electrical harness behind the front left wheel to see if the harness has come away from the chassis and the tyre has rubbed through some of the wires.

What's his wheel alignment like? My D3 did this after a wheel alignment when something was left undone.

The warning messages on the dash seem to bear little relationship to the problem so I would support getting faults read.

I have a D3 that repeatedly went into limp mode following a transmission fault, engine fault and handbrake fault warnings with "F" displayed on the console.

Service dept put it on the fault reader and it showed that there was a fault with the fuel pump and it needed replacement!!??

Sounds bizzare but they assured me that would fix problem (will know after tomorrow).

My car was doing the same when registering a EGR fault, and read on Disco3uk that a dirty MAP senser can cause this, but being a newer D4 find that would unlikely be the problem.

A fault reader of some sort seems to be a must.

Doesnt help him much ATM


Cheers Ean

/tin foil hat on/

I believe these faults are just random warnings created by Land Rover to keep you concerned about the health of your car and an excuse for them to replace seemingly random bits on the car.

It would be interesting to start a thread listing all the parts on various cars that have been replaced when these series of faults come up.

/tin foil hat off/

How accurate are the diagnostic codes when this fault occurs? Do they really pinpoint the cause of the fault?

Originally Posted by Ashes

/tin foil hat on/

I believe these faults are just random warnings created by Land Rover to keep you concerned about the health of your car and an excuse for them to replace seemingly random bits on the car.

It would be interesting to start a thread listing all the parts on various cars that have been replaced when these series of faults come up.

/tin foil hat off/

How accurate are the diagnostic codes when this fault occurs? Do they really pinpoint the cause of the fault?

Mine showed the fault code # and then said what the fault was... just need someone to make 1 that fixes the fault for you and all would be great.

Cheers Ean