[Monkey13]

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[m500dpp]

I can confirm you have one or more problems, but dont think you can seriously expect anyone on here to spend their lives spelling out all the possibilities until you are prepared to give more details?

 

[Soloby Rob]

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Do you want chips or rice with that.

 

[Monkey13]

So here it starts, a year ago I had the 3 amigos flashing and car went into limp mode so switched of locked unlocked and started, all fine. Done that a few times in two years so no real concerns.

Last week whilst driving lost throttle peddle and 3 amigos up carried out stop start and ok .done again but wouldn't clear so sprayed abc switch with wd40 (because of years worth of rain in two days) cleared for a but them yesterday happened again oh and also 1 2 and third gear was staying D on the display.. After a can of wd40 and a lot of swearing and messing around with the xyz switch I took the ecu off and sprayed the plugs with contact cleaner even the plugs were spotless and fault cleared?????is it ecu or xyz switch/loom

 

[Monkey13]

Guess no one has any ideas :-(

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[discodrivercumbria]

Guess no one has any ideas :-(

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can you access anybody near you with nancom or hawkeye, then get it read to give you anisight to the problem, if you need a new switch etc, or try a search on here to all the earth points, if they are giving a bit of trouble allsorts happen

 

[sierrafery]

So here it starts, a year ago (1)I had the 3 amigos flashing and car went into limp mode so switched of locked unlocked and started, all fine. Done that a few times in two years so no real concerns.

Last week whilst driving lost throttle peddle and 3 amigos up carried out stop start and ok .done again but wouldn't clear so (2)sprayed abc switch with wd40 (because of years worth of rain in two days) cleared for a but them yesterday happened again oh and also 1 2 and third gear was staying D on the display.. After a can of wd40 and a lot of swearing and messing around with the xyz switch (3)I took the ecu off and sprayed the plugs with contact cleaner even the plugs were spotless and fault cleared?????is it ecu or xyz switch/loom

depends on what you mean:
1. the 3 amigos(ABS-HDC-TC) do not flash whatsoever and doesnt affect driveability(just the brakeing system)...are you sure you dont mean M & S + MIL lights?

2. where is that "abc switch" and how does it look?

3. which ECU? cos if you was up to fix the 3 amigos you must have removed the SLABS ECU and if you was up to fix the limp mode the EAT ECU

Maybe if you would be more precise in your description you could get more help

...but as said above...you better plug in a tester.

 

[Monkey13]

Sorry the m&s lights and the ecu by the bottle jack, thank you for your advice and ideas and hope you've jade a great xmas!!

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[sierrafery]

The best thing is to plug in a dedicated tester and read the fault code from the transmission ECU... there are many other reasons beside the XYZ switch for that limp mode... even if the XYZ switch is the more common it's too expensive to go by luck.

one of those warnings and limp mode reasons is the throttle position sensor's signal failure(P1884-18 in the table)... unplug it and give it a clean untill you get near a tester....see the quoted part and attachments from the workshop manual to realise why i insist on that testing

Diagnostics
While the ignition is on, the EAT ECU diagnoses the system for faults. The extent of the diagnostic capability at any
particular time depends on the prevailing operating conditions, e.g. it is not possible to check torque converter lock-up
while the vehicle is stationary, or to check for a short circuit to earth if the circuit concerned is already at a low
potential.
If a fault is detected, the EAT ECU immediately stores a fault code and the values of three operating parameters
associated with the fault. Depending on the fault, there are four possible effects:
l The fault has little effect on gearbox operation or vehicle emissions. The driver will probably not notice any
change and the warning lamps remain extinguished.
l The fault has little effect on gearbox operation but may effect vehicle emissions. On NAS vehicles, if the fault is
detected on a second consecutive drive cycle, the MIL illuminates.
l All gears are available but kickdown does not function. The sport and manual warning lamps flash. The MIL
remains extinguished.
l Limp home mode is selected and vehicle performance is greatly reduced. The sport and manual warning lamps
flash. In all markets, if the fault is detected on a second consecutive drive cycle, the MIL illuminates.After the detection of a fault, the effects remain active for the remainder of the drive cycle. In subsequent drive cycles,
as soon as the EAT ECU diagnoses the fault is no longer present, it resumes normal control of the gearbox. The
conditions required to diagnose that the fault is no longer present depend on the fault. Some faults require the engine
to be started, others require only that the ignition is switched on.
After a fault has not recurred for forty warm-up cycles, the fault is deleted from the EAT ECU memory. Only five
different faults can be stored in the memory at any one time. If a further fault occurs, the fault with the lowest priority
will be replaced by the new fault.
Mechanical limp home
In the mechanical limp home mode, gear engagement is controlled by the manual valve. The gearbox is fixed in 4th
gear if the fault occurs while the vehicle is moving, or 3rd gear if the fault occurs while the vehicle is stationary. 3rd
gear is also engaged if a vehicle is brought to a stop and the selector lever is moved out of, and back into, D. Neutral
and reverse gear are also available.

 

[Monkey13]

The weird thing is since I sprayed all the plugs on the ecu by the batt(even tho there wasn't any trace of oil) the car is driving better than ever before and gear changes are smoother and more responsive than before??

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[Monkey13]

PS thank you for.putting the fault.codes up for me, much appreciated

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