Options for ECU replacement

[Farnham Dave]

Finally got the car to the dealer for service now that covid-19 is in retreat. 

Been having some odd problems which they've been looking into for me.

Long story short, ECU might need replacement. I'm hoping not to spend the £2000 mentioned, either because it's ok after all, or because I find a cheaper alternative.

I notice there are ECU "specialists" out there who can clone the old faulty unit, and then fit as a replacement. Anyone had experience of these companies?

Other option (or maybe not) is buying a used ECU from eBay and fitting that. Again. Anyone know if this is even possible?

 

[ColinBarber]

Buying a used one from a breaker is the best option. I'm sure it is possible to clone a Toyota ECU but they aren't as programmable as European manufactures, so I wouldn't go down that route if at all possible.

[Farnham Dave]

7 minutes ago, ColinBarber said:

Buying a used one from a breaker is the best option. I'm sure it is possible to clone a Toyota ECU but they aren't as programmable as European manufactures, so I wouldn't go down that route if at all possible.

So, can I just plug a used RX400h ECU in, or does it have to be programmed for my specific vehicle?

[ColinBarber]

3 minutes ago, Farnham Dave said:

So, can I just plug a used RX400h ECU in, or does it have to be programmed for my specific vehicle?

I believe the immobiliser control unit is separate to the engine ECU on the 400h so an ECU with the same part code should plug straight in.

 

I will say that it is extremely rare for an ECU problem so I'd rule out other possibilities first.

[Farnham Dave]

41 minutes ago, ColinBarber said:

I believe the immobiliser control unit is separate to the engine ECU on the 400h so an ECU with the same part code should plug straight in.

 

I will say that it is extremely rare for an ECU problem so I'd rule out other possibilities first.

Thanks for that. Definitely looking at other issues that could be contributing. Personally, I'm expecting/hoping that the new ignition barrel should fix things... But if it doesn't, at least the worst case scenario has lost its teeth now... You've done wonders for my blood pressure😀

[Billsykes]

There is a company in Heanor Derbyshire called ECU testing got a good reputation locally, although I’ve never had to use them.The chap who services my car uses them, and he’s based Sheffield end (Dave Lex tek ) .

01773 535638 is their number, I hope this helps you .

[Trunkz]

+1 for ECU Testing. We've used them in the past; good blokes 🙂 

[m4rkw]

I would definitely look into repair options before resorting to replacement.