TD5 NNN000120 ECU issues

Locko

Member

Posts

26

Location

Cheshire

• Nov 9, 2019

• #1

Hello,

I have a Landrover TD5 ECU NNN000120 that will not trigger injectors after is got a bit wet!

I dryed it out and found 2 transistors (IRL 540n) they were burnt out, I replaced them and they blew again straight away.

Any ideas why or what to check?

Thanks in advance

 

Locko

Member

Posts

26

Location

Cheshire

• Nov 9, 2019

• #2

This wet!!!

 

Attachments

• 
  A7B24999-4F91-4BED-A5E4-5B9499645117.jpeg

  363.5 KB · Views: 223

Locko

Member

Posts

26

Location

Cheshire

• Nov 9, 2019

• #3

These 2 tranisitors

 

Attachments

• 
  58C4A14A-6CE9-4781-80D4-E128B9F9A455.jpeg

  346.1 KB · Views: 389
• 
  E004E9B5-75C9-47E1-A6A9-37E7275806F9.jpeg

  244.6 KB · Views: 256

Locko

Member

Posts

26

Location

Cheshire

• Nov 9, 2019

• #4

Or does anyone know a of a good repair service?

 

A

Alpinejim

Active Member

Posts

242

Location

Sunny Suffolk

• Nov 30, 2019

• #5

Locko said:

I dryed it out and found 2 transistors (IRL 540n) they were burnt out, I replaced them and they blew again straight away.

Click to expand...

Then you have a fault/short elsewhere. Or elsewwhere in the ECU.

 

lightning

Well-Known Member

Posts

4,156

Location

High Peak

• Dec 1, 2019

• #6

If those transistors blew as soon as you connected the power then there’s something else in the ECU failed, most likely the voltage regulator or bias resistors.

It may be repairable by a specialist but sounds like you need a replacement