James Blakely

Member

• Jan 26, 2025

• #1

Hi all
As above, I have 2 td5's and have changed the ecu relays and fuses bridged the cut off switch on the bulkhead to no avail.
Any help very welcome thanks in advance.

Stewart.

 

A

Anaconda

Well-Known Member

• Jan 26, 2025

• #2

Scan it for any codes related to the ecu.
Double check relay holders and wiring.
I should point on this isn't personal experience but what I have picked up via forums.

 

James Blakely

Member

• Jan 26, 2025

• #3

Hi Anaconda I can't get any communication with the ECU on Nanocom.

 

sierrafery

Well-Known Member

• Jan 26, 2025

• #4

Hi, if you are you 100% certain that the ECU is not at fault all the symptoms can be the result of missing power supply or earth to the ECU

btw can nanocom communicate with the BCU and ABS ? if no comms at all with any ECU the problem can be the BCU too or a wiring issue...

complex troubleshooting is needed to measure powers and circuits continuity based on the diagrams so if you are not skilled with such procedures i can't help you much

 

James Blakely

Member

• Jan 27, 2025

• #5

Hi Sierafery
When I pug in the nanocom It communicates wit the BCU and the slabs, but not the ECU.

 

sierrafery

Well-Known Member

• Jan 27, 2025

• #6

James Blakely said:

Hi Sierafery
When I pug in the nanocom It communicates wit the BCU and the slabs, but not the ECU.

Click to expand...

Then that ECU is very suspect, of if the ECU is OK there is a power or earth issue to it... you must try with a 100% good one before chasing a potential wiring issue on that path cos that can be a nightmare

 

James Blakely

Member

• Jan 27, 2025

• #7

Hi Sierrafery
I put the ecu from my auto in and the fuelpump did not run and the engine light and glow plug light still did not aluminate, it was an ecu from an auto put in to a manual though.