Clean the PCB, of course the defected parts not here in the bottom side of PCB... 
![Circuit component Rectangle Hardware programmer Font Computer hardware]()
TL1000R ECU teardown and repair C41 defect
Hi All TL Fans,
I bought 2 defect TL1000R ECU with C41 failure code(FP Relay circuit malfunction).
My work, find the defects(test and debug eng.), and I thought we'd fix that too.
First Day:
Test the ECU on my TLR
See the C41 defect code, the fuel pump not working because the fuel relay not active.
![Speedometer Motor vehicle Light Gauge Odometer]()
Let see what's in it:
![Font Grey Black-and-white Style Rectangle]()
![Output device Audio equipment Gadget Gas Rectangle]()
The first mark, this is not it won't be easy...(glass or crystal stone in the silicone)
![Hood Automotive tire Automotive design Motor vehicle Vehicle door]()
Remove the back side of plastic box
![Rectangle Tableware Dishware Recipe Metal]()
Remove the silicone with some tools
![Grey Tints and shades Monochrome photography Monochrome Concrete]()
![Liquid Fluid Rectangle Glass Tints and shades]()
![Rectangle Font Tints and shades Jewellery Ceiling]()
![Rectangle Material property Font Tints and shades Art]()
![Light Automotive lighting Wall Rectangle Tap]()
I bought 2 defect TL1000R ECU with C41 failure code(FP Relay circuit malfunction).
My work, find the defects(test and debug eng.), and I thought we'd fix that too.
First Day:
Test the ECU on my TLR
See the C41 defect code, the fuel pump not working because the fuel relay not active.
Let see what's in it:
The first mark, this is not it won't be easy...(glass or crystal stone in the silicone)
Remove the back side of plastic box
Remove the silicone with some tools
1 - 13 of 13 Posts
Second day:
Then, cut again the top plastic case, and remove the top cover.
![Gas Screwdriver Flooring Machine Asphalt]()
![Input device Font Material property Gadget Office supplies]()
I SEE YOU! Here is the capacitors top, and the microcontroller.
![Rectangle Tints and shades Font Monochrome photography Metal]()
Then, cut again the top plastic case, and remove the top cover.
I SEE YOU!
Here is the capacitors top, and the microcontroller.
Third day:
Remove the glass or something with My Friend. This is one day work:
![Circuit component Passive circuit component Hardware programmer Rectangle Computer hardware]()
![Rectangle Grey Font Pattern Art]()
![Rectangle Electronic component Font Electric blue Fashion accessory]()
Remove the glass or something with My Friend. This is one day work:
Fourth day:
Remove the side plastic, and clean the top side of PCB.
Top
![Passive circuit component Circuit component Hardware programmer Computer hardware Microcontroller]()
Bottom
![Circuit component Electronic component Hardware programmer Computer hardware Font]()
Remove the side plastic, and clean the top side of PCB.
Top
Bottom
Search the bad component. I find it 1 minutes.
![Circuit component Hood Electrical wiring Electronic engineering Hardware programmer]()
Plastic box reassembly with soldering station.
![Grey Rectangle Gas Graphite Wood]()
![Rectangle Tints and shades Composite material Monochrome photography Shadow]()
![Rectangle Grey Gas Gadget Metal]()
![Rectangle Grey Composite material Font Tints and shades]()
![Computer keyboard Input device Netbook Peripheral Grey]()
Oszitrek,
You are one determined operator! Kudos to you for taking on a very daunting project! Obviously, this is not your first rodeo.
I am impressed. Wow!
It's difficult for my old eyes to read the red text notes on the green, jumbled background of the PCB, but I appreciate your efforts to document it.
As rxf610 asked, what type of transistor is used to drive the fuel pump signal?
Also, as rxf610 noted, if there were an easier, more efficient way to access that transistor, there are many TLR ECMs floating around that could benefit from this fix.
Again, nice work!
Helo Six5,Oszitrek,
You are one determined operator! Kudos to you for taking on a very daunting project! Obviously, this is not your first rodeo.
I am impressed. Wow!
It's difficult for my old eyes to read the red text notes on the green, jumbled background of the PCB, but I appreciate your efforts to document it.
As rxf610 asked, what type of transistor is used to drive the fuel pump signal?
Also, as rxf610 noted, if there were an easier, more efficient way to access that transistor, there are many TLR ECMs floating around that could benefit from this fix.
Again, nice work!
Thank you for the praise.
Yes, this is not the first ECM which I repaired.Editing one better paint for You.
In progress one helper pack for homemade ECM repair.
1 - 13 of 13 Posts
