ECU transmission problems

Josho · 12-06-2012, 03:59 PM

I've FIXED IT!

I'm in the UK and would have cost £200 to get done. I'm a mechanic by trade but this one at first had me slightly stumped and the customer had already had a £2000 quote for a new gearbox.

Lucky I had a look on Autodata and saw the recall. This one was just out of time.

Anyway I saw the video on the resistors. Took it all apart, fluxed it all and re soldered the resistors.

Car is fine!

It WORKS!

**JuneBug** · 12-07-2012, 12:41 AM

Simply brilliant, Josho!! Did you re-solder all the resistors, or just the ones referenced in the video?

Josho · 12-07-2012, 03:06 AM

Just in the video mate. I was checking the board with a multumeter and found two resistors to have a high resistance point to point on the board but a normal resistance on the ends of the actual resistor.

Wasn't a bad job. I only found that nonw ofy security Torx bits fit so drilled them out. Bit of flux and the solder flowed nice. I bought a low wattage soldering iron for the job too.

**JuneBug** · 12-07-2012, 11:25 AM

Excellent, I'm sure this is all the repair shops do and they charge $250! In my opinion this was all caused by Denso or whoever manufactured the thing not using enough solder in the first place. This is critical in an automotive application where a board is subject to temperature extremes and vibration. Oh, and BTW, the tamper-proof Torx bits are fairly easy to find these days. I recently bought an inexpensive set of T-handle Torx drivers with the standard bit on one end and the tamper proof on the end of the handle.

Josho · 12-08-2012, 06:37 AM

Sorry messed up the post on my phone. No idea on the issue just seems to be barely any solder.

Seems fine now. Experienced a tad bit of slipping into 3rd yesterday when I first insured it, it wouldn't go in unless revved up almost as if to get the oil through but I've done 180 miles now and it shifts absolutely perfectly.

Just tracking and a whining/droning from the rear which I think is the diff low on oil.

12-06-2012, 03:59 PM	#1 (permalink)
Josho Junior Member Country: Join Date: Dec 2012 Location: Kent - UK Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Feedback Score: 0 reviews	ECU transmission problems I've FIXED IT! I'm in the UK and would have cost £200 to get done. I'm a mechanic by trade but this one at first had me slightly stumped and the customer had already had a £2000 quote for a new gearbox. Lucky I had a look on Autodata and saw the recall. This one was just out of time. Anyway I saw the video on the resistors. Took it all apart, fluxed it all and re soldered the resistors. Car is fine! It WORKS!

12-07-2012, 12:41 AM	#2 (permalink)
JuneBug Your Humble Administrator Country: Join Date: Nov 2008 Location: Baton Rouge, LA Posts: 8,981 Thanks: 37 Thanked 625 Times in 517 Posts Feedback Score: 0 reviews	Simply brilliant, Josho!! Did you re-solder all the resistors, or just the ones referenced in the video? __________________ James __________________ 2008 Limited V6 2WD "The Silver Bullet" •Tow Prep •Autodim mirror w/compass •Wade deflector •Weathertech visors •BluLogic Bluetooth •QuickLift hood struts •Auto door locks • (((XM))) radio •Homelink •Unswitched 12V outlets

12-07-2012, 11:25 AM	#4 (permalink)
JuneBug Your Humble Administrator Country: Join Date: Nov 2008 Location: Baton Rouge, LA Posts: 8,981 Thanks: 37 Thanked 625 Times in 517 Posts Feedback Score: 0 reviews	Excellent, I'm sure this is all the repair shops do and they charge $250! In my opinion this was all caused by Denso or whoever manufactured the thing not using enough solder in the first place. This is critical in an automotive application where a board is subject to temperature extremes and vibration. Oh, and BTW, the tamper-proof Torx bits are fairly easy to find these days. I recently bought an inexpensive set of T-handle Torx drivers with the standard bit on one end and the tamper proof on the end of the handle. __________________ James __________________ 2008 Limited V6 2WD "The Silver Bullet" •Tow Prep •Autodim mirror w/compass •Wade deflector •Weathertech visors •BluLogic Bluetooth •QuickLift hood struts •Auto door locks • (((XM))) radio •Homelink •Unswitched 12V outlets

12-07-2012, 03:06 AM	#3 (permalink)
Josho Junior Member Country: Join Date: Dec 2012 Location: Kent - UK Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Feedback Score: 0 reviews	Just in the video mate. I was checking the board with a multumeter and found two resistors to have a high resistance point to point on the board but a normal resistance on the ends of the actual resistor. Wasn't a bad job. I only found that nonw ofy security Torx bits fit so drilled them out. Bit of flux and the solder flowed nice. I bought a low wattage soldering iron for the job too.

12-08-2012, 06:37 AM	#5 (permalink)
Josho Junior Member Country: Join Date: Dec 2012 Location: Kent - UK Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Feedback Score: 0 reviews	Sorry messed up the post on my phone. No idea on the issue just seems to be barely any solder. Seems fine now. Experienced a tad bit of slipping into 3rd yesterday when I first insured it, it wouldn't go in unless revved up almost as if to get the oil through but I've done 180 miles now and it shifts absolutely perfectly. Just tracking and a whining/droning from the rear which I think is the diff low on oil.

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