D4 Electric Trailer Brake Wiring

I've now had the opportunity to put the RedArc Tow Pro through it's paces. It is very easy to use and very discreet but it is not as progressjve and unobtrusive as my old Tekonsha P3.
The tow pro brake application is much more abrupt and "jerky" than the P3. At first I thought I had it set too high but turning it right down didn't seem to solve the issue.
Don't get me wrong, it is much better than the old hydraulic brakes and if I hadn't been using a P3 for the last few years I would probably not even notice the slight "jerk".

Does it have to be calibrated or just use out of the box?

Just in the process of installing mine, but it does need cal.


These are suppose to be the bees knees of controllers. Let's hope I don't regret the purchase and it is progressive. Nothing worse than jerky aggressive application. For some people this could make them car sick?


Regards


Gerald

The controller was calibrated for me by the autoelectrican who installed it.

Don't worry Gerald you won't regret it. If I hadn't used the P3 previosuly I would be simging it's praises. It could also partly be that I am comparing the controllers fitted to different vehicles.

Curious... Knowing how it is calibrated - what did your installer use to calibrate it?

Hi All,

A mounting idea for the tow pro. Easy access and you can use the provided Ethernet cable and it's close to the firewall grommet.

Made an aluminium plate and bent ears down to fit the body bracket and existing screws.


Regards


Gerald

Quote:

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Originally Posted by Tombie

Curious... Knowing how it is calibrated - what did your installer use to calibrate it?

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Calibration process is in the install instructions Mike, It seems pretty easy, just like all the other's.
I haven't been able to set one up properly as we don't have the trailer when PD'ing vehicles.

Cheers Mate

Quote:

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Originally Posted by VK3GJM

Hi All,

A mounting idea for the tow pro. Easy access and you can use the provided Ethernet cable and it's close to the firewall grommet.

Made an aluminium plate and bent ears down to fit the body bracket and existing screws.


Regards


Gerald

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Good photo Gerald,
These units need to be solidly mounted too. Otherwise they will need to be calibrated every use, Then reset up.

Cheers

I know Pete... The users trailer needs to be attached to perform calibration... A strange sensation!

And yes, as you state - the unit has a multi axis accelerometer and during calibration it sets alignment fore and aft. And intensity based on its initial calibration cycle.

If the installer in the OP post calibrated it for them I assume the trailer was provided?

That would probably cause an issue if it's supposed to have a trailer attached for calibration and it was done without trailer attached - would it even work if no trailer attached?