Electronic park brake locked on - local scan tool Help, if possible..

[coolum]

To explain.
I attached a sharkcat with ALKO brakes last night and prepared for an early depart this morning.

The car was parked on a hill / angle so the park brake was applied. I checked the boat lights and noticed there was a dud connection and reversed the car to a more level ground and it seemed OK and then disconnected the trailer lights and the power for the electric hydraulic discs on the trailer and then reconnected.

everything then seemed to be working fine but when driving off the Electronic park brake would not release.

I have checked fuses under bonnet and in glove box 40 41 and all are fine.

I have tried to manually release the handbrake using the cable but it seems to pull out OK but still does not release the hand brake. (boat now disconnected. Can't move forward or reverse tried toggling low high in neutral and then fwd back whilst pulling cable - how much pressure is required to release the cable - I don't want to break the damn thing which would require a costly replacement proceedure.

Any thoughts or perhaps a scan tool local (Clear fault codes /reset) would be appreciated.

Steve

[Graeme]

It reportedly can require brute force to release it. Ensure that you can't be hit with the tool that you have through the loop when it releases.

[dirvine]

I used a screw driver slotted through loop

[BigJon]

To explain.

- how much pressure is required to release the cable - I don't want to break the damn thing which would require a costly replacement proceedure.

Steve

Force required is plenty. It will release with quite a bang, you will know when it happens.

[TopEndThom]

I’ve been in this situation. The first time it took far more force than I was comfortable with. I used a carabiner hooked into the loop and I would guess at about 30kg of up force required.

[coolum]

I have been at work (rather have been fishing of course) but thanks for all the great input and hints .. I will get out the beast and give it some attention shortly and hopefully get moving.

The next appointment at the LR specialists is 27th May.. (for other suspension work) This is not to say that LR's breakdown more often than other cars (any Joe can fix a tojo) its just that British offroad know their stuff and everyone wants to use them to fix the vehicles.. they really are great for service and repairs of all LR's.

Thanks again everyone .. I hope the cable doesn't break before the work is done.

[Ferret]

The hand brake jams because the brake shoes are not adjusted regularly. Pretty sure you dealer will tell you you need a new actuator unit at a cost of ~$2000+.

If your handy you can remove the actuator unit, unjam it (it's not the brake shoes that actually jam up), reconnect all cabling (that pulling on that wire loop disconnects), adjust your brake shoes so it does happen again and drive on.

There are threads about it all on here somewhere.

[Disco-tastic]

Google bodsys brake bible. It shows you how to adjust it.

[goldey]

The hand brake jams because the brake shoes are not adjusted regularly. Pretty sure you dealer will tell you you need a new actuator unit at a cost of ~$2000+.

If your handy you can remove the actuator unit, unjam it (it's not the brake shoes that actually jam up), reconnect all cabling (that pulling on that wire loop disconnects), adjust your brake shoes so it does happen again and drive on.

There are threads about it all on here somewhere.

It seems the common response when you need to release the handbrake manual release is that you need a completely new brake actuator at $2k plus. I had to pull the release the other day when ours locked on after putting up with the occasional screech noise. Watching a youtube video I now understand the mechanism by which it unlatches and the only way to relatch it is to remove the unit, open it up and relatch it and install the unit back in (with new, frshly adjusted shoes). As long as there are no plastic gear fragments left floating in the actuator unit I assume I'd be good to go? Worse case scenario I suppose is I go through all that pain and find the actuator is stuffed and I need a new one [bigsad].

[Falcon500]

It seems the common response when you need to release the handbrake manual release is that you need a completely new brake actuator at $2k plus. I had to pull the release the other day when ours locked on after putting up with the occasional screech noise. Watching a youtube video I now understand the mechanism by which it unlatches and the only way to relatch it is to remove the unit, open it up and relatch it and install the unit back in (with new, frshly adjusted shoes). As long as there are no plastic gear fragments left floating in the actuator unit I assume I'd be good to go? Worse case scenario I suppose is I go through all that pain and find the actuator is stuffed and I need a new one [bigsad].

I agree with your comments but just to add one more thing: even if the plastic gears are broken there are repair kits available, which is basically a new set of those plastic gears you can install. There are YouTube videos on this too which helps.

[DiscoJeffster]

It seems the common response when you need to release the handbrake manual release is that you need a completely new brake actuator at $2k plus. I had to pull the release the other day when ours locked on after putting up with the occasional screech noise. Watching a youtube video I now understand the mechanism by which it unlatches and the only way to relatch it is to remove the unit, open it up and relatch it and install the unit back in (with new, frshly adjusted shoes). As long as there are no plastic gear fragments left floating in the actuator unit I assume I'd be good to go? Worse case scenario I suppose is I go through all that pain and find the actuator is stuffed and I need a new one [bigsad].

It will relatch itself if it’s in working order. The fact you mention it screeching tells me it was well out of adjustment and on the limits of extension. Annual handbrake maintenance will stop it being an issue.

[jh972]

It does not necessarily need anything replaced. I've had to unlock mine (big effort and loud bang, as reported) but it just rewatched no problem. Used only minimally until adjusted.