I can get an EPB motor and module for my standard S Type, but it's from a UK 2002 STR. I've been assured it's the same, but:

a) Did STRs have EPBs in 2002, as all the standard models were on normal handbrakes at that time?
b) Is it the same motor and module as fitted on the facelift standard S Types?

Advice appreciated.

 

Careful here. S-Types were redesigned for 2002.5MY (2003 USA) and the STR came in then. Later on there was a facelift and various modules also moved across to the CAN bus. Check which bus yours is on so you don't buy the wrong kind entirely. Have a look at the later electrical guide if you can and you'll see how it compares to the 2002.5MY one.

(The EPB module for the 2002 STR would work on any 2002 S-Type I believe.)

JEPC may show module part numbers which if they change may help with the VIN break where the CAN came in for that module.

 

Thanks for that. I'm not that good with electrical diagrams but I'll have a go.

JEPC, that's the parts catalogue? I tried downloading that before, not sure where, but it didn't work.

 

I'd be careful JEPC shows a huge list of different part numbers depending on VIN.

 

The mechanical cables vary a lot but I think the motor is perhaps common to all and the module only changed as the bus changed - but am not sure so JEPC looked like it might help.

 

Would the module have any identifying numbers on it, so I can check prior to purchase?
It's possible that I can buy the motor and module on a return if no use basis. Then I can compare directly.

 

Not to hijack- but both your actuator motor and module are dead?

 

I'm not sure what's up with them. More often than not, I get the cannot apply handbrake - parkbrake fault message. Some days it can work 80% of the time, other days it will not work at all. You can hear it grind on, then off again.
It has been suggested that my elderly battery is to blame, but that's usually accompanied by other odd messages too isn't it? I know I should get another battery, but it's been money after money on my other two cars recently. I was going to replace both the motor and module, as buying a new battery at £90 with no guarantee it will help the parkbrake could be £90 spent on the actual problem.

I've tried the reset a few times. It usually works first time, then back to not working on the second time. I've wired the motor directly at the connector in the boot, which seems to make the brake apply fully.
It could just be the module..... or it could actually be the battery?

Do you know, would the module have any identifying numbers on it, so I can check compatibilty prior to purchase?
It's possible that I can buy the motor and module on a return if no use basis. Then I can compare directly as there are many options depending on VIN

 

Looks like an array of modules also,

 

I'd do additional troubleshooting before spending any money. Could be one/both actuator cables, could be one/both calipers, could be the battery.

I've got one cable that applies the brake just fine but is reluctant to release on occasion. I think I'll teach it a lesson it'll never forget this winter during layup.

 

They don't make it easy do they?

 

I've been underneath and watched and felt the cables move, they seem OK. The arms that the cables hook onto at the caliper end also move freely. The EPB seems to make a grinding noise in operation, but not sure if that's the motor or cables?

At the MOT prior to me buying the car, it failed on the handbrake not braking hard enough, then it passed the next day. I did notice that the last garage service replaced the brakes and discs before i had it, but didn't put the pads in correctly. They didn't line up the pips on the pads with the slots on the piston, so the pads have worn at an angle. I've put them in properly now, but the pad is slightly wedge shaped now and I didn't have any handy to replace them with.

The previously odd application angle could have upset or over worked the motor? It's never worked well,even when it does work at all. When in D it will not hold the car even at idle.

 

Maybe try new pads to see if they have any positive effect on the EPB. The worn pads would tend to push the caliper piston at an odd angle, possibly causing to jam.

 

Even with the pads as now, when I connect the motor direct to the battery, it works fine.
Changing them is worth a try, but it will have to wait until later in the week, so I'll report back.

 

The module has info on it but a spare is not going to be cheap I suspect.

 

...is anything cheap on these cars?

I tried the old connect the battery to the motor trick again and stupidly pulled the wrong connector to use. When I put the battery wires on the thick wires - SPARK. I blew the 30A fuse for the parkbrake. Replaced it and pulled the correct connector from the module, but I can't get the motor to engage at all now.

If I put the wires in one way, it sounds like its moving but which way I have no idea. It doesn't engage.
If I put the wires in the other way, the motor goes click, click, click quickly like when a starter motor fails. It doesn't engage.

Battery is reading 11.5v now and 14.4v when engine going. Regardless of whether I connect the wires to the motor with engine going or not, the same as above happens, so it's getting plenty of juice on at least one method. No?

Cheap or not, I've got to get this fixed. Preferably cheap.

 

There a lot of numbers on my module.

P/N 4R83-2C496-BF...the F has been drawn on in black pen, over what looks like E?
T-O-D:901-1041-01
S/W:194-7076 REV "A"
040710120712

The one that I can buy has mostly the same info on it, except it has AE, not BF.
The T-O-D is the same.
S/W is the same, but the REV is "-", not REV "A".
The last number is completely different.

I gather this module is from a diesel 2007 model S Type, so does that make a difference?

For the last two days, the EPB has been fine, but today it worked only until late afternoon, now it won't apply?