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Electric Parking Brake
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Author Post
MikeH   
Sun Mar 18 2018, 08:53pm
Joined: Jan 22 2014
Member No: #1555
Location: Norfolk
 Hi. I had an offside cable snap a few weeks ago and for some reason, the parking brake assembly decided to go into lock-on mode with the remaining cable. I tried unsuccessfully to put it into 'cable replacement mode' with my Lexia but the unit just whirred and after many attempts, I resorted to cutting the remaining good cable to remove the unit.

I have the unit on the bench, split apart and have acquired new cables for a company in Poland. I had to dismantle the electronic unit to get the threaded-end cable out but all seems well inside and it looks to be a case of simply reinstalling once I can get the system to go into cable replacement mode.

Unfortunately, I went to do this today and there was no dialogue with the following ECU's: Telematic, Injection, Anti-lock Brake System, Suspension, Boot Relay Unit, Power Steering, Directional Headlamps, Deflation Detection, Electric Secondary Brake, Battery Charge Status Unit and the car won't start.

I have the brake unit off the car but didn't think that the simple fact of it being disconnected would cause all these issues with general communication. I will plug the unit back in tomorrow and try again but has anyone ever seen the three signs in the centre of the dash warning lights panel attached (or have any advice on why all these problems have suddenly appeared)? On a final note, I have a 2.2 manual.

Does anyone know if the 2.7 brake unit is interchangeable in case I need to go this route? I've attached a photo of the assembly's ID plate and it looks to be different to the 2.7's assembly ID plate from pictures I can find on the internet.



Eric   
Sun Mar 18 2018, 09:29pm

Joined: Mar 31 2011
Member No: #425
Location: Fareham
 Hello Mike, The three dashes you have on the display seem to be linked to the speedo section of the screen. It could be you may have to attach the repaired assembly to the car before it thinks it can go anywhere - just a thought. Good luck, Eric.
C6Dave   
Mon Mar 19 2018, 09:03am


Joined: Oct 01 2009
Member No: #1
Location: Northumberland
 The handbrake unit has the same part numbers on the 2.2 and 2.7HDi - part: 470204

Searching both CIT and Peugeot spare parts on 9662015480 doesn't bring anything up though..... which is very strange as it does on eBay - Click Here -
Website
jamescarruthers   
Mon Mar 19 2018, 09:34am

Joined: Jan 19 2014
Member No: #1548
Location: Cambridge
 I was told at B&L that the handbrake actuator is coded to the vehicle and can only be coded once (shame on Citroen!). Therefore, your plan to use from a (presumably used 2.7) might not go so well.
Jas16   
Mon Mar 19 2018, 07:27pm
Joined: Feb 07 2017
Member No: #2994
Location: West London
 My 2.2 manual had the same problem. If you can get hold of the cables on their own then keep the same unit and have the cable changed. I had mine done by a local garage.

When enquired via local Citroen, they wanted close to £1000 for parts alone. I did open a similar thread somewhere.

There is a C6 being broken on ebay that have a cable set.
MikeH   
Sun Mar 25 2018, 07:30pm
Joined: Jan 22 2014
Member No: #1555
Location: Norfolk
 All back together and everything works fine. IN case anyone has a similar problem, I'll post a couple of pictures and also the name of the cable manufacturer in Poland who did the cables for me. He did an excellent job and with postage, the set came to less than £100.

Mariusz Mucha
e:mail - - e mail -
website .... - Click Here -

As a tip, you don't need to remove the central console to re-attach the emergency release. With a little dexterity and a pair of long-nose pliers, it's relatively simple to do it without removing any of the interior.




cruiserphil   
Mon Mar 26 2018, 01:59pm


Joined: Jan 24 2010
Member No: #38
Location: Celbridge
 Thanks for posting MikeH,

Best regards,

Phil C.
Dan595   
Mon Nov 26 2018, 09:58am
Joined: Nov 26 2010
Member No: #299
Location: Wiltshire
 MikeH, can I ask if you needed to calibrate the unit and the level sensor after fitting the new cables?

When you are using the long nose pliers with dexterity, are you under the car or inside it?

Thanks for your help.
Dan595   
Mon Nov 26 2018, 11:24am
Joined: Nov 26 2010
Member No: #299
Location: Wiltshire
 MikeH, can I ask if you needed to calibrate the unit and the level sensor after fitting the new cables?

When you are using the long nose pliers with dexterity, are you under the car or inside it?

Thanks for your help.
Krtcho   
Thu Jan 10 2019, 12:45pm
Joined: May 07 2016
Member No: #2620
Location: Fazana
 Hi, I had same problem with right wheel cable when it snaped and broke due to corrosion. I have removed the break ECU and tried to drive the car without it, but it was not possible. So I have mounted back the ECU and drove the car without cables. Only thing is that you shouldn't unintentionally activate hand brake because the ECU will lit alarm on display. I have found in Zagreb (Croatia) a small company that makes cables based on the given sample. So my cable costed me less than £20.

There was no need to do any ECU programming, nor calibration. The system calibrates it selves as long as cables lengths are within specifications. If cables are too long, when they are fitted, brakes do not hold (which sensors read) and spare brake alarm is activated, or cables cannot be mounted at all if they are too short.
sandiego77   
Sun Apr 05 2026, 04:06pm
Joined: Jan 27 2022
Member No: #4944
Location: Klaipeda
 Hi,
Has anyone tried replacing the parking brake cables without removing the unit?

New cables such as ADRIAUTO 07.0220.1 or COFLE 921ECT002 can be bought for around €50, while TRISCAN 8140281125 costs about €80.

Also, here’s a short story to (hopefully) entertain you.

I recently did a rear brake overhaul:
From this:



To this:



Somehow, I managed to run into an electronic parking brake issue. Before starting the work, the brakes were set to service position:




In the middle of the job, I realized that my universal piston tool was too narrow — it needs about 3.5 cm spacing:




Needle-nose pliers helped me screw it in.

I finished the left side first, but didn’t have time to do the right side (not my garage, couldn’t stay overnight). I did calibration and drove away. The next day, I bought a proper brake tool set and finished the right side.

Before this job, the electronic parking brake worked perfectly — no errors.

This time, calibration didn’t go well. An orange triangle appeared on the dashboard, and a message on Diagbox saying something like “operation cannot be completed.”

These were the fault codes on the last day:





C1554 appeared first. U1113, U1213, and C2000 showed up later while I was trying to fix the issue. No fault codes in the ESP module.

Diagbox couldn’t complete calibration or tension checks. After several attempts, it finally completed calibration, but the error remained — this time with a red blinking triangle.

The parking brake could lock, but wouldn’t release. After some time, it released by itself. Later, it could lock or release, but still showed a malfunction error.

It seemed like Diagbox couldn’t detect whether the cables were properly tensioned or not. Sometimes the cables could be tightened or released. It didn’t seem like a mechanical issue — no unusual noises, no signs of cable damage or misalignment before using the electronic brake.

I found a similar issue online (Diagbox unable to complete calibration) and tried the same procedure: using the emergency release. It wasn’t as scary as I expected — just a solid “clonk” sound.

After that, I recalibrated, turned off ignition, and the orange triangle disappeared. Now the parking brake works normally — it holds, releases properly, and even holds on a downhill slope.

Any ideas why this issue occurred?

Going to enjoy the car a bit before the next repairs, because I’ve already bought new hoses for the rear callipers… and honestly, I’m already annoyed just looking at their shape:





There is no information in ServiceBox about replacing the rear brake hoses.
 

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