dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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| Discovery 4 odd EPB fault |
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The EPB on my 2016 D4 has failed, but not in the usual way. The EPB is off and will not apply. The parking brake symbol is flashing red and the general warning triangle light is on. The dash says lift lever to apply brake, but lifting the lever does not apparently do anything. No fault stood out when I read them and clearing the fault codes did not help. The car has recently had a non-genuine replacement EPB module, which seems to be well fitted even though I have no idea how they managed it as the adblue tank has not been removed. There might be a noise sometimes from the EPB when waggling the lever, but not often and not the usual grinding when the shoes need adjustment, just a motor spinning whine. The lever/switch is working and I have tried a spare just in case with no change. Any ideas? I have found some similar threads, but they all stop just before the problem is solved!
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 11th Sep 2024 10:14 pm |
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itsaguything
Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 262
  
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Specifically, what are the codes being thrown?
Cheers 2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green
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| 12th Sep 2024 12:04 am |
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dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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Diagnostic protocol
Scan session start: Sunday, 8 September 2024 11:33:17
Vehicle details
Manufacturer: Land Rover
Model: Discovery IV (L462)
Year: 2016
ECU Information
System: Engine Diesel
ECU Name: 306DT 3,0 Bosch EDC17CP11
Information data
Parameter Value
ECU file name GH22-14C204-PAC
Vehicle identification VIN
Fault Codes - Actions
Time DTC Type Description
11:33:18.188 Read fault codes
11:33:18.299 Registered Faults
U0447 --- Intermittent
2BAE --- Unknown fault code
2BAE --- Unknown fault code
2BAF --- Unknown fault code
U0128 --- No communication parking control unit
Historical
ECU Information
System: Brake System
ECU Name: ABS - Anti-lock Braking System
Fault Codes - Actions
Time DTC Type Description
11:33:23.619 No registered faults
ECU Information
System: Instrument
ECU Name: IPC - Dashboard
Fault Codes - Actions
1
MaxiECU OBD Reader 2.0.113.285
Time DTC Type Description
11:33:29.069 No registered faults
ECU Information
System: Climate Control
ECU Name: HVAC - Heating Ventilation and Air Condition
Fault Codes - Actions
Time DTC Type Description
11:33:33.124 No registered faults
ECU Information
System: Gearbox
ECU Name: TCM - Transmission Control Module
Fault Codes - Actions
Time DTC Type Description
11:33:38.072 No registered faults
ECU Information
System: Gearbox
ECU Name: TCCM - Transfer case
Fault Codes - Actions
Time DTC Type Description
11:33:42.078 No registered faults
ECU Information
System: Gearbox
ECU Name: RDCM - Rear Differential Control Module
No data for scanned ECU
Connection failed
ECU Information
System: Restraints
ECU Name: Airbag
Fault Codes - Actions
Time DTC Type Description
11:33:53.060 No registered faults
2
MaxiECU OBD Reader 2.0.113.285
ECU Information
System: Restraints
ECU Name: OCS - Occupant restrains sensor
No data for scanned ECU
Connection failed
ECU Information
System: Audio Control Module
ECU Name: AAM - Audio Amplifer Module
No data for scanned ECU
Connection failed
ECU Information
System: Audio Control Module
ECU Name: ACM - Front audio control module
No data for scanned ECU
Connection failed
ECU Information
System: Body Control Module
ECU Name: BCM - Body Control Module
Fault Codes - Actions
Time DTC Type Description
11:34:13.074 No registered faults
ECU Information
System: Door
ECU Name: DDM - Drivers door
Fault Codes - Actions
Time DTC Type Description
11:34:18.092 No registered faults
ECU Information
System: Headlight
ECU Name: HCM - Headlamp Control Module "A"
3
MaxiECU OBD Reader 2.0.113.285
No data for scanned ECU
Connection failed
ECU Information
System: Other
ECU Name: ATCM - All terrain control module
Fault Codes - Actions
Time DTC Type Description
11:34:28.096 No registered faults
ECU Information
System: Other
ECU Name: CCM - Cruise control
No data for scanned ECU
Connection failed
ECU Information
System: Audio Control Module
ECU Name: DABM - Digital audio broadcast module
No data for scanned ECU
Connection failed
ECU Information
System: Parking System
ECU Name: PAM - Parking Assistance Module
No data for scanned ECU
Connection failed
ECU Information
System: Parking System
ECU Name: EPB - Electric Parking Brake
Fault Codes - Actions
Time DTC Type Description
11:34:48.077 No registered faults
4
MaxiECU OBD Reader 2.0.113.285
ECU Information
System: Door
ECU Name: PDM - Passenger door
Fault Codes - Actions
Time DTC Type Description
11:34:53.107 No registered faults
ECU Information
System: Immobiliser
ECU Name: VIM - Immobiliser
No data for scanned ECU
Connection failed
ECU Information
System: Audio Control Module
ECU Name: DACMC - Digital audio control module "C"
No data for scanned ECU
Connection failed
ECU Information
System: Infotainment
ECU Name: TEL - Cellular telephone control
No data for scanned ECU
Connection failed
ECU Information
System: Headlight
ECU Name: HCMB - Headlamp control module "B"
No data for scanned ECU
Connection failed
ECU Information
System: Infotainment
ECU Name: REM - Entertainment control rear
No data for scanned ECU
Connection failed
5
MaxiECU OBD Reader 2.0.113.285
ECU Information
System: Steering
ECU Name: SASM - Steering angle sensor
Fault Codes - Actions
Time DTC Type Description
11:35:23.062 No registered faults
ECU Information
System: Infotainment
ECU Name: SPRM - Speech recognition control
No data for scanned ECU
Connection failed
ECU Information
System: Infotainment
ECU Name: TVM - Television module
No data for scanned ECU
Connection failed
ECU Information
System: Audio Control Module
ECU Name: SRM - Satellite audio unit module
No data for scanned ECU
Connection failed
ECU Information
System: Other
ECU Name: IPMB - Image processing module "B"
No data for scanned ECU
Connection failed
ECU Information
System: Suspension
ECU Name: RLM - Ride level control module
6
MaxiECU OBD Reader 2.0.113.285
Fault Codes - Actions
Time DTC Type Description
11:35:48.062 No registered faults
ECU Information
System: Other
ECU Name: DSM - Seat module, driver
No data for scanned ECU
Connection failed
ECU Information
System: Other
ECU Name: APIM - Accessory protocol interface module
No data for scanned ECU
Connection failed
ECU Information
System: Infotainment
ECU Name: FCDIM - Front Control Interface Module
Fault Codes - Actions
Time DTC Type Description
11:36:02.046 No registered faults
ECU Information
System: Infotainment
ECU Name: FEM - Front control interface module
No data for scanned ECU
Connection failed
ECU Information
System: Infotainment
ECU Name: FCIMB - Front control interface module "B"
Fault Codes - Actions
Time DTC Type Description
11:36:11.077 No registered faults
7
MaxiECU OBD Reader 2.0.113.285
ECU Information
System: Infotainment
ECU Name: FCIM - Front control interface module
Fault Codes - Actions
Time DTC Type Description
11:36:15.077 No registered faults
ECU Information
System: Additional/Stationary Heater
ECU Name: AHCM - Auxiliary Heater Control Module
Fault Codes - Actions
Time DTC Type Description
11:36:20.095 No registered faults
ECU Information
System: Immobiliser
ECU Name: KVM - Keyless vehicle module
Fault Codes - Actions
Time DTC Type Description
11:36:24.074 No registered faults
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| 12th Sep 2024 8:21 am |
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dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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Before clearing the codes I had C1A47 Intermittent on the EPB. This code has not returned.
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| 12th Sep 2024 8:24 am |
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eightfoot
Member Since: 12 Apr 2015
Location: sunny essex
Posts: 810
 
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| Re: Discovery 4 odd EPB fault |
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dpround wrote:The EPB on my 2016 D4 has failed, but not in the usual way. The EPB is off and will not apply. The parking brake symbol is flashing red and the general warning triangle light is on. The dash says lift lever to apply brake, but lifting the lever does not apparently do anything. No fault stood out when I read them and clearing the fault codes did not help. The car has recently had a non-genuine replacement EPB module, which seems to be well fitted even though I have no idea how they managed it as the adblue tank has not been removed. There might be a noise sometimes from the EPB when waggling the lever, but not often and not the usual grinding when the shoes need adjustment, just a motor spinning whine. The lever/switch is working and I have tried a spare just in case with no change. Any ideas? I have found some similar threads, but they all stop just before the problem is solved!
my d3 recently did this long story short the oh was using it applied the handbrake it screeched she panicked pressed the switch down and switched the ign off at same time this then makes the system do an emergency release
when i looked at it the nipple had snapped off the end of the cable and fallen into the hub it was showing the same message on the dash as yours and had a code something like emergency release activated so might be worth whipping the drums off and checking the cable is ok  however if its snapped its a mare to replace the cable but can be done if your spanner handy please excuse any grammer/punctuation mistakes,i'm thick,thankyou
current vehicles 2005 d3 2013 d4
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| 12th Sep 2024 8:30 am |
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urhunden
Member Since: 15 Jan 2010
Location: Stockholm
Posts: 817
  
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dpround. I have exactly the same problem. Non genuine EPB fitted. A short time it worked but I had to lift and depress the lever to extinguish the parking brake light.
but now nothing works. Same lights and message as dpround. No error code.
Aby ideas? Discovery 4, MY2011, TDV6 Auto
Discovery 4, MY2013, SDV6 Auto
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| 12th Sep 2024 8:39 am |
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dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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I have spoken to the garage who fitted the EPB module. The mechanic said that it was probably a fault in the module, but he has fitted several and this one is the first to go faulty. C1A47 fault, even though it cleared and has not come back, suggests internal issues as it refers to the force sensor. I wonder if the gears have stripped as I think I hear a motor run sometimes. I'm not sure it would throw any faults if that did happen as none of the codes that I have read really fit.
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| 12th Sep 2024 9:38 am |
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urhunden
Member Since: 15 Jan 2010
Location: Stockholm
Posts: 817
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I have the circuit board from the old unit and will try to put it in the module while in place before buying a new unit.
Do you think that an original board will fit and connect in the non original case? Discovery 4, MY2011, TDV6 Auto
Discovery 4, MY2013, SDV6 Auto
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| 12th Sep 2024 9:42 am |
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dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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If I had the OEM unit, I would certainly try to combine the two using as little of the pattern part as possible. More than likely all the parts are interchangeable. If all that has failed on your old unit is the gears, I'd swap just them. I have repaired a EPB with a gearset from ebay and it worked without issue for the remaining life of the vehicle. Sadly, in my case a garage swapped the EPB and I don't have the OEM unit to work with.
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| 12th Sep 2024 9:47 am |
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dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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Does anyone know if the D3 EPB is compatible with the D4? I have a D3 with a working EPB which I am not sure what to do with. I bought the D4 as the D3 developed a nasty intermittent fault with the CAN bus and kept going into a desperately slow limp home mode with an absolute raft of fault codes. To be honest, I didn't know where to start with fixing it. Less than 2 weeks after buying the D4 we have this fault. Got to wonder if it is time to try some other car!
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| 12th Sep 2024 9:53 am |
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itsaguything
Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 262
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That's a long list of faults!
And as per the workshop manual (and experience) its best to remove those faults that have nothing to do with the issue at hand.
You have heard me say this before... Number 1 cause of EPB issues is an insufficient electrical source. (Actually, in another forum we have coined the phrase 'ITBS'.)
In fact the tell tales are there with the messages: ...no communications... . Implying there is not enough electrical power to power up the modules needed.
Therefore,
1. measure the resting voltage of your battery. If it is 12.5v or less, it needs replacing.
(the replacement should read 12.6v, at rest)
2. clear codes
3. re-read codes following a cycle of the ignition.
4. search for the root cause and adopt the pinpoint tests in the manual.
Incidentally, there are 2 devices that require significant electrical power: starter and EPB.
It may not be obvious but, the engine should be running when engaging/disengaging the epb as to mitigate the draining of the battery.
I offer no input or opinion to the fact you replaced your EPB module with a chinesium knock off...
Cheers. 2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green
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| 12th Sep 2024 1:58 pm |
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dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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>That's a long list of faults!
Not really, it is just the super verbose way that Maxiecu makes its report. If you want to see a proper long list, I could post the one from the D3 when it is having a bad day!
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| 12th Sep 2024 2:09 pm |
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itsaguything
Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 262
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lol...
As per the tech support, knowledge base derived statistics... > 70% of electronic device managed issues stem from a battery at/with insufficient capacity... the naysayers play a host of time and money wasting games only to learn their case is no different to the >70% of others.
Cheers! 2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green
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| 12th Sep 2024 2:18 pm |
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dpround
Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 26
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The D3 does tend to throw a wobbly at low speed, manoeuvring or start-up, which certainly suggests that voltage may be playing a part. Then I leave it in disgrace for a fortnight and it is absolutely fine. I suspect a combination of 20 year old wiring, lots of abuse and a slightly lazy alternator. I don't know if I will ever get to the bottom of that fault. The D4 needs to get fixed as that was supposed to be the reliable (Ha) replacement.
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| 12th Sep 2024 2:28 pm |
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Martin
Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18573
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"U0128 --- No communication parking control unit"
Seems fairly clear...
D3 and D4 EPB modules are NOT compatible. Mechanically, yes. Electronically, no.
What EXACT part (number) have the garage fitted? Have they fitted a D3 module, which perhaps the scan tool will communicate with OK, but the rest of the car can't?
I would expect more modules to be complaining that they can't communicate with the EPB module though. 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
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| 12th Sep 2024 2:38 pm |
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