A week ago I was driving the car (Skoda Fabia MK2 2008 1.4 Petrol BXW) and then stopped for a couple of minutes. When I turned the engine back on, the PAS light came on and there was no PAS. I drove it few minutes and then I stopped and re-started the engine; the PAS worked fine.

In the following days, the PAS worked now and then (once every 20 tries), but always worked on a cold start. All of a sudden, yesterday it stopped working even on a cold start and no matter how many times I try, it seems to be dead now.

I've hooked up my VAG and this is the result:

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Chassis Type: 5J (5J - Skoda Fabia (2007 > 2010))
Scan: 01 02 03 08 09 15 16 17 19 25 37 44 46 55 56 76 77
 
VIN: TMBDC65J183049831   
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 03C-906-024-BXW.lbl
   Part No: 03C 906 024 B
   Component:  MARELLI 4HV      G 0896  
   Shop #: WSC 13765 790 00000
   VCID: 1D313FFFC74415F69F5


-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 6R0-907-37x-ABS80.lbl
   Part No SW: 6R0 907 379 C    HW: 6R0 907 379 C
   Component: ABS 8.0 front   H05 0002  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0002127
   Shop #: WSC 13765 790 00000
   VCID: 3E73D8736A826EEEA6F-5072

2 Faults Found:
01314 - Engine Control Module 
            013 - Check DTC Memory - Intermittent
             Freeze Frame:
                    Fault Status: 00101101
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 120
                    Mileage: 209705 km
                    Time Indication: 0

18265 - Load Signal 
            P1857 - 000 - Error Message from ECU - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 120
                    Mileage: 209705 km
                    Time Indication: 0


-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: Redir Fail!
   Part No: 5J0 907 044 A
   Component: CLIMAtronic SK25    0608  
   Shop #: WSC 00000 000 00000
   VCID: 285F1E2B9806C05EFC3-5000

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 6Qx-937-049-C.lbl
   Part No: 6Q1 937 049 F
   Component: 0000 BN-SG.         2S36  
   Coding: 25742
   Shop #: WSC 13765  
   VCID: 3E73D8733A826EEEA6F-5072

4 Faults Found:
01598 - Drive Battery Voltage 
            27-10 - Implausible Signal - Intermittent
01309 - Power Steering Control Module (J500) 
            49-00 - No Communications
01598 - Drive Battery Voltage 
            07-10 - Signal too Low - Intermittent
01304 - Radio 
            49-00 - No Communications

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 F
   Component: QA AIRBAG VW61 Q5Q6 0004  
   Coding: 20801
   Shop #: WSC 13765  
   VCID: 275D1D17C518CF26F59-5072

1 Fault Found:
00532 - Supply Voltage B+ 
            07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 5J0-920-xxx-17.clb
   Part No: 5J0 920 940 B
   Component: KOMBIINSTR.    V2824486  
   Coding: 19403
   Shop #: WSC 13765  
   VCID: 29591B2FD30CF956E3D-5000

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: 000E GATEWAY CAN    2S36  
   Coding: 00014
   Shop #: WSC 13765  
   VCID: F0EFB64BB056489EE43-5072

2 Faults Found:
01309 - Power Steering Control Module (J500) 
            49-00 - No Communications
01304 - Radio 
            49-00 - No Communications

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 5J0-920-xxx-25.clb
   Part No: 5J0 920 940 B
   Component: IMMOBILIZER    V2824486  
   Coding: 19403
   Shop #: WSC 13765  
   VCID: 29591B2FD30CF956E3D-5000
   TMBDC65J183049831     SKZ7Z0G4276574

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 6Q0-959-433.lbl
   Part No: 5J0 959 433 A
   Component: 03 Komfortgerát     0001  
   Coding: 00018
   Shop #: WSC 13765  
   VCID: 3169F34FFBDC81962BD-4A3A

1 Fault Found:
01135 - Interior Monitoring Sensors 
            36-00 - Open Circuit

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: None
   VCID: 55A167DFBFF48DB6975-5000

--------------------------------------------------------------------------------
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Address 01: DTCs cleared

 

 

I have tried clearing the DTCs with no success.

I have tried aligning the steering wheel (by locking it to the left and then to the right) and it only worked once although I think it was just a coincidence.

 

The battery is new (changed it myself in Jan 2021).

I have measured the batery and it's 13.98v when the engine is on.

I have checked the power steering fluid and topped it up.

 

I believe there is an issue with the wiring -- might have been cut or corroded. Another thing to mention is that I do have an issue with the sunroof and on heavy rains one of the rear tubes leaks inside the car -- the airbag cartridges on the rooftop were quite rusty when I took the top lining off.

Another thing I am going to try is to take out the connectors from the PAS pump and clean them.

 

Any ideas?

By no means an expert but the failure pattern sounds like when my PAS pump was on its way out (albeit on my mk2). It would generally work fine after a cold start but would fail soon after - everything else on the car ok. Found a decent quality replacement from local scrap and problem solved. 

Edited 23 March, 20215 yr by TSIspirit

Could be the pump, as mentioned. They are part electric, part hydraulic so rely on two things to work, not just fluid. A second hand unit might solve the issue if you are able to install it, but be sure to get a warranty on it as saving money can cost a fortune!

 

EDIT: Just seen something that mentioned the plugs on these can suffer corrosion so have a look and clean up the electrical contacts before binning the pump. 

Edited 23 March, 20215 yr by mrgf

Thanks both for your replies . Much appreciated.

 

I have managed to disconnect the connectors; will get some contact cleaner, try to clean it and then report back.

@mrgf what do you mean get a warranty? You mean buying a new one? or just get an used one with warranty? A new one is about 300-500GBP :-S... Found a few used ones on ebay that cost 60-100GBP

Tried clearing the contacts & then cleared all DTCs and error still persists... So I'll just replace the pump.

 

Does anyone know if every line needs to match? Seems to be indentical to mine but it read TD5 ES instead of JB1 LINE 2 PL... does that line matter as well?

 

I have attached a picture of my pump (IMG_1468.jpg, i.e. the one fitted) and a picture of the pump I'm looking to buy (I'm keen on this one as the seller looks pretty reputable and it comes with a 12month warranty)

Edited 23 March, 20215 yr by CptChix

You have a "load signal" and "battery voltage" low being logged, maybe check that the load wire is still 100% okay at the plug<>socket underneath the car near the engine<>gearbox joining point.

 

Having a slightly low battery voltage will never help any gross users of 12V power like the steering pump motor.

 

Edit:- being able to communicate with the power steering controller would be handy, maybe that will return after you sort out whatever is causing the low battery supply voltage.

Edited 23 March, 20215 yr by rum4mo

11 minutes ago, rum4mo said:

You have a "load signal" and "battery voltage" low being logged, maybe check that the load wire is still 100% okay at the plug<>socket underneath the car near the engine<>gearbox joining point.

 

Having a slightly low battery voltage will never help any gross users of 12V power like the steering pump motor.

 

Edit:- being able to communicate with the power steering controller would be handy, maybe that will return after you sort out whatever is causing the low battery supply voltage.

 

Thanks for your reply. I have cleared the DTCs and the Drive Voltage error didn't come up anymore. I've tested with the multimeter and it's 14.4v. I have also tested the plugs that go into the steering wheel pump and they do bring 14.4v. It's probably an older code (replaced battery couple of months ago).

 

Here's a more recent auto-scan.
 

Tuesday,23,March,2021,18:46:51:62939

Chassis Type: 5J (5J - Skoda Fabia (2007 > 2010))
Scan: 01 02 03 08 09 15 16 17 19 25 37 44 46 55 56 76 77
 
VIN: TMBDC65J183049831   
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 03C-906-024-BXW.lbl
   Part No: 03C 906 024 B
   Component:  MARELLI 4HV      G 0896  
   Shop #: WSC 13765 790 00000
   VCID: 1D313FFFC74415F69F5-5072

   Subsystem 1 - Part No: 03C 906 024 B
   Component:  MARELLI 4HV      G 0896

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 6R0-907-37x-ABS80.lbl
   Part No SW: 6R0 907 379 C    HW: 6R0 907 379 C
   Component: ABS 8.0 front   H05 0002  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0002127
   Shop #: WSC 13765 790 00000
   VCID: 3E73D8736A826EEEA6F-5000

2 Faults Found:
01314 - Engine Control Module 
            013 - Check DTC Memory - Intermittent
             Freeze Frame:
                    Fault Status: 00101101
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 120
                    Mileage: 209705 km
                    Time Indication: 0

18265 - Load Signal 
            P1857 - 000 - Error Message from ECU - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 120
                    Mileage: 209705 km
                    Time Indication: 0


-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: Redir Fail!
   Part No: 5J0 907 044 A
   Component: CLIMAtronic SK25    0608  
   Shop #: WSC 00000 000 00000
   VCID: 285F1E2B9806C05EFC3-5000

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 6Qx-937-049-C.lbl
   Part No: 6Q1 937 049 F
   Component: 0000 BN-SG.         2S36  
   Coding: 25742
   Shop #: WSC 13765  
   VCID: 3E73D8733A826EEEA6F-5000

2 Faults Found:
01304 - Radio 
            49-00 - No Communications
01309 - Power Steering Control Module (J500) 
            49-00 - No Communications

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 F
   Component: QA AIRBAG VW61 Q5Q6 0004  
   Coding: 20801
   Shop #: WSC 13765  
   VCID: 275D1D17C518CF26F59-50E6

1 Fault Found:
00532 - Supply Voltage B+ 
            07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 5J0-920-xxx-17.clb
   Part No: 5J0 920 940 B
   Component: KOMBIINSTR.    V2824486  
   Coding: 19403
   Shop #: WSC 13765  
   VCID: 29591B2FD30CF956E3D-5000

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: 000E GATEWAY CAN    2S36  
   Coding: 00014
   Shop #: WSC 13765  
   VCID: F0EFB64BB056489EE43-5000

2 Faults Found:
01304 - Radio 
            49-00 - No Communications
01309 - Power Steering Control Module (J500) 
            49-00 - No Communications

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 5J0-920-xxx-25.clb
   Part No: 5J0 920 940 B
   Component: IMMOBILIZER    V2824486  
   Coding: 19403
   Shop #: WSC 13765  
   VCID: 29591B2FD30CF956E3D-5000
   TMBDC65J183049831     SKZ7Z0G4276574

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 6Q0-959-433.lbl
   Part No: 5J0 959 433 A
   Component: 03 Komfortgerát     0001  
   Coding: 00018
   Shop #: WSC 13765  
   VCID: 3169F34FFBDC81962BD-4A3A

1 Fault Found:
01135 - Interior Monitoring Sensors 
            36-10 - Open Circuit - Intermittent

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: None
   VCID: 55A167DFBFF48DB6975-5000

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

End   ---------------------------------------------------------------------

 

I think you got what I meant about warranty, then. A trader will offer usually at least 30 days but often more. A private seller will sell without, probably, just say it is working and probably offer a refund if you find it does not but if it fails in a short space of time, unlucky!

 

I think I am correct in saying the fist line of code is the relevant part number. The rest might be batch codes, manufacture years/factory codes or other details that will help dealers find exact matches to parts for say, supply, manufacture faults, etc. Also, the same pumps are used by other VAG vehicles. I think I am also correct in saying the pump changed a little after 2009 and the later ones can be retro-fitted but they have less connectors so the spare plugs may have to be plugged up.