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Thread: 2014 2.0TDi Crafter Auxiliary Water Pump / Limp Home

  1. #1
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    2014 2.0TDi Crafter Auxiliary Water Pump / Limp Home

    I've got fault code P261A 00, read with VCDS, plus the coil light flashing and it's in limp home mode. Checked everything to the auxiliary pump and everything is ok.
    On starting the engine you can feel the pump running. But it stops after around 3 - 4 seconds. The relay opens after maybe 3 to 4 seconds.
    At this point I get the coil and eml flashing and Stop Start Error displayed.
    It's in constant limp home mode.
    I've monitored the voltage at the pump during the few seconds the pump runs. It's healthy at 13V+.
    The auxiliary water pump was faulty (open circuit) I've replaced it with a new Bosch pump.
    I also had an intermittent fault logged relating to the relay controlling the pump. "Intermittent open circuit". Since clearing this it hasn't returned.
    This fault started just after it had it's MOT. I'm wondering if the full throttle smoke test has done something?
    But I'm now baffled. No other codes are logged.
    I'm a novice with VCDS but I've tried to check the obvious stuff like:
    Ambient tempurate.
    Atmospheric pressure
    Volts
    Intake tempurature etc.
    Please save me from taking it to the dealer!

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Please post an Auto-Scan for context.

    -Uwe-
    Lock-down of sick people: Quarantine
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  3. #3
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    Code:
    Tuesday,07,July,2020,11:43:15:34525
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
    VCDS Version: 20.4.1.0 (x64)
    Data version: 20200331 DS317.0
    www.Ross-Tech.com
    
    
    VIN: WV1ZZZ2EZF6023526   License Plate: 
    
    
    Chassis Type: 2E-N/A (2E - VW Crafter Panel Van (LT3 / 2006 > 2016))
    Scan: 01 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9E 9F A0 A1 A2 A3
              B0 B1 B2 B3 B4 B5 B6 C1
     
    VIN: WV1ZZZ2EZF6023526   
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CKTB)       Labels:. 03L-906-012-CKT.clb
       Part No SW: 03L 906 012 J    HW: 03L 906 012 A
       Component: R4 2.0l TDI   H26 9977  
       Revision: 72H26---    Serial number: VWXDZ0N1047149
       Coding: 0119401020440D080000
       Shop #: WSC 131071 1023 2097151
       ASAM Dataset: EV_ECM20TDI01103L906012J 002016
       ROD: EV_ECM20TDI01103L906012BS_002.rod
       VCID: 2B52B95E4283EDDE8E-807E
    
    1 Fault Found:
    4875 - Coolant Pump 2 
              P261A 00 [175] - Open circuit
              MIL ON - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 87454 km
                        Date: 2047.15.31
                        Time: 31:63:63
    
                        Engine speed: 0.00 /min
                        Normed load value: 0.0 %
                        Vehicle speed: 0 km/h
                        Coolant temperature: 21 C
                        Intake air temperature: 18 C
                        Ambient air pressure: 980 mbar
                        Voltage terminal 30: 12.460 V
                        Unlearning counter according OBD: 40
                        Coolant temperature at radiator outlet: actual value: 17.4 C
                        exh.gas recirc.: shut-off conditions-Bits 0-7: 0
                        exh.gas recirc.: shut-off conditions-Bits 0-7: 0
                        exh.gas recirc.: shut-off conditions-Bits 0-7: 0
                        exh.gas recirc.: shut-off conditions-Bits 0-7: 5
                        EGR cooling function: status-Bits 0-7: 0
                        exh.gas recirc. (EGR) cooler pump: specified value: 0.00 %
                        EGR Vacuum Regulator Solen.val.: activation: 100.00 %
                        Exh.gas temp.sen 1: 29.4 C
    
    Readiness: 1 1 0 0 1 
    
    -------------------------------------------------------------------------------
    Address 93: LT3 Immo        Labels: 2E0-905-865-93.clb
       Part No SW: 2E0 905 843 C    HW: 906 900 590 2
       Component: IMMO          1231  1322  
       Revision: 00231000    Serial number: VWXDZ0N1047149
       Shop #: WSC 00000 000 00000
       VCID: 275A456E966BC9BE6A-8072
    
    1 Fault Found:
    01176 - Key 
                008 - Implausible Signal - Intermittent
    
    -------------------------------------------------------------------------------
    Address 94: LT3 Airbag 
       Part No HW: 9069005701
       Shop #: WSC 00117 555 00000
       ASAM Dataset: 3 3332
       ROD: CRFT_AB_3_3331.rod (*)
       VCID: 55A63FA634878B2E08-8000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 96: LT3 Instruments 
       Part No SW: 9069026601    HW: 9069014501
       Shop #: WSC 00000 000 00000
       ASAM Dataset: 32 1056
       ROD: CRFT_KOMBI_32_1056.rod
       VCID: 071A25EEBEABE9BE4A-8052
    
    1 Fault Found:
    9100 - Drivetrain CAN: No communication 
                Test Complete - Stored
    
    -------------------------------------------------------------------------------
    Address 99: LT3 Ign. Switch 
       Part No HW: 9069005902
       Shop #: WSC 00000 000 00000
       ASAM Dataset: 67 259
       ROD: CRFT_EZS_67_259.rod
       VCID: 55A63FA634878B2E08-8000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 9A: LT3 Central Locks        Labels: 2E0-905-865-9A.clb
       Part No SW: 2E0 905 843 C    HW: 906 900 590 2
       Component: HF-FFB        1231  1322  
       Revision: 00231000    Serial number: 12345678901234
       Shop #: WSC 00000 000 00000
       VCID: 275A456E966BC9BE6A-8072
    
    1 Fault Found:
    00171 - Key 1 not learned 
                000 - - - Intermittent
    
    -------------------------------------------------------------------------------
    Address 9B: LT3 Driver Door 
       Part No HW: 9069000501
       Shop #: WSC 00000 000 00000
       ASAM Dataset: 33 263
       ROD: CRFT_FTUHR_33_263.rod
       VCID: 55A63FA634878B2E08-8000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address B4: LT3 Central Elec. 
       Part No SW: 9069024301    HW: 9069014500
       Shop #: WSC 00000 000 00000
       ASAM Dataset: 33 852
       ROD: CRFT_EZE_33_851.rod (*)
       VCID: 020C34FA9589CC961D-8056
    
    2 Faults Found:
    90C1 - Emergency light activated; rotary light switch: implausible condition 
                Test Complete - Stored
    90C2 - Emergency light activated; for rotary light switch evaluation: voltage not correct 
                Test Complete - Stored
    
    -------------------------------------------------------------------------------
    Address B6: LT3 Steering Wheel 
       Part No SW: 9065402545    HW: 9065402545
       Shop #: WSC 00000 000 00000
       ASAM Dataset: 72 257
       ROD: CRFT_SML_72_257.rod (*)
       VCID: 081826D2B3B5E6C643-805C
    
    No fault code found.
    
    End-------------------------(Elapsed Time: 02:32)--------------------------

  4. #4
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    Auto Scan Results as Requested

    It's picked some additional codes to do with
    The instrument cluster
    Key and
    Emergency light activated which I hadn't found until I did the auto scan. But I don't think they're related to my limp home, stop start, auxilary water pump issue are they?
    Last edited by Ed463; 07-07-2020 at 07:04 AM.

  5. #5
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    So I've been trying to figure out what the 90C1 and 90C2 codes mean and I haven't got very far. Could they be related to the Stop Start Error message and responsible for putting it into limp home mode?
    Thanks in advance for any help. It's been off the road for 3 weeks+ now:-(

  6. #6
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    Quote Originally Posted by Ed463 View Post
    So I've been trying to figure out what the 90C1 and 90C2 codes mean and I haven't got very far. Could they be related to the Stop Start Error message and responsible for putting it into limp home mode?
    I doubt it. That appears to be an issue with (or related to) your headlight switch.

    -Uwe-
    Lock-down of sick people: Quarantine
    Lock-down of healthy people: Tyranny

  7. #7
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    Just an update. The pump runs fine with the engine running and continues to run for a short time after the engine is turned off.

    BUT. The code won't re set. The coil light flashes and the eml is on and its still in limp home mode.

    The replacement pump is a First Line, not genuine VW but OEM quality.

    Does the new pump need to be "coded" so that the ecu recognises it?

    Any suggestions gratefully recieved. It's beyond a joke now.

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