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Thread: Audi Q5 2.0 Tdi, reductant pump 1, open circiut

  1. #1
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    Audi Q5 2.0 Tdi, reductant pump 1, open circiut

    Checked relavent wiring up to control unit and found to be OK. No Is it possible for this pump to fail at this kilometer reading?

    Code:
    Wednesday,11,September,2019,11:49:13:48706
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
    VCDS Version: 19.6.1.0 (x64)  HEX-NET CB: 0.4508.4
    Data version: 20190529 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WAUZZZ8R4FA002533   License Plate: DBW 853 L
    Mileage: 66930km-41588mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 8R-AU48 (8R0)
    Scan: 01 02 03 05 08 09 15 16 17 19 42 44 46 52 53 56 62 69 6D 72
              77 AC
    
    VIN: WAUZZZ8R4FA002533   Mileage: 66930km-41588miles
    
    01-Engine -- Status: Malfunction 0010
    02-Auto Trans -- Status: OK 0000
    03-ABS Brakes -- Status: OK 0000
    04-Steering Angle -- Status: OK 0000
    05-Acc/Start Auth. -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    53-Parking Brake -- Status: OK 0000
    56-Radio -- Status: OK 0000
    62-Door, Rear Left -- Status: OK 0000
    69-Trailer -- Status: OK 0000
    6D-Trunk Elect. -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    77-Telephone -- Status: OK 0000
    AC-Reductant Control -- Status: Malfunction 0010
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CGLC)       Labels:. 03L-906-018-CGL.clb
       Part No SW: 03L 906 018 JN    HW: 03L 906 018 JL
       Component: R4 2,0L EDC   H25 2929  
       Revision: 45H25---    
       Coding: 2A254012243601080000
       Shop #: WSC 06208 000 00000
       ASAM Dataset: EV_ECM20TDI01103L906018JN 003003
       ROD: EV_ECM20TDI01103L906018JN.rod
       VCID: 7F4EE611E6433EB7E0-802A
    
    1 Fault Found:
    16928 - Control Circuit for Reductant Pump 1 
              P208A 00 [039] - Open Circuit
              Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 66934 km
                        Date: 2019.09.11
                        Time: 11:27:11
    
                        Engine speed: 0.00 /min
                        Normed load value: 0.0 %
                        Vehicle speed: 0 km/h
                        Coolant temperature: 67 °C
                        Intake air temperature: 38 °C
                        Ambient air pressure: 930 mbar
                        Voltage terminal 30: 12.000 V
                        Unlearning counter according OBD: 40
                        Outside air temperature: 28.0 °C
                        Pressure sensor for reducing agent: measured pressure: -25 hPa
                        Sensor for reducing agent tank temperature: temperature: 20.8 °C
                        Reducing agent pump: activation: 0.00 %
                        Sensor for reducing agent fill level: voltage: 3105.0 mV
    
    Readiness: 0 0 0 0 1 
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans (J217)       Labels:| 0B5-927-156.clb
       Part No SW: 8R1 927 156 J    HW: 0B5 927 156 K
       Component: 0B5 20 TDIRdW H02 0003  
       Revision: --H02---    
       Coding: 000001
       Shop #: WSC 06335 000 00000
       ASAM Dataset: EV_TCMDL501021 001015
       ROD: EV_TCMDL501021.rod
       VCID: 43C6AAE1CA2B9A57C4-8016
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (J104)       Labels:. 8R0-907-379-V2.clb
       Part No SW: 8R0 907 379 AP    HW: 8R0 907 379 AP
       Component: ESP8 quattro  H09 0020  
       Revision: --------    Serial number: --------------
       Coding: 21D54C01
       Shop #: WSC 06335 000 00000
       VCID: 0E504BD5D9E9273F1B-805A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
       Part No SW: 8K0 907 064 JG    HW: 8K0 907 064 JG
       Component: BCM2 2.0      H14 0650  
       Revision: 00002001    
       Coding: 01B54000000000000000
       Shop #: WSC 06335 000 00000
       VCID: 7EB01B15E94937BFEB-802A
    
       Subsystem 1 - Part No SW: 8K0 959 754 H    HW: 8K0 959 754 H
       Component: FBSAUDIB8 IDG  H71 0083 
       Serial number: 0514000070887007    
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J255)       Labels: None
       Part No SW: 8K2 820 043 BA    HW: 8K2 820 043 BA
       Component: KLIMA 3 ZONEN H04 0123  
       Revision: D0000000    Serial number: 01150520141293
       Coding: 342502E000
       Shop #: WSC 06335 000 00000
       VCID: 699A584980C7A0072E-803C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
       Part No SW: 8K0 907 063 DG    HW: 8K0 907 063 DG
       Component: BCM1 1.0      H16 0103  
       Revision: 07016001    Serial number: 00000818433701
       Coding: 2600C0108034AFC00081400000001D0D0F1D670827090201000008004401030100000024000000
       Shop #: WSC 06335 000 00000
       VCID: 77BE0E31C67306F7A8-8022
    
       Subsystem 1 - Part No SW: 8R2 955 119 A    HW: 8R2 955 119   Labels: 1KX-955-119.CLB
       Component: WWS416 140411  H12 0050 
       Serial number: 90243015140402125050
       Coding: 01DD13
    
       Subsystem 2 - Part No SW: 8U0 955 559 B    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
       Component: G397_RLFS  H06 0002 
       Serial number: 22645649            
       Coding: 02005C
    
       Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
       Component: E1 - LDS  H03 0031 
       Serial number: 00000000000605143838
    
       Subsystem 4 - Part No SW: 4H0 907 658     HW: 4H0 907 658 
       Component: AQ_Hum_Sensor  H03 0003 
       Serial number: B9088927000000000001
    
    1 Fault Found:
    02988 - Left-Hand/Right-Hand Traffic Switchover Active 
                000 - -
                 Freeze Frame:
                        Fault Status: 01100000
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 137
                        Mileage: 66579 km
                        Time Indication: 0
                        Date: 2019.07.05
                        Time: 15:11:51
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags (J234)       Labels:* 8R0-959-655.clb
       Part No SW: 8R0 959 655 G    HW: 8R0 959 655 G
       Component: AirbagVW-AU10 H48 0610  
       Serial number: 003JPDC0NH1R  
       Coding: 30473431313030303030554A305238523053
       Shop #: WSC 06335 000 00000
       ASAM Dataset: EV_AirbaAU10SMEAU416 002004
       ROD: EV_AirbaAU10SMEAU416.rod
       VCID: 48DCBDCDF30DB90F11-801C
    
       Crash sensor for side airbag: driver side: 
       Serial number: 6334MSME447C445CP
    
       Crash sensor for side airbag: front passenger side: 
       Serial number: 6344MSME447C4774N
    
       Crash sensor for side airbag: rear: driver side: 
       Serial number: 6352QSME10413C446
    
       Crash sensor for side airbag: rear: passenger side: 
       Serial number: 6362QSME303F2172B
    
       Crash sensor for front airbag: driver side: 
       Serial number: 63732SME2640046CX
    
       Crash sensor for front airbag: front passenger side: 
       Serial number: 63832SME1A410340N
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
       Part No SW: 8K0 953 568 Q    HW: 8K0 953 568 Q
       Component: Lenks.Modul   H03 0003  
       Revision: C0062331    Serial number: 90862NEH000FV 
       Coding: 000037
       Shop #: WSC 06335 000 00000
       VCID: 48DCBDCDFB0DB90F11-801C
    
       Component: E221 - MFL  H03 0004 
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:. 8R0-920-xxx-17.clb
       Part No SW: 8R0 920 930 T    HW: 8R0 920 930 T
       Component: KOMBIINSTR.   H35 0564  
       Revision: 00200000    Serial number: ZD433AH5F     
       Coding: 3386220002010008010000
       Shop #: WSC 06335 000 00000
       VCID: 45C2B4F9CC1FA467EA-8010
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
       Part No SW: 8R0 907 468 L    HW: 8R0 907 468 A
       Component: GW-BEM 5CAN   H11 0060  
       Revision: 1V090029    Serial number: 2941V144300740
       Coding: 80CF07FF00
       Shop #: WSC 06335 000 00000
       VCID: 48DCBDCDFB0DB90F11-801C
    
       Subsystem 1 - Part No SW: 8R0 915 181 C    HW: 8R0 915 181 C
       Component: J367-BDMHella  H07 8043 
       Serial number: 5897323203          
    
       Subsystem 2 - Part No SW: 8K0 959 663 B    HW: 8K0 959 663 B
       Component: J532_DCDCStab  H05 0006 
       Serial number: 14134001326011200410
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
       Part No SW: 8K0 959 793 R    HW: 8K0 959 793 P
       Component: TSG FA        H02 0510  
       Revision:             Serial number: 0000102500668 
       Coding: 011D02205C01440004
       Shop #: WSC 06335 000 00000
       VCID: 4FEE96D11E636E3750-801A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist (J500)       Labels:| 8K0-909-144.clb
       Part No SW: 8R0 909 144 G    HW: 8R0 909 144 B
       Component: RCEPS         H40 0508  
       Revision: 00001000    Serial number: 0003547796
       Coding: 100000000001
       Shop #: WSC 06334 000 00000
       ASAM Dataset: EV_RCEPSAU48X 008015
       ROD: EV_RCEPSAU48X_008.rod
       VCID: 3C34D11DB7D5E5AF85-8068
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
       Part No SW: 8K0 907 064 JG    HW: 8K0 907 064 JG
       Component: BCM2 2.0      H14 0650  
       Revision: 00002001    Serial number: 0335538290    
       Coding: 013A0622A0B930808420053680040047
       Shop #: WSC 06335 000 00000
       VCID: 7EB01B15E94937BFEB-802A
    
       Subsystem 1 - Part No: 8K0 951 177 
       Component: DWA-Sensor  H02 0040 
    
       Subsystem 2 - Part No: 1K0 951 605 C
       Component: LIN BACKUP HO  H05 1501 
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
       Part No SW: 8K0 959 792 R    HW: 8K0 959 792 P
       Component: TSG BF        H02 0510  
       Revision:             Serial number: 0000102391535 
       Coding: 011D02205E01440004
       Shop #: WSC 06335 000 00000
       VCID: 4ED08BD51969673F5B-801A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
       Part No SW: 8K0 907 801 N    HW: 8K0 907 801 J
       Component: EPB-4         H02 0005  
       Revision: --------    Serial number: 00000001481173
       ASAM Dataset: EV_ParkiBrake 001028
       ROD: EV_ParkiBrake_AU48.rod
       VCID: 3A38D705BDE1DB9F97-806E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio (J503)       Labels:. 8Tx-035-1xx-56.clb
       Part No SW: 8R2 035 186 N    HW: 8R2 035 186 N
       Component: Concert3      H05 0470  
       Revision: 00000003    Serial number: AUZ5Z6N2041742
       Coding: 0500048204058D00035B071000
       Shop #: WSC 06335 000 00000
       VCID: 41CAA0E9D8378847D6-8014
    
       Subsystem 1 - Part No SW: 8T0 919 603 G    HW: 8T0 919 603 G
       Component: Display  
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
       Part No SW: 8K0 959 795 G    HW: 8K0 959 795 D
       Component: TSG HL        H01 0510  
       Revision:             Serial number: 0000103281719 
       Coding: 010C02204001240004
       Shop #: WSC 06335 000 00000
       VCID: 46C0B3F5F119AF7FE3-8012
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 69: Trailer (J345)       Labels:. 8K0-907-383.clb
       Part No SW: 8K0 907 383 D    HW: 8K0 907 383 D
       Component: Anhaenger     H09 0100  
       Revision: 1G001001    Serial number: 00008200328159
       Coding: 0109080000000000
       Shop #: WSC 25397 000 00000
       VCID: 3522C4399CFF34E77A-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 6D: Trunk Elect. (J605)       Labels: Redir Fail!
       Part No SW: 8R0 827 851 D    HW: 8R0 827 851 D
       Component: J605  Master  H53 0330  
       Revision: --------    Serial number: 8R0827851D    
       VCID: 3D32DC19A4CFECA7B2-8068
    
       Subsystem 1 - Part No SW: 8R0 827 852 D    HW: 8R0 827 852 D
       Component: J756  Slave  H53 0330 
       Serial number: 8R0827852D          
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-795.clb
       Part No SW: 8K0 959 795 G    HW: 8K0 959 795 D
       Component: TSG HR        H01 0510  
       Revision:             Serial number: 0000103281764 
       Coding: 010C02204001240004
       Shop #: WSC 06335 000 00000
       VCID: 46C0B3F5F119AF7FE3-8012
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 77: Telephone        Labels: 8P0-862-335.lbl
       Part No SW: 8T0 862 335 F    HW: 8T0 862 335 E
       Component: FSE_256x BT     H45 0660  
       Revision: 00000000    Serial number: 00000005770060
       Coding: 0010390
       Shop #: WSC 06335 000 00000
       VCID: 3D32DC1964CFECA7B2-8068
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address AC: Reductant Control (J880)       Labels: 4G0-907-355.clb
       Part No SW: 4H0 907 355 D    HW: 4G0 907 355 B
       Component: SCR-Stg-G2    H10 0012  
       Revision: 00000000    Serial number: 141191565
       ASAM Dataset: EV_RDCMA00100 008040
       ROD: EV_RDCMA00100_008.rod
       VCID: 2D12EC597CAF7C2702-8078
    
    1 Fault Found:
    196867 - Control Circuit for Reductant Pump 1 
              P208A 00 [009] - Open Circuit
              Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 4
                        Reset counter: 140
                        Mileage: 66934 km
                        Date: 2019.09.11
                        Time: 11:27:07
    
                        Voltage terminal 30A: 12.0 V
                        Voltage terminal 30B: 12.0 V
                        Voltage terminal 87: 12.0 V
                        Reductant_pwm_duty_cycle: 0.0 %
                        Reductant_speed_pump_motor: 0 /min
                        Reductant_pump_output_stage_temperature: 29 °C
                        Reductant_heater_control_1_output_stage_temperature: 29 °C
                        Reductant_tank_temperature_sensor_actual_value: 21 °C
                        Reductant_temperature_ambient: 23 °C
                        Reductant_current_pump_motor_A: 0.0 A
                        Reductant_current_pump_motor_B: 0.0 A
                        Reductant_current_pump_motor_C: 0.0 A
                        Reductant_heater_control_1_actual_power_value: 0.0 A
                        Reductant_heater_control_2_actual_power_value: 0.0 A
                        Reductant_transfer_pump_current: 0.0 A
                        Reductant_pressure_sensor_actual_value: -50 mbar
                        Reductant_voltage_sensor_supply: 5.0 V
                        Reductant_voltage_sensor_gnd: 0.0 V
                        Reductant_level_sensor_actual_raw_voltage: 3.1 V
                        KL15 on: On
                        DIAG_Opt_H: On
                        Tank_L_SC: OFF
                        Lines_L_SC: OFF
                        DIAG_Lines_H: On
                        DIAG_Lines_L: On
                        DIAG_Tank_H: On
                        DIAG_Tank_L: On
                        MO_SCR_Dosierpumpe_Zustand: 00
                        MO_SCR_Tankheizung: OFF
                        MO_SCR_Leitungsheizung: OFF
                        MO_SCR_Transferpumpe: OFF
                        reserviert 1 0: On
                        Reserviert 2: OFF
                        Can signal MO_SCR_Dosierpumpe_Soll: 0.0 %
    
    
    End----------(Elapsed Time: 01:40, VBatt start/end: 12.2V/12.2V)-----------
    Last edited by Uwe; 09-11-2019 at 10:52 AM. Reason: CODE tags

  2. #2
    NostraJackAss Jack@European_Parts's Avatar
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    Voltage terminal 30: 12.000 V
    Why are voltages so low?

    Explain how you qualified current and wiring?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
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    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  3. #3
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    As per Elsa diagram wiring checked. Fault code cannot be erased, comes back after start up. Will connect battery charger and rerun scan and post.

  4. #4
    NostraJackAss Jack@European_Parts's Avatar
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    Either pump is faulty, wiring or ECU, did you simulate sensors/pump with decade box to verify wiring & ECU will vacate the DTC & did you measure resistance of pump?

    FUSES?
    Ground connections?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  5. #5
    Verified VCDS User
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    Also think pump or ECU? Don’t have a decade box. Not allowed to buy any type of equipment from VW/Audi in South Africa. Will need to source equipment overseas and import. No function on VCDS to activate pump. The contr unit is part of the pump (pump) inside reductant tank! Will have to remove the contr unit/pump from the tank (draining tank), and then disconnect pump to check resistance.

  6. #6
    NostraJackAss Jack@European_Parts's Avatar
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    A decade box is just a variable resistor/capacitance etc. and can be bought as a generic tool, it doesn't have to be bought from VAG.

    Example.......not endorsed!

    https://www.ebay.com/itm/323759943469

    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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