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Thread: 9645 - Reductant - P20E8 00 [101] - Pressure too Low

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    9645 - Reductant - P20E8 00 [101] - Pressure too Low

    Hi guys,

    This error came up while I was driving home from work a few days ago. It basically said that there was a system fault with the AdBlue and that I had 650 miles before no restart. I wasn't that far from home so I managed to get home without a problem. Then, when I started the car the next day, the error didn't come back up. The error came on again when I was driving later on. I read online that I should top the AdBlue to the brim and see if the error comes back on. So I filled the tank up and the error is still present. After doing a scan the faults below have been identified.

    I have read on other posts that a replacement AdBlue pump fixes the issue. I was just hoping to get some clarification before going down that road.

    My car is a 2014 Audi A6 C7 2.0 Ultra with 160+k miles.

    Any help would be much appreciated.


    Code:
    Friday,29,May,2020,10:53:51:46370
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 20.4.1.0 (x64)  HEX-V2 CB: 0.4508.4
    Data version: 20200331 DS317.0
    www.Ross-Tech.com
    
    
    VIN: WAUZZZ4G9EN186797   License Plate: 
    Mileage: 262130km-162880mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 4G-AU57 (4G0)
    Scan: 01 03 05 08 09 10 15 16 17 19 3B 42 44 46 52 53 55 5F 62 6D
              72 AC
    
    VIN: WAUZZZ4G9EN186797   Mileage: 262130km-162880miles
    
    01-Engine -- Status: Malfunction 0010
    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: OK 0000
    10-Park/Steer Assist -- Status: OK 0000
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    3B-Sensor Elect. -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: Malfunction 0010
    52-Door Elect, Pass. -- Status: OK 0000
    53-Parking Brake -- Status: OK 0000
    55-Headlight Range -- Status: OK 0000
    5F-Information Electr. -- Status: Malfunction 0010
    62-Door, Rear Left -- Status: OK 0000
    6D-Trunk Elect. -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    AC-Reductant Control -- Status: Malfunction 0010
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CNHA)       Labels:. 04L-907-309-V1.clb
       Part No SW: 04L 906 021 FE    HW: 04L 907 309 
       Component: R4 2,0L EDC   H23 7709  
       Revision: 85H23---    
       Coding: 12194012242401080000
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_ECM20TDI01104L906021FE 001006
       ROD: EV_ECM20TDI01104L906021FE_001.rod
       VCID: 6D8734E61D1AAC4388D-8038
    
    2 Faults Found:
    16931 - Control Circuit for Reductant Heating 1 
              P20B9 00 [036] - Open Circuit
              Intermittent - Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 2
                        Mileage: 262048 km
                        Date: 2020.05.28
                        Time: 23:46:36
    
                        Engine speed: 722.00 /min
                        Normed load value: 56.9 %
                        Vehicle speed: 0 km/h
                        Coolant temperature: 59 °C
                        Intake air temperature: 56 °C
                        Ambient air pressure: 1010 mbar
                        Voltage terminal 30: 13.560 V
                        Unlearning counter according OBD: 40
                        Extern.temp.sens.1 bank 1: raw value: 23.0 °C
                        Particle filter outlet temp.sens.1 bank 1: raw value: 41.2 °C
                        Sensor for reducing agent tank temperature: temperature: 24.7 °C
                        Heating circuit 1 for reducing agent metering: activation-Bits 0-7: 0
                        Heating circuit 1 for reducing agent metering: activation-Bits 0-7: 0
                        Sensor for reducing agent fill level: voltage: 2860.0 mV
    
    9645 - Reductant 
              P20E8 00 [101] - Pressure too Low
              Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 262050 km
                        Date: 2020.05.28
                        Time: 23:50:06
    
                        Engine speed: 1208.00 /min
                        Normed load value: 29.4 %
                        Vehicle speed: 44 km/h
                        Coolant temperature: 76 °C
                        Intake air temperature: 55 °C
                        Ambient air pressure: 1010 mbar
                        Voltage terminal 30: 14.260 V
                        Unlearning counter according OBD: 40
                        Extern.temp.sens.1 bank 1: raw value: 17.5 °C
                        Pressure sensor for reducing agent: measured pressure: -500 hPa
                        Sensor for reducing agent tank temperature: temperature: 25.4 °C
                        Reducing agent pump: activation: 50.00 %
                        Sensor for reducing agent fill level: voltage: 3035.0 mV
    
    Readiness: 0 0 0 0 1 
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (J104)       Labels:. 4G0-907-379-V1.clb
       Part No SW: 4G0 907 379 L    HW: 4G0 907 379 L
       Component: ESP PREMIUM   H09 0450  
       Revision: --------    Serial number: --------------
       Coding: 06A09F016005F9809B00
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_ESPPremiAU57X 004039
       ROD: EV_ESPPremiAU57X_004_AU57.rod
       VCID: 3A2DCFBA1CD4CBFB5DF-806E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
       Part No SW: 4H0 907 064 FN    HW: 4H0 907 064 EN
       Component: BCM2 2.0      H36 0551  
       Revision: 00002001    
       Coding: 03B93046000000000000
       Shop #: WSC 02391 785 00200
       VCID: 7AAD0FBA5CD40BFB1DF-802E
    
       Subsystem 2 - Part No SW: 4H0 905 852 C    HW: 4H0 905 852 C
       Component: J764 ELV MLB  H40 0046 
       Serial number: 0214000131000005    
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J255)       Labels:| 4G0-820-043-2Z.clb
       Part No SW: 4G0 820 043 BA    HW: 4G0 820 043 BA
       Component: KLIMA 2 ZONEN H14 0096  
       Serial number: 11071400110164
       Coding: 3422090821
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_AirCondiBasisUDS 004002
       ROD: EV_AirCondiBasisUDS_004.rod
       VCID: 5F9B5E2EE7B6CED30A1-800A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 4H0-907-063-V1.clb
       Part No SW: 4H0 907 063 CE    HW: 4H0 907 063 E
       Component: BCM1 2.0      H12 0130  
       Revision: 19012002    Serial number: 00000001557965
       Coding: 2600201040349F600481008000001D0C0F9D870827090201000004606100
       Shop #: WSC 02391 785 00200
       VCID: 6D8734E61D9AAC4388D-8038
    
       Subsystem 1 - Part No SW: 4G2 955 119     HW: 4G8 955 119 A  Labels: 1KX-955-119.CLB
       Component: WWS57X 140625  H37 0080 
       Serial number:         140707090428
       Coding: 0045F7
    
       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: 22905820            
       Coding: 02006D
    
       Subsystem 3 - Part No SW: 4G0 941 531 BE    HW: 4G0 941 531 BE
       Component: E1 - LDS  H07 0044 
       Serial number: 09 07 2014  00000925
    
       Subsystem 4 - Part No SW: 4G0 907 658 A    HW: 4G0 907 658 A
       Component: Humidity_Sens  H03 0002 
       Serial number: B959CA37000000000001
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 10: Park/Steer Assist (J446)       Labels:| 4H0-919-475-7X2.clb
       Part No SW: 4H0 919 475 AA    HW: 4H0 919 475 AG
       Component: PARKHILFE ACC H01 0083  
       Revision: 11001001    Serial number: 61061420200637
       Coding: 08C208
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_EPHVA18AU57X0000 004009
       ROD: EV_EPHVA18AU57X0000_004.rod
       VCID: 71BF2896012248A3AC5-8024
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags (J234)       Labels:* 4H0-959-655.clb
       Part No SW: 4H0 959 655 C    HW: 4H0 959 655 C
       Component: Airbag10.43   H43 0040  
       Revision: --------    Serial number: 003JG00JNN9Q
       Coding: 3032343631324E303235554A305234473053
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_AirbaAU10BPAAU64X 001014
       ROD: EV_AirbaAU10BPAAU64X_VW51.rod
       VCID: 3635DB8A28CC2F9BB97-8062
    
       Crash sensor for side airbag: driver side: 
       Serial number: 3575HRB405F2MKOU91A2
    
       Crash sensor for side airbag: front passenger side: 
       Serial number: 3585HRB400C50RHSIOMI
    
       Crash sensor for side airbag: rear: driver side: 
       Serial number: 3515JRB400C52M10IHAX
    
       Crash sensor for side airbag: rear: passenger side: 
       Serial number: 3525JRB400852M10K8KX
    
       Crash sensor for front airbag: driver side: 
       Serial number: 3554VRB401652LJSN92Y
    
       Crash sensor for front airbag: front passenger side: 
       Serial number: 3564VRB400E52LJSNH05
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel (J527)       Labels:. 4H0-953-568.clb
       Part No SW: 4G0 953 568 A    HW: 4G0 953 568 A
       Component: Lenks.Modul   H05 0201  
       Revision: 00000000    Serial number: 20140717000347
       Coding: 000015
       Shop #: WSC 02391 785 00200
       VCID: 3039ED92CA2801ABE3B-8064
    
       Subsystem 1 - Part No SW: 4G0 951 528 C    HW: 4G0 951 528 C
       Component: E221 - MFL  H08 0010 
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:| 4H0-920-xxx-17.clb-SRI1
       Part No SW: 4G8 920 983 C    HW: 4G8 920 983 C
       Component: TDieGb        H54 0519  
       Revision: 27222219    Serial number: 658111214MT1000
       Coding: 33AD12000B412600010000
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_RBD4K 004046
       ROD: EV_RBD4K_AU57.rod
       VCID: 3537DC8635CA2483B0D-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway (J533)       Labels:* None
       Part No SW: 4G0 907 468 AD    HW: 4G0 907 468 AC
       Component: J533--Gateway H13 0050  
       Revision: --------    Serial number: 00000001480129
       Coding: 00CD074400
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_GatewPkoUDS 001019
       ROD: EV_GatewPkoUDS_001_AU57.rod
       VCID: 72BD279A042473BB55F-8026
    
       Battery Monitoring Control Module: 
       Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181 
       Component: J367-BDMHella  H03 8041 
       Serial number: 1331113903          
    
       Voltage stabilizer: 
       Subsystem 2 - Part No SW: 8K0 959 663 D    HW: 8K0 959 663 
       Component: J532_DCDCStab  H23 0021 
       Serial number: 14051400000000000410
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 3B: Sensor Elect. (J849)       Labels: 4G0-907-637.clb
       Part No SW: 4G0 907 637 H    HW: 4G0 907 637 D
       Component: SARA 3D       H03 0056  
       Revision: --------    Serial number: EJ1BPA720B6V8G
       Shop #: WSC 00000 000 00000
       ASAM Dataset: EV_SARA2 005012
       ROD: EV_SARA2.rod
       VCID: 3333E29E3BBE3AB39E9-8066
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver (J386)       Labels:. 4H0-959-793.clb
       Part No SW: 4G8 959 793 J    HW: 4G8 959 793 G
       Component: TSG FA        H03 0507  
       Revision: --------    Serial number: --------------
       Coding: 011C16004001620002080002
       Shop #: WSC 02391 785 00200
       VCID: 47CBA64E5FA6A613D21-8012
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist (J500)       Labels:| 4G0-909-144.clb
       Part No SW: 4G0 909 144 M    HW: 4G0 909 144 G
       Component: RCEPS         H41 0011  
       Revision: 00001000    Serial number: 0016774951
       Coding: 101000010000
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_RCEPS 009010
       ROD: EV_RCEPS_009.rod
       VCID: 3333E29E3BBE3AB39E9-8066
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv. (J393)       Labels:. 4H0-907-064-46.clb
       Part No SW: 4H0 907 064 FN    HW: 4H0 907 064 EN
       Component: BCM2 2.0      H36 0551  
       Revision: 00002001    Serial number: 0341753728    
       Coding: 013B0622A0B930408320090400010F470000000000000000000000000000
       Shop #: WSC 02391 785 00200
       VCID: 7AAD0FBA5CD40BFB1DF-802E
    
       Subsystem 1 - Part No: 4G0 951 177 
       Component: DWA-Sensor  H01 0010 
    
       Subsystem 2 - Part No: 1K0 951 605 C
       Component: LIN BACKUP HO  H05 1501 
    
    2 Faults Found:
    02615 - Fuel Tank Cap; Lock 
                009 - Open or Short to Ground
                 Freeze Frame:
                        Fault Status: 01101001
                        Fault Priority: 2
                        Fault Frequency: 2
                        Reset counter: 193
                        Mileage: 259501 km
                        Time Indication: 0
                        Date: 2020.04.23
                        Time: 16:42:19
    
    02616 - Fuel Tank Cap; Unlock 
                009 - Open or Short to Ground
                 Freeze Frame:
                        Fault Status: 01101001
                        Fault Priority: 2
                        Fault Frequency: 3
                        Reset counter: 224
                        Mileage: 259501 km
                        Time Indication: 0
                        Date: 2020.04.23
                        Time: 20:33:53
    
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass. (J387)       Labels:. 4H0-959-792.clb
       Part No SW: 4G8 959 792 J    HW: 4G8 959 792 G
       Component: TSG BF        H03 0507  
       Revision: --------    Serial number: --------------
       Coding: 011C16004401620002080002
       Shop #: WSC 02391 785 00200
       VCID: 46D5AB4A58ACBF1B297-8012
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 53: Parking Brake (----)       Labels: 4H0-907-801.clb
       Part No SW: 4H0 907 801 H    HW: 4H0 907 801 A
       Component: EPB-4         H04 0015  
       Revision: --------    Serial number: 00000001143406
       ASAM Dataset: EV_ParkiBrake 001028
       ROD: EV_ParkiBrake_VW51.rod
       VCID: 2D07F4E6DD9A6C43C8D-8078
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 55: Headlight Range (J431)       Labels:| 8X0-907-357.clb
       Part No SW: 4H0 907 357 B    HW: 4H0 907 357 B
       Component: ....LWR12.... H02 0010  
       Serial number: 140715-0002-122
       Coding: 112296101000A300
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_HeadlRegulBasic 005001
       ROD: EV_HeadlRegulBasic.rod
       VCID: 2D07F4E6DD9A6C43C8D-8078
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 5F: Information Electr. (J794)       Labels: None
       Part No SW: 4G0 035 192 H    HW: 4G0 035 192 F
       Component: RMC Nav Plus  H55 0801  
       Coding: 0101010101415B47082B060301010000010000
       Shop #: WSC 02391 785 00200
       VCID: 270B06CEFFE64613321-8072
    
       Subsystem 1 - Part No: 8X0 919 884 G
       Component: P24-50-13.06  0001 
    
       Subsystem 2 - Part No SW: 4G0 919 603 B    HW: 4G0 919 603 B
       Component: DU6 Basic  H43 0084 
       Serial number: 9464G$0E2670176     
    
       Subsystem 3 - Part No SW: 4G2 919 710 B    HW: 4G2 919 710 B
       Component: E380 BDT C7  H11 0204 
       Serial number: 90349NGG000BT       
    
    1 Fault Found:
    02444 - Disk Drive Load / Eject Malfunction 
                000 - - - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 253
                        Time Indication: 0
    
                 Freeze Frame:
                        ON Time: 5417 h
    
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left (J388)       Labels:. 4H0-959-795.clb
       Part No SW: 4G8 959 795 J    HW: 4G8 959 795 G
       Component: TSG HL        H03 0507  
       Revision: --------    Serial number: --------------
       Coding: 010814004001620002080002
       Shop #: WSC 02391 785 00200
       VCID: 49CFA07649B25063C45-801C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 6D: Trunk Elect. (----)       Labels:* Redir Fail!
       Part No SW: 4G9 959 107 B    HW: 4G9 959 107 A
       Component: HDSG-Modul    H03 0143  
       Revision: 14003001    Serial number: 191400929
       Coding: 097205C010
       Shop #: WSC 02391 785 00200
       ASAM Dataset: EV_HDSGAu572 001022
       ROD: EV_HDSGAu571.rod
       VCID: 3537DC8635CA2483B0D-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right (J389)       Labels:. 4H0-959-795.clb
       Part No SW: 4G8 959 795 J    HW: 4G8 959 795 G
       Component: TSG HR        H03 0507  
       Revision: --------    Serial number: --------------
       Coding: 010814004001620002080002
       Shop #: WSC 02391 785 00200
       VCID: 49CFA07649B25063C45-801C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address AC: Reductant Control (J880)       Labels: 4G0-907-355.clb
       Part No SW: 4G0 907 355 C    HW: 4G0 907 355 B
       Component: SCR-Stg-G2    H10 0010  
       Revision: 00000000    Serial number: 141841034
       ASAM Dataset: EV_RDCMA00100 008040
       ROD: EV_RDCMA00100.rod
       VCID: 2B03FAFEE38E6273D69-807E
    
    1 Fault Found:
    262403 - Control Circuit for Reductant Heating 1 
              P20B9 00 [008] - Open Circuit
              Intermittent - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 3
                        Reset counter: 13
    
                        Voltage terminal 30A: 12.5 V
                        Voltage terminal 30B: 12.5 V
                        Voltage terminal 87: 12.3 V
                        Reductant_pwm_duty_cycle: 0.0 %
                        Reductant_speed_pump_motor: 0 /min
                        Reductant_pump_output_stage_temperature: 21 °C
                        Reductant_heater_control_1_output_stage_temperature: 21 °C
                        Reductant_tank_temperature_sensor_actual_value: 24 °C
                        Reductant_temperature_ambient: 77 °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: -500 mbar
                        Reductant_voltage_sensor_supply: 5.0 V
                        Reductant_voltage_sensor_gnd: 0.0 V
                        Reductant_level_sensor_actual_raw_voltage: 2.6 V
                        KL15 on: On
                        DIAG_Opt_H: On
                        Tank_L_SC: On
                        Lines_L_SC: OFF
                        DIAG_Lines_H: OFF
                        DIAG_Lines_L: OFF
                        DIAG_Tank_H: On
                        DIAG_Tank_L: OFF
                        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: 01:41, VBatt start/end: 12.1V/12.1V)-----------

  2. #2
    Ross-Tech Employee DrPeter's Avatar
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    Hello,

    You can have a look with VCDS in the Advanced Measuring Values for the AdBlue Pump Pressure, it is displayed in [hPa].

    Use the 'word' filter at the top of the pop-up box of the descriptions, use "pressure sensor", the first one should be it.

    Code:
    [*IDE03132*],176,,Pressure sensor for reducing agent: measured pressure,IDENTICAL,hPa
    Typically the reading is around 5-bar (with the pump/engine running) or in this case if my math is correct, 5,000-hPa.


    Hope this helps and let us know what you find!

    drpeter

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  4. #3
    Verified VCDS User
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    Hi DrPeter,

    Thanks for the reply. I have has a look at the log again and there is a reading for the pressure "Pressure sensor for reducing agent: measured pressure: -500 hPa".

    Is this the one you are looking for? Or should I get a fresh reading using the method you just explained?

  5. #4
    Ross-Tech Employee DrPeter's Avatar
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    Quote Originally Posted by TheRenegade View Post
    Hi DrPeter,

    Thanks for the reply. I have has a look at the log again and there is a reading for the pressure "Pressure sensor for reducing agent: measured pressure: -500 hPa".

    Is this the one you are looking for? Or should I get a fresh reading using the method you just explained?
    Hi, Ah, okay ... That was the value in your freeze frame.
    I was suggesting to have a look at the 'live' pressure, with VCDS in the Advanced Measuring Values. That way you can 'see' the current pressure and if it actually reads the expected ~5 bar. Come to think of it it maybe around 6 bar.. maybe? Either case it should not read a negative with the pump running.

    You can use the [Output Tests] to run the pump too and select the [Measuring Values] for the "Pressure sensor for reducing agent" value.

    Also, [-500 hPa] seems weird. It is possible the sensor would read atmospheric pressure, then you should see about [1000 hPa] at sea level. Perhaps the pump is okay and the "Pressure sensor for reducing agent" is faulty?

    Let us know what you see for the 'live' "Pressure sensor for reducing agent".

    Thanks,

    drpeter
    Last edited by DrPeter; 05-29-2020 at 01:45 PM. Reason: grammar

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  7. #5
    Verified VCDS User
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    Hi,

    So this is the first chance I have had to go and do something with the car. I managed to do what you asked (I hope)!

    https://i.imgur.com/6Xb3Xsa.png


    The car was turned on and I'd left it running for about 10 - 15 minutes be fore doing this.
    Last edited by TheRenegade; 05-31-2020 at 12:22 PM. Reason: Wrong link to image

  8. #6
    Benevolent Dictator Uwe's Avatar
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    Uhm... The forum can't pull and display images from your C:\ drive.

    Please see How to Post Pictures.

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

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  10. #7
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    LOL, sorry. I thought I had done it properly. Oh well,try again...


  11. #8
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    Also note that the Adblue nozzle is heated to over 100deg to prevent crystal deposits in the nozzle. You have an open circuit fault for the heater Circuit, so I would check that also.
    It is not difficult to remove the nozzle and run a pump test. You should end up with approx 40-50ml in a container at the end of the test. You can also see if the heater is working or the nozzle is blocked (should have 3 jets out of it)

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  13. #9
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    Quote Originally Posted by Rollux View Post
    Also note that the Adblue nozzle is heated to over 100deg to prevent crystal deposits in the nozzle. You have an open circuit fault for the heater Circuit, so I would check that also.
    It is not difficult to remove the nozzle and run a pump test. You should end up with approx 40-50ml in a container at the end of the test. You can also see if the heater is working or the nozzle is blocked (should have 3 jets out of it)
    Thanks for that, I'll have a look later today or in the morning. Just before I go hunting for it, is this the location of the nozzle?


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    Sorry, I can’t tell from that pic

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