Hello, new member here , Touareg CR7 2018 , DENA 286 hp engine cooling fan upgrade issue.

   #1  

galiadi

Verified VCDS User
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VCDS Serial number
C?ID=432187
Because I installed a trailer hitch and I'm planning to tow a pretty heavy trailer over a long distance, I also installed a double cooling fan for a increased cooling capability.
I used a original VW wiring loom for the second fan, made the connection to the ECU, ground and connected to +12V over a 70A fuse.
After 15-20 seconds the fan starts to spin at maximum speed, despite the fact that the engine is cold, AC is off and ignition is off. I waited for 30 seconds and
disconected the power. Few minutes later I repeated the test with same results.

Here is the latest scan, hope someone will be able to give some ideas.
Regards,
Adrian

Code:
Sunday,28,February,2021,18:09:27:61894
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.12.0.1 (x64)  HEX-V2 CB: 0.4529.4
Data version: 20201125 DS322.1
www.Ross-Tech.com


VIN: WVGZZZCRZJD005604   License Plate: 20GXX
Mileage: 37861km-23525mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: CR-VW53 (4N2)
Scan: 01 02 03 06 09 13 15 16 17 19 29 2B 36 39 42 44 46 52 5F 69
          6C 6D 74 81 A5 AC BB BC CB D6 D7 DE

VIN: WVGZZZCRZJD005604   Mileage: 37861km-23525miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
06-Seat Mem. Pass -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
13-Auto Dist. Reg -- 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
29-Left Light -- Status: OK 0000
2B-Steer. Col. Lock -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
39-Right Light -- 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
5F-Information Electr. -- Status: OK 0000
69-Trailer -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
6D-Trunk Elect. -- Status: OK 0000
74-Chassis Control -- Status: OK 0000
81-Gear Shift -- Status: OK 0000
A5-Frt Sens. Drv. Assist -- Status: OK 0000
AC-Reductant Control -- Status: OK 0000
BB-Door Rear Drv -- Status: OK 0000
BC-Door Rear Pass -- Status: OK 0000
CB-Rear Axle Steering -- Status: OK 0000
D6-Light Ctrl Left 2 -- Status: OK 0000
D7-Light Ctrl Right 2 -- Status: OK 0000
DE-Charger 1 for mobile dev -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-DENA)       Labels: None
   Part No SW: 760 907 401 N    HW: 059 907 309 L
   Component: 3.0l V6 TDI   H26 0002 
   Revision: CAH26---   
   Coding: 292A4032037E050334180000000400000000000000000000
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_ECM30TDI011760907401N 001002
   ROD: EV_ECM30TDI011_VW53.rod
   VCID: 2019EB25AA4CFF6B532-8074

No fault code found.
Readiness: 0 0 0 0 1

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:* Redir Fail!
   Part No SW: 760 927 158 B    HW: 0D5 927 156 N
   Component: 0D5  30TDIRdW H05 1003 
   Revision: --H05---   
   Coding: 100000
   Shop #: WSC 31414 035 00001
   ASAM Dataset: EV_TCMALX52011 002014
   ROD: EV_TCMALX52011_VW53.rod
   VCID: 1F1BE8D99732C0936A8-804A

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 4M0-907-379-PRE-V1.clb
   Part No SW: 4M6 907 379 N    HW: 4M6 907 379
   Component: ESP9 Premium  H06 0850 
   Coding: 1DA732B730A20B9BDEA44891188156E2E93AE1B84C0CD07B12186A47975C87
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_ESP9BOSCHCMP 004011
   ROD: EV_ESP9BOSCHCMP_VW53.rod
   VCID: 48C95385623CE72BFB2-801C

No fault code found.

-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass (J521)       Labels:* None
   Part No SW: 4M6 959 760 B    HW: 4M6 959 760 B
   Component: MEM-BFS       009 0042 
   Serial number: 00000319657266
   Coding: 0118B8000000A88188000101210100008900000707008F8F00000000015000
   Shop #: WSC 31414 049 00001
   ASAM Dataset: EV_SCMPasseSideCONTIAU736 006009
   ROD: EV_SCMPasseSideCONTIAU736_VW53.rod
   VCID: 3D2732513DFEB283584-8068

   Valve block 1 in front seat passenger side:
   Subsystem 1 - Part No SW: 4N0 907 182     HW: 4N0 907 182
   Component: N477 VB1 BFSv  H04 0011
   Serial number: SJ80010704184025820D
   Coding: BF2F00

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:* 4N0-907-063-V2.clb
   Part No SW: 4N0 907 063 DG    HW: 4N0 907 063 AG
   Component: BCM1 MLBevo   H10 0652 
   Coding: 07501140E13B0009474D170858BF8C40000B301000000093011008007B24F6019BC501BB02B6C617000001000093201B1C00000100010100000000000000000000
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_BCM1BOSCHAU651 014010
   ROD: EV_BCM1BOSCHAU651_014.rod
   VCID: 76B5ED7D584821DB59E-8022

   Wiper motor control module:
   Subsystem 1 - Part No SW: 761 955 113     HW: 761 955 113
   Component: WIPER 030518  010 0380
   Serial number: VZ1SKA 0100221103051
   Coding: 0E4DDD

   Rain/Light Recognition Sensor:
   Subsystem 2 - Part No SW: 81A 955 555 A    HW: 81A 955 555
   Component: G397_RLFSS  H06 0002
   Serial number: 21367894X81A955555A0
   Coding: 0200FE

   Light switch:
   Subsystem 3 - Part No SW: 761 941 633     HW: 761 941 633
   Component: E1 - LTM  H06 0054
   Serial number: 13S28.04.1800140034

   Automatic dimming interior mirror:
   Subsystem 4 - Part No SW: 3G0 857 511 AL    HW: 3G0 857 511 AL
   Component: Y7_Innenspieg  H09 0002
   Serial number: GX1CE108011820910344
   Coding: 030000

   Interior Light Module:
   Subsystem 5 - Part No SW: 760 947 105 N    HW: 760 947 105 N
   Component: Dachelektroni  H32 0057
   Serial number: 00000084340000000000
   Coding: 000000

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:* None
   Part No SW: 760 907 561 B    HW: 760 907 561 A
   Component: LRR4R         H04 0330 
   Coding: 32657FCB78000400000020A000000010051246484401009E00
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_ACCBOSCHAU65X 002022
   ROD: EV_ACCBOSCHAU65X_VW53.rod
   VCID: 1B63DCC9832ADCB3860-804E

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:* None
   Part No SW: 4M0 959 655 J    HW: 4M0 959 655 J
   Component: AirbagVW31    H07 2710 
   Serial number: 003YQM005VC4
   Coding: 99FCC0C00C800000585400EF300D41A80065
   Shop #: WSC 05745 128 28889
   ASAM Dataset: EV_AirbaVW31SMEAU65x 001032
   ROD: EV_AirbaVW31SMEAU65x.rod
   VCID: 42DD41AD4400CD7B256-8016

   Crash sensor for side airbag: driver side:
   Subsystem 1 - Part No SW: -----------    HW: 480 002 004 18
   Component: SideSensor_Df  001 0887
   Serial number: 35700000000F55E0CD2
   Coding: 2D2D2D

   Front Passenger's Side Airbag Crash Sensor:
   Subsystem 2 - Part No SW: -----------    HW: 480 002 504 18
   Component: SideSensor_Pf  001 0887
   Serial number: 358000000005267C4D2O
   Coding: 2D2D2D

   Rear Side Airbag Crash Sensor (on driver's side):
   Subsystem 3 - Part No SW: -----------    HW: 480 031 504 18
   Component: SideSensor_Dr  002 0149
   Serial number: 351001C0CB4CF9A11D9X
   Coding: 2D2D2D

   Passenger side rear thorax airbag crash sensor:
   Subsystem 4 - Part No SW: -----------    HW: 480 032 604 18
   Component: SideSensor_Pr  002 0149
   Serial number: 352001C106A14DA14E89
   Coding: 2D2D2D

   Crash sensor for front airbag: driver side:
   Subsystem 5 - Part No SW: -----------    HW: 480 031 204 18
   Component: FrontSensor_D  002 0189
   Serial number: 355001C0C731F2D0988I
   Coding: 2D2D2D

   Crash sensor for front airbag: front passenger side:
   Subsystem 6 - Part No SW: -----------    HW: 480 031 204 18
   Component: FrontSensor_P  002 0189
   Serial number: 356001C0C73A35314BDD
   Coding: 2D2D2D

   Driver's side crash data pedestrian protection:
   Subsystem 7 - Part No SW: -----------    HW: 480 030 205 18
   Component: PedP_Sensor_D  002 014A
   Serial number: 228001C106A18CB10920
   Coding: 2D2D2D

   Passenger's side crash data pedestrian protection:
   Subsystem 8 - Part No SW: -----------    HW: 480 032 304 18
   Component: PedP_Sensor_P  002 014A
   Serial number: 229001C0CB4B71307CFN
   Coding: 2D2D2D

   Center pedestrian protection crash sensor:
   Subsystem 9 - Part No SW: -----------    HW: 480 031 304 18
   Component: PedP_Sensor_C  002 014A
   Serial number: 230001C0C7B51160A92$
   Coding: 2D2D2D

   Driver's side crash data pedestrian protection 2:
   Subsystem 10 - Part No SW: -----------    HW: 480 001 604 18
   Component: PedPSensor_D2  001 0887
   Serial number: I0M00000000645519CA6
   Coding: 2D2D2D

   Passenger's side crash data pedestrian protection 2:
   Subsystem 11 - Part No SW: -----------    HW: 480 001 604 18
   Component: PedPSensor_P2  001 0887
   Serial number: I0N00000000E35519CAE
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels: None
   Part No SW: 760 953 507     HW: 760 953 507
   Component: Lenks.Modul   H03 0006 
   ASAM Dataset: EV_SMLSKLOAU736 007012
   ROD: EV_SMLSKLOAU736_VW53.rod
   VCID: 5AED99CDCC9065BB5D6-800E

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:* None-SRI2
   Part No SW: 761 920 790     HW: 761 920 790
   Component: FBenRDW       H12 0106 
   Coding: 85A431E07F94000800886322B0E06808E40000A0
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_DashBoardAU65X 001011
   ROD: EV_DashBoardAU65X_VW53.rod
   VCID: 59EF86C1C9966EA354C-800C

   Control head driving profile:
   Subsystem 1 - Part No SW: 760 927 531 G    HW: 760 927 531 G
   Component: E881 BedieFPA  001 0460

   Level control system control head:
   Subsystem 2 - Part No SW: 760 927 135 B    HW: 760 927 135 B
   Component: E281 BedieNiv  001 0110

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:* None
   Part No SW: 4N2 907 468 AB    HW: 4N2 907 468 AB
   Component: Gateway       H14 0035 
   Revision: 8P000001    Serial number: 0188P773318428
   Coding: 0301000300800E407F07000000DB05325A9E00071C000000037D078E10000100
   Shop #: WSC 31414 146 00001
   ASAM Dataset: EV_CGateCONTIAU491 003150
   ROD: EV_CGateCONTIAU491_003_VW53.rod
   VCID: 79AFE64169564EA334C-802C

   Multifunction steering wheel control module:
   Subsystem 1 - Part No SW: 5G0 959 442 AB    HW: 5G0 959 442 AB  Labels: 3C8-959-537.CLB
   Component: E221__MFL-DC1  H17 0052
   Serial number: 39170002924090048086
   Coding: 2DFFFF

   Battery Monitoring Control Module:
   Subsystem 2 - Part No SW: 8S0 915 181 C    HW: 8S0 915 181 C
   Component: J367-BDMHella  H10 9070
   Serial number: 5819497304         

No fault code found.

-------------------------------------------------------------------------------
Address 29: Left Light (J1018)       Labels: None
   Part No SW: 80A 907 397 D    HW: 80A 907 397 D
   Component: LCM_MLBevo    H07 0022 
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LCMLeftCONTIAU426 001009
   ROD: EV_LCMLeftCONTIAU426_VW53.rod
   VCID: 30391B65FAAC4FEBC32-8064

No fault code found.

-------------------------------------------------------------------------------
Address 2B: Steer. Col. Lock (J764)       Labels:* 5Q0-905-861.clb
   Part No SW: 3Q0 905 861 A    HW: 3Q0 905 861 A
   Component: ELV-MLBevo    H05 0032 
   Serial number: 18000138902018
   Coding: 8800000000000000
   Shop #: WSC 31414 032 00001
   ASAM Dataset: EV_ELVMarquMQBB 001007
   ROD: EV_ELVMarquMQBB.rod
   VCID: 323D116DF4A07DFBB56-8066

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels:* None
   Part No SW: 4M6 959 760 B    HW: 4M6 959 760 B
   Component: MEM-FS        009 0042 
   Serial number: 00000319824058
   Coding: 01189A400000A48188000101210100008900000707008F8F00000000015000
   Shop #: WSC 31414 049 00001
   ASAM Dataset: EV_SCMDriveSideCONTIAU736 006009
   ROD: EV_SCMDriveSideCONTIAU736_VW38.rod
   VCID: 3D2732513DFEB283584-8068

   Valve block 1 in front seat driver side:
   Subsystem 1 - Part No SW: 4N0 907 182     HW: 4N0 907 182
   Component: N475 VB1 FSv  H04 0011
   Serial number: SJ800117041840258216
   Coding: BF2F00

No fault code found.

-------------------------------------------------------------------------------
Address 39: Right Light (J1023)       Labels: None
   Part No SW: 80A 907 397 D    HW: 80A 907 397 D
   Component: LCM_MLBevo    H07 0022 
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LCMRightCONTIAU426 001009
   ROD: EV_LCMLeftCONTIAU426_VW53.rod
   VCID: 30391B65FAAC4FEBC32-8064

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:* None
   Part No SW: 4M1 959 593 C    HW: 4M1 959 593 B
   Component: TSG FS001 0848 
   Serial number: YE007RDC18655
   Coding: 003F9B00DE00040000013080
   Shop #: WSC 31414 049 00001
   ASAM Dataset: EV_DCU2DriveSideMAXHKLO 001010
   ROD: EV_DCU2DriveSideMAXHCONT_VW27.rod
   VCID: 3D2732513DFEB283584-8068

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:* None
   Part No SW: 4N0 909 144 D    HW: 4N0 909 144 A
   Component: EPS_MLBEVO2BS H20 0504 
   Coding: B2110101000100
   Shop #: WSC 31414 035 00001
   ASAM Dataset: EV_EPSVWBSAU426 009015
   ROD: EV_EPSVWBSAU426_009.rod
   VCID: 313F1E61F1A646E3CCC-8064

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:* None
   Part No SW: 4N0 907 064 BP    HW: 4N0 907 064 P
   Component: BCM2 MLBevo H14 0144 
   Coding: 01342C00200000E87329A0041C00080203004004044706502F0400000508803F001F3154010001
   Shop #: WSC 31414 032 00001
   ASAM Dataset: EV_BCM2CONTIAU651 008007
   ROD: EV_BCM2CONTIAU651_008_VW53.rod
   VCID: 7EA5F55D7078699B01E-802A

   ID - sensor:
   Coding: 000000

   Heated Windshield Control Module:
   Subsystem 2 - Part No SW: 4N0 907 133 A    HW: 4N0 907 133 A
   Component: J505-FSH  H20 0400
   Serial number: 18113000629021120081

   Rear lid opener control module:
   Subsystem 3 - Part No SW: 3G0 962 243 C    HW: 3G0 962 243 C
   Component: GEB.F.Heckoef  H17 0906
   Serial number: 11030192           

   Rear spoiler control module:

1 Fault Found:
131123 - Remote key 2
          B147A 18 [009] - Current Too Low
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 21
                    Mileage: 37861 km
                    Date: 2021.02.27
                    Time: 11:52:17

                    Supply voltages-Terminal 30 power supply: 12.109 V
                    Supply voltages-Supply voltage Terminal 30 - 2: 12.102 V
                    Supply voltages-Supply voltage Terminal 30 - 3: 12.137 V
                    general_additional_freeze_frame-Ambient_temperature_not_filtered: -50.0 °C
                    general_additional_freeze_frame-coprocessor_spi_status: 00000000
                    general_additional_freeze_frame-dataflash_status: 00000000
                    general_additional_freeze_frame-interior_temperature: -50.0 °C
                    general_additional_freeze_frame-Operating_Status: 00000000 00000000
                    general_additional_freeze_frame-production_mode: not active
                    general_additional_freeze_frame-reset_cause: 00000000
                    general_additional_freeze_frame-Reset_counter: 0
                    general_additional_freeze_frame-Stall_current_cutoff_level: Deactivation stage 0
                    general_additional_freeze_frame-Stall_Current_Measuring_Mode: not active
                    general_additional_freeze_frame-subnetwork_status: 00000000 00000000
                    general_additional_freeze_frame-terminal_control_intern_status: 40 04 5A 12 04 18
                    general_additional_freeze_frame-Transport_Mode: not active
                    general_additional_freeze_frame-Vehicle speed: 0.00 km/h
                    key_error_freeze_frame: 11010101 11111111 11111111 11111111


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:* None
   Part No SW: 4M1 959 592 C    HW: 4M1 959 592 B
   Component: TSG BFS001 0848 
   Serial number: YE007RDC2208B
   Coding: 003F9B00DE00040000013080
   Shop #: WSC 31414 049 00001
   ASAM Dataset: EV_DCU2PasseSideMAXHKLO 001010
   ROD: EV_DCU2PasseSideMAXHCONT_VW27.rod
   VCID: 3C213F5526E4BB8B6FA-8068

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:* None
   Part No SW: 760 035 064     HW: 760 035 064
   Component: MU-H-LN-EU    046 2481 
   Coding: 02350601FF00000043110001000808301F0100E401A004009F
   Shop #: WSC 31414 032 00001
   ASAM Dataset: EV_MUHigGen2pALPI 001001
   ROD: EV_MUHigGen2pALPI_VW53.rod
   VCID: 4FFB789987523013BA8-801A

   Display and control head 1 for information electronics:
   Subsystem 1 - Part No SW: 760 919 618     HW: 760 919 618
   Component: ABT_Prem_L  H38 5161
   Serial number: VWZ6ZGV1150088     

   Data carrier:
   Subsystem 2 - Part No: V03 959 805 HA
   Component: MIB2P_EU_Q317  0240

   Compact disc data bank:
   Subsystem 3 - Part No: V03 959 800 EG
   Component: Gracenote2  1008

   Volume Control 1:
   Subsystem 4 - Part No SW: 761 927 341     HW: 761 927 341
   Component: VW536LLB  H06 0108
   Serial number: 2018041100000169   

   Media socket:
   Subsystem 5 - Part No SW: 5G0 035 953 D    HW: 0
H08 0014

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:| 5Q0-907-383.clb
   Part No SW: 4M0 907 383 F    HW: 4M0 907 383 B
   Component: Anhaenger     H27 0253 
   Revision: 9A001003    Serial number: 0469625327
   Coding: 0110000202000000
   Shop #: WSC 31414 029 00001
   ASAM Dataset: EV_TrailFunctGener2Hella 001008
   ROD: EV_TrailFunctGener2Hella_VW27.rod
   VCID: 35372A7105CE6AC3904-8060

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam. (J772)       Labels:* Redir Fail!
   Part No SW: 4M0 980 556 A    HW: 4M0 980 556 A
   Component: RVC Compact   H12 0250 
   Coding: 0135060123002011000040
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_CamSysRVRVCPANAMLBEv 005010
   ROD: EV_CamSysRVRVCPANAMLBEv_005.rod
   VCID: 333314690BBA74F3BE0-8066

No fault code found.

-------------------------------------------------------------------------------
Address 6D: Trunk Elect. (J605)       Labels:| 5Q0-959-107.clb
   Part No SW: 4M0 959 107 C    HW: 4M0 959 107 C
   Component: HDSG-Modul    H14 0163 
   Revision: --------    Serial number: 31919782900000
   Coding: 17F8
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_DeckLidCONTIAU736 001015
   ROD: EV_DeckLidCONTIAU736_VW27.rod
   VCID: 333314690BBA74F3BE0-8066

No fault code found.

-------------------------------------------------------------------------------
Address 74: Chassis Control (J775)       Labels:* None
   Part No SW: 4M0 907 777 M    HW: 4M0 907 777 B
   Component: Fahrwerk-SG   H37 1251 
   Serial number: 2804180425
   Coding: B0505138F8
   Shop #: WSC 17873 123 50804
   ASAM Dataset: EV_ChassContrContiAU426 001004
   ROD: EV_ChassContrContiAU426.rod
   VCID: 43D344A95B1AC4732E0-8016

   Air Suspension Compressor:
   Subsystem 1 - Part No SW: 4M0 907 778     HW: 4M0 907 778
   Component: V66LFKompOLV  H06 0013
   Serial number: 00000000004130298347
   Coding: 303030

No fault code found.

-------------------------------------------------------------------------------
Address 81: Gear Shift (J587)       Labels: None
   Part No SW: 761 713 041 A    HW: 4M1 713 041 G
   Component: GSM-LL        H10 0077 
   Revision: 0L0D5012    Serial number: 18041046794527
   ASAM Dataset: EV_GSMWaehlZFAU736 001017
   ROD: EV_GSMWaehlZFAU736.rod
   VCID: 0F7BB89947D27013FA8-805A

No fault code found.

-------------------------------------------------------------------------------
Address A5: Frt Sens. Drv. Assist (J1121)       Labels:* None
   Part No SW: 4KE 907 107 AB    HW: 4N0 907 107 G
   Component: zFAS Var B    H08 0291 
   Coding: 04028400000000000008060000D0C62C189F5300000000000000000000000000000000000000000000000000000000000000000000000000000040000000000000001890000000700000004000000000008040000020
   Shop #: WSC 131071 1023 2097151
   ASAM Dataset: EV_ZFASAU516 001005
   ROD: EV_ZFASAU516_001.rod
   VCID: 7F5B0859777260930A8-802A

No fault code found.

-------------------------------------------------------------------------------
Address AC: Reductant Control (J880)       Labels: 4M0-907-355.clb
   Part No SW: 4M0 907 355 D    HW: 4M0 907 355 B
   Component: SCR-Stg-G3H04 0006 
   ASAM Dataset: EV_RDCMINERGAU736 005012
   ROD: EV_RDCMINERGAU736_VW53.rod
   VCID: 323D116DF4A07DFBB56-8066

No fault code found.

-------------------------------------------------------------------------------
Address BB: Door Rear Drv (J388)       Labels:* None
   Part No SW: 4M1 959 595 C    HW: 4M1 959 595 B
   Component: TSG HFS001 0848 
   Serial number: YE007RDK1654A
   Coding: 003E93000000040000013080
   Shop #: WSC 31414 049 00001
   ASAM Dataset: EV_DCU2RearDriveMAXHKLO 001010
   ROD: EV_DCU2RearDriveMAXHKLO_VW38.rod
   VCID: 3FDB485937F2A0934A8-806A

No fault code found.

-------------------------------------------------------------------------------
Address BC: Door Rear Pass (J389)       Labels:* None
   Part No SW: 4M1 959 595 C    HW: 4M1 959 595 B
   Component: TSG HBFS001 0848 
   Serial number: YE007RDK1876B
   Coding: 003E93000000040000013080
   Shop #: WSC 31414 049 00001
   ASAM Dataset: EV_DCU2RearPasseMAXHKLO 001010
   ROD: EV_DCU2RearPasseMAXHKLO_VW38.rod
   VCID: 3FDB485937F2A0934A8-806A

No fault code found.

-------------------------------------------------------------------------------
Address CB: Rear Axle Steering (J1019)       Labels:* None
   Part No SW: 4M0 909 145 AA    HW: 4M0 909 145 E
   Component: HAL_MLBevoH08 0698 
   Revision: --------    Serial number: CCC_098_B_1122_
   Coding: 42250A00
   Shop #: WSC 31414 035 00001
   ASAM Dataset: EV_RearAxleSteerZFAU736 010018
   ROD: EV_RearAxleSteerZFAU736_010.rod
   VCID: 6FBBD819271210139A8-803A

No fault code found.

-------------------------------------------------------------------------------
Address D6: Light Ctrl Left 2 (A31)       Labels: 7PP-941-592.clb
   Part No SW: 7PP 941 592 AA    HW: 7PP 941 592 A
   Component: LED1L         H09 4002 
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LEDModLeftMELCOAU736 001004
   ROD: EV_LEDModLeftMELCOAU736_VW51.rod
   VCID: 176BC0F97F02B8D3A28-8042

No fault code found.

-------------------------------------------------------------------------------
Address D7: Light Ctrl Right 2 (A27)       Labels: 7PP-941-592.clb
   Part No SW: 7PP 941 592 AA    HW: 7PP 941 592 A
   Component: LED1R         H09 4002 
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LEDModRightMELCOAU736 001004
   ROD: EV_LEDModLeftMELCOAU736_VW51.rod
   VCID: 176BC0F97F02B8D3A28-8042

No fault code found.

-------------------------------------------------------------------------------
Address DE: Charger 1 for mobile dev (J1146)       Labels:* 4N0-035-502.clb
   Part No SW: 4N0 035 502     HW: 4N0 035 502
   Component: WLC Front     H06 0042 
   Coding: 800000
   Shop #: WSC 31414 049 00001
   ASAM Dataset: EV_Charg1MobilDevicAU651 004001
   ROD: EV_Charg1MobilDevicAU651_004_VW53.rod
   VCID: 619FAE21E1C6B6631CC-8034

No fault code found.

End----(Elapsed Time: 02:15, VBatt start/end: 11.7V/11.8V. VIgn 11.7V)-----
 
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   #2  

NEtech

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What type trailer hitch?
Is it installed with original tester odis?
Try this coding for 01-Engine
292A4032057E050334180000000400000000000000000000
 
   #3  

galiadi

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What type trailer hitch?
Is it installed with original tester odis?
Try this coding for 01-Engine
292A4032057E050334180000000400000000000000000000
Hello, the trailer hitch is the original one (Bosal) bought from Kufatec germany, along with wiring loom , controller, and the coding was done using the dongle they provided.
Regarding the radiator fan, I have done some more tests as follows:
I have tested both the original and the newly installed radiator fan by connecting them to power and leaving the command (PWM?) pin unconected and they behave the same, start spinning at full blast after 15 seconds , run for 1 minute and then stop. Since the old one was in working condition I will asume that both fans are in working order and this kind of starting and stopping without command signal is normal.
Connecting pin no 76 fron the ECU to the pwm input of the fan controller throws some random results, sometimes the fan does not start but always starts when I turn the ignition on and does not stop even if I turn the ignition off , I have to interrupt the power supply not to completly drain the battery.
I hooked an osciloscope probe to the output pin 76 of the ECU and doing some tests with VCDS turning on and off Colling fan no2 , I could not see a valid signal.
At this time I am pretty sure that the radiator fans are OK, I aslo tested the suggested coding with no results so I reverted to initial one.
Looks kike the ECU does not output a valid PWM signal for the second radiator fan, and the only thing that comes to my mind is that second PWM output must be somehow enabled with some coding.
I am about to get the car to the dealer but I am afraid they will not accept this job. In the mean time any ideas are welcome.
Regards,
Adrian
 
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PetrolDave

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Looks kike the ECU does not output a valid PWM signal for the second radiator fan, and the only thing that comes to my mind is that second PWM output must be somehow enabled with some coding.
Sounds reasonable to me, assuming that the ECU firmware supports coding necessary for the second fan?

Do Touareg's that come from the factory with either towbar fitted or towbar wiring have the same software version in the engine ECU?
 
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galiadi

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I honestly don't know, comparing some scans from cars with and without factory fitted trailer hitch , found here on Ross Tech forum pages I can tell the ECU is the same hardware version, but no idea about sw.
 
   #6  

NEtech

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Did you test the Coding?
 
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galiadi

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yes, I did, not working.
 
   #8  

NEtech

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Not working, meaning coding was accepted, but fan #2 not working, or coding was not accepted and if so, what was the message?
 
   #9  

Spacewalker

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what I can see from etka, that is few type of fan
even if DUAL fan ..... main fan is 2 type - supporting Towrbar or not supporting Twobar
Not sure if this is only a loom/connector different
 
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galiadi

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Not working, meaning coding was accepted, but fan #2 not working, or coding was not accepted and if so, what was the message?
Sorry , coding was accepted, no problem here, fan still not working, tested using vcds, after that I coded back with the initial code.
At this point I gave up and made an service apointment for Friday at the local VW dealership, and hope it will be an easy fix for them .

When I started the whole process of tow bar retrofitting thing, first I went to the dealership and they made a quote of cca 3400 euros for a detachable hitch and they gave me the list of needed parts.
And related strictly to fan upgrade they put on the list the following items:
Left and right radiator fan 9w0959455p, 9w0959455n,
fan shroud: 8w0121207c ,
4m0941824 fuse box,
1 xM6 nut,
760055212 wiring loom
Because I wanted a swiveling type trailer hitch I bought all af this parts sourced from different suppliers and put together on the car acording to instructions from erWin and also from wiring loom instructions. Nothing complicated ,the wiring loom at one end has a 4 pin connector wich goes into the fan control module at the other end there are 4 wires, high current +12V, low current 12V+, high current ground and PWM Control pin conected to pin 76 of the T91r connector on the ECU side.

Anyways thank you guys for trying to help, I will post back after the visit to the dealership.
 
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PetrolDave

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And related strictly to fan upgrade they put on the list the following items:
Left and right radiator fan 9w0959455p, 9w0959455n,
fan shroud: 8w0121207c ,
4m0941824 fuse box,
1 xM6 nut,
760055212 wiring loom
How many of those items have you fitted (excluding any already on your Touareg)?
 
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galiadi

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How many of those items have you fitted (excluding any already on your Touareg)?
I removed the single radiator fan and shroud which was stock and replaced it with the two ones mentioned above, mounted on a double shroud.
The original fuse box has four slots and it is populated with one 70A mega fuse, which protects the existing fan circuit and one 125A one which is not conected. I decided not to replace the whole fuse box but to add an other 70A fuse in a free slot.I made the connection between already existing circuit and fan#1 and finaly I fitted the cable for the second fan as described in an earliear post.
Regards,
adrian
 
   #13  

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Just so you know, I have a 2020 Touareg 3.0L V6 TDI, I didnt have factory fitted Towbar, but I have retrofitted the genuine swivel type. I regularly tow 3.5T LONG distances and ive never ever had any problems with cooling. I know the older models really struggled to keep cool and extra fans was essential, but im pretty sure you will be ok without the extra fan
 
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galiadi

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j8y, thanks for your input, I was afraid that towing 3000 kgs over the mountains will overheat the engine, so, for the peace of mind I already installed the upgraded two fan version and hope that VW dealership tech's will enable the second fan without any problems. Anyway is good to know that the car is doing fine towing 3.5T with just one cooling fan .
Regards,
Ad
 
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   #15  

galiadi

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Did you test the Coding?
NEtech please accept my appologies, you were right, I changed the coding from byte 5, 05 instead of 03 and the magic happened, PWM signal was enabled.
I really don't know what I done wrong first time I tried, anyway this is how I got to the same result:

Long codings for DENA engines from 2018, 2019 and 2020:
Coding: 292A4032036E050334080000000400000000000000000000
Coding: 292A4032036E050334180000000400000000000000000000
Coding: 292A4032037E050334180000000400000000000000000000
Coding: 292A403A057E050335380000000400000000000000000000
Coding: 292A403A057E050335380000000400000000000000000000
Coding: 292A4032057E050335180000000400000000000000000000
Coding: 292A403A057E050335380000000400000000000000000000
Coding: 292A4012036E050334080000000400000000000000000000
the first engine coding is from a car without trailer hitch
the second is my car before retrofit
the 3-rd is my car after retrofit
4, 5,6 and 7-th row, codes from cars with factory fitted tow bar
the last one is from a car with a retrofited trailer hitch also found here on the forums pages.
after i coded my car with the code from the 4-th row , PWM was enabeled but I had 2 errors related to lane departure and aux heater.
After two more tries I finaly cleared all errors and the second pmw output was enabeled, so only one modification was necessary, as NEtech said from the start.

So problem solved , Thanks a lot guys!! and Thank you once again NEtech!

PS In the end the VW dealership was not willing or able to help, I briefly talked with a VW tech and he stated that when he does a retrofit, receives from VW some PIN codes that he just have to enter into their computer and all the necesary coding is done without knowing the details of what byte does what, and also that the PIN code updates the VW database with the new configuration of the car.
 
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j8y

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Hey im glad it all worked out! can I just ask, does your trailer assist work? also do you get the menu where the car tells you the nose weight on the tow bracket? I retrofitted the swivel Towbar but I dont have trailer assist, I dont think my coding Is right. I didnt get a dongle.
 
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galiadi

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No, trailer assist doesn't work, my guess is that probably it requiers aditional coding depending of rear camera type ( I understood that there are Hi and Low type cameras, dont't know what that exactly means) and so on..but I have no ideea where to start.
Regardindg the coding of the trailer hitch I don't either know if all the coding is 100% right, fact is that the trailer hitch works, I have no error codes and car is still working. The only thing that doesn't work anymore is easy acces trunk opening by kicking
I have not done test with the trailer yet, I just tested the lights.
 
   #18  

j8y

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No, trailer assist doesn't work, my guess is that probably it requiers aditional coding depending of rear camera type ( I understood that there are Hi and Low type cameras, dont't know what that exactly means) and so on..but I have no ideea where to start.
Regardindg the coding of the trailer hitch I don't either know if all the coding is 100% right, fact is that the trailer hitch works, I have no error codes and car is still working. The only thing that doesn't work anymore is easy acces trunk opening by kicking
I have not done test with the trailer yet, I just tested the lights.
that's exactly the same as mine, I have no errors, the Towbar works, and my easy access no longer works :D
I also can no longer close the rear lid by holding the key, and I used to be able to do this.
 
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galiadi

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j8y, I just went outside and tested the closing of the rear lid, and it works with the hitch in both working and hidden position.
Related to easy acces opening, I would like to have it back working when the hitch is hidden, but no ideea how to do that.
 
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