Audi a4 saloon guage always showing temp high

   #1  

Wmwizkid

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hello dear wizards
i have a audi a4 2012 the problem is that the car shows temperature 90deg even after disconnecting the coolant sensor. as a result the fan stays on all the time. i cant get 5v ref on the coolant sensor or the ecu on relavant points. please help me diagnose this one
Code:
  Monday,10,August,2020,14:43:10:02918
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)  HEX-NET CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com




Chassis Type: 8K-AU48 (8R0)
Scan: 01 02 03 05 08 09 15 16 17 19 36 42 44 46 52 53 56 5F 62 6C
          72

VIN: WAUZFC8K7DY700468   Mileage: 65200km-40513miles

01-Engine -- Status: Malfunction 1010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
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: Malfunction 0010
36-Seat Mem. Drvr -- 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: Malfunction 0010
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CMFA)       Labels: None
   Part No SW: 03L 906 018 LP    HW: 03L 906 018 JL
   Component: R4 2.0l TDI   H24 9979  
   Revision: 45H24---    
   Coding: 0A034012242400080000
   Shop #: WSC 57310 002 1048576
   ASAM Dataset: EV_ECM20TDI01103L906018LP 003006
   ROD: EV_ECM20TDI01103L906018LP.rod
   VCID: 834618DC0A1EFE9E8E-80D6

3 Faults Found:
4698 - Function Restriction due to Faults in Other Modules 
          U1113 00 [039] - -
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 3
                    Mileage: 65207 km
                    Date: 2020.08.10
                    Time: 13:04:38

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 150 °C
                    Intake air temperature: 130 °C
                    Ambient air pressure: 930 mbar
                    Voltage terminal 30: 11.740 V
                    Unlearning counter according OBD: 40
                    Cruise Control System (CCS): switch position-Bits 0-7: 129
                    Cruise Control System (CCS): status-Bits 0-7: 47
                    Cruise control switch-off: irreversible-Bits 0-7: 255
                    Cruise control switch-off: reversible-Bits 0-7: 255
                    Cruise Control System: specified speed: 0.00 km/h
                    Engine control module reset status-Bits 0-7: 0
                    Engine control module reset status-Bits 0-7: 0
                    Cruise control switch-off: irreversible w. brake intervention-Bits 0-7: 0

4821 - Engine Coolant Temp. Sensor (G62) 
          P0117 00 [039] - Signal too Low
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 65207 km
                    Date: 2020.08.10
                    Time: 13:04:38

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 150 °C
                    Intake air temperature: 130 °C
                    Ambient air pressure: 930 mbar
                    Voltage terminal 30: 11.740 V
                    Unlearning counter according OBD: 40
                    Accelerator pedal travel: 0.00 %
                    Coolant temperature at radiator outlet: actual value: 150.0 °C
                    Heat delivery temperature in cooling system: -273.1 °C
                    Outside air temperature: 30.0 °C
                    Fuel consumption: 0.00 l/h
                    Fuel temperature: 136.7 °C
                    Engine oil temperature: 54.9 °C

5268 - Sensor 1 for Exhaust Temp Bank 1 (G235) 
          P0545 00 [036] - Short to Ground
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 3
                    Mileage: 65207 km
                    Date: 2020.08.10
                    Time: 13:01:46

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 150 °C
                    Intake air temperature: 130 °C
                    Ambient air pressure: 930 mbar
                    Voltage terminal 30: 12.700 V
                    Unlearning counter according OBD: 40
                    Exh.gas temp.sen 1: 950.5 °C
                    Exh.gas temp.sen 2: -0.0 °C
                    Exh.gas temp.sen 3: 637.2 °C
                    Exh.gas temp.sen 4: 630.1 °C
                    Shut-off timer: last engine shut-off time: 3 s

Readiness: 0 0 0 0 1 

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0AW-927-156.clb
   Part No SW: 8K2 927 155 G    HW: 0AW 927 156 K
   Component: 0AW 20TDI RdW H04 0003  
   Revision: --H04---    Serial number: 0000000997
   Coding: 000001
   Shop #: WSC 90001 000 00000
   ASAM Dataset: EV_TCMVL381 A02431
   ROD: EV_TCMVL381.rod
   VCID: B93ABA343852744E94-80EC

1 Fault Found:
2223 - Load Signal 
          P1857 00 [047] - Error Message from ECU
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 3
                    Mileage: 65207 km
                    Date: 2020.08.10
                    Time: 13:04:38

                    Engine speed: 100.00 /min
                    Transmission input speed: 1 /min
                    Transmission output speed: 1 /min
                    Engine torque: -40 Nm
                    Transmission fluid temperature: 45 °C
                    Accelerator position: 0.0 %
                    Clutch status: 1
                    Unlearning counter according OBD: 40
                    Occurrence_counter_over_length_of_life: 29


-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V1.clb
   Part No SW: 8K0 907 379 CH    HW: 8K0 907 379 CH
   Component: ESP8 front    H09 0100  
   Revision: --------    Serial number: --------------
   Coding: 171D58
   Shop #: WSC 90001 123 12345
   VCID: 814A12D41802EC8E9C-80D4

1 Fault Found:
01314 - Engine Control Module 
            013 - Check DTC Memory
             Freeze Frame:
                    Fault Status: 01101101
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 233
                    Mileage: 65207 km
                    Time Indication: 0
                    Date: 2020.08.10
                    Time: 13:04:37

             Freeze Frame:
                    Hex Value: 0x00C0
                    Hex Value: 0x0782
                    Hex Value: 0x000B
                    Hex Value: 0x4691
                    Hex Value: 0x0000


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 FR    HW: 8K0 907 064 FR
   Component: BCM2 2.0      H10 0602  
   Revision: 00002001    
   Coding: 01910000000000000000
   Shop #: WSC 90001 000 00000
   VCID: 854206C40C2AC0AEA0-80D0

   Subsystem 1 - Part No SW: 8T0 959 754     HW: 8T0 959 754 
   Component: FBSAUDIB8 IDG  H60 0072 
   Serial number: 0812000043977014    

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels: None
   Part No SW: 8K2 820 043 AC    HW: 8K2 820 043 AC
   Component: KLIMA 3 ZONEN H04 0123  
   Revision: D0000000    Serial number: 01030420120217
   Coding: 340462E000
   Shop #: WSC 90001 000 00000
   VCID: EA98557805740FD62D-80BE

1 Fault Found:
01314 - Engine Control Module 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 233
                    Mileage: 65207 km
                    Time Indication: 0
                    Date: 2020.08.10
                    Time: 13:04:38


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 DG    HW: 8K0 907 063 AG
   Component: BCM1 1.0      H14 0103  
   Revision: 07014001    Serial number: 00000397580002
   Coding: 260000108034AFC00081400000001D0D0F1D430823090201000008000401020100000034000000
   Shop #: WSC 61394 002 1048576
   VCID: F7BE7C0C46C6A23EA2-80A2

   Subsystem 1 - Part No SW: 8K2 955 119 A    HW: 8T2 955 119   Labels: 1KX-955-119.CLB
   Component: WWS 280312  H06 0070 
   Serial number: SWF12030280312      
   Coding: 00FD11

   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: 20190018            
   Coding: 02005D

   Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
   Component: E1 - LDS  H03 0031 
   Serial number: 00000000002103123665

   Subsystem 4 - Part No SW: 4H0 907 658     HW: 4H0 907 658 
   Component: AQ_Hum_Sensor  H02 0002 
   Serial number: 6208CF16000000000001

2 Faults Found:
00978 - Lamp for Low Beam; Left (M29) 
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 233
                    Mileage: 65207 km
                    Time Indication: 0
                    Date: 2020.08.10
                    Time: 13:01:44

00003 - Control Module 
            014 - Defective - Intermittent
             Freeze Frame:
                    Fault Status: 00111110
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 31691 km
                    Time Indication: 0
                    Date: 2018.04.19
                    Time: 21:34:38


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8K0-959-655.clb
   Part No SW: 8K0 959 655 N    HW: 8K0 959 655 N
   Component: AirbagVW-AU10 H45 0610  
   Serial number: 003KFD926DB6  
   Coding: 30544435363030303030554A3052384B3053
   Shop #: WSC 02787 002 1048576
   ASAM Dataset: EV_AirbaECUVWAUDI010 003010
   ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
   VCID: C8DCCFF073B81DC61B-809C

   Crash sensor for side airbag: driver side: 
   Serial number: 6334MSME6D404433A

   Crash sensor for side airbag: front passenger side: 
   Serial number: 6344MSME6D4610206

   Crash sensor for side airbag: rear: driver side: 
   Serial number: 6352QSME131019664

   Crash sensor for side airbag: rear: passenger side: 
   Serial number: 6362QSME7D105264G

   Crash sensor for front airbag: driver side: 
   Serial number: 63732SME7E0F175CH

   Crash sensor for front airbag: front passenger side: 
   Serial number: 63832SME3B0F0A747

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8R0 953 568 Q    HW: 8R0 953 568 Q
   Component: Lenks.Modul   H02 0171  
   Revision: 00000000    Serial number: 20120411000914
   Coding: 000016
   Shop #: WSC 90001 000 00000
   VCID: CFEEE4EC9ED6CAFE5A-809A

   Component: E221 - MFL  H03 0003 

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
   Part No SW: 8K0 920 931 C    HW: 8K0 920 931 C
   Component: KOMBIINSTR.   H35 0540  
   Revision: 00000000    Serial number: NTD70524D     
   Coding: 3326080003010008010000
   Shop #: WSC 90001 000 00000
   VCID: AE109968F91CA3F631-80FA

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8R0 907 468 C    HW: 8R0 907 468 C
   Component: GW-BEM 4CAN-M H10 0025  
   Revision: 1Y030014    Serial number: 1441Y1222902D4
   Coding: 00C303FF00
   Shop #: WSC 90001 000 00000
   VCID: BFCED42C2E765A7EAA-80EA

   Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181 
   Component: J367-BDMHella  H03 8041 
   Serial number: 1496267101          

1 Fault Found:
01314 - Engine Control Module 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 18
                    Mileage: 65207 km
                    Time Indication: 0
                    Date: 2020.08.10
                    Time: 13:37:50

             Freeze Frame:
                    Bin. Bits:    00000
                    Voltage: 12.20 V
                    Count: 7
                    Bin. Bits:    10000
                    Time: 0.40 s


-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels:. 8T0-959-760.clb
   Part No SW: 8K0 959 760 D    HW: 8K0 959 760 D
   Component: MEM-FS        H06 0076  
   Revision: AA000000    Serial number: 00000025630124
   Coding: 00781300000000000000
   Shop #: WSC 90001 000 00000
   VCID: BB36A03C3A6E465E86-80EE

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
   Part No SW: 8T0 959 793 G    HW: 8T0 959 793 G
   Component: TSG FA        H09 0302  
   Revision: --------    Serial number: --------------
   Coding: 011C02205E01410001
   Shop #: WSC 90001 000 00000
   VCID: CDD2FEE494DAF8EE28-8098

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 8K0-909-144.clb
   Part No SW: 8K0 909 144 F    HW: 8K0 909 144 B
   Component: RCEPS         H39 0507  
   Revision: 00001000    Serial number: 0003115627
   Coding: 100000010001
   Shop #: WSC 00070 000 00000
   ASAM Dataset: EV_RCEPSAU48X 008014
   ROD: EV_RCEPSAU48X_008.rod
   VCID: B4248B001F30892647-80E0

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 FR    HW: 8K0 907 064 FR
   Component: BCM2 2.0      H10 0602  
   Revision: 00002001    Serial number: 0173858679    
   Coding: 011A062000B901848020013280000000
   Shop #: WSC 90001 000 00000
   VCID: 854206C40C2AC0AEA0-80D0

   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 

   Subsystem 3 - Part No SW: 8K0 959 591 B    HW: 8K0 959 591 
   Component: J245 PS050  H08 0043 

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
   Part No SW: 8T0 959 792 G    HW: 8T0 959 792 G
   Component: TSG BF        H09 0302  
   Revision: --------    Serial number: --------------
   Coding: 011C02205E01410001
   Shop #: WSC 90001 000 00000
   VCID: CCD4F3E06FC0F1E63F-8098

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
   Part No SW: 8K0 907 801 J    HW: 8K0 907 801 J
   Component: EPB-4         H01 0001  
   Revision: --------    Serial number: 30000000008957
   ASAM Dataset: EV_ParkiBrake 001022
   ROD: EV_ParkiBrake_AU48.rod
   VCID: B620B108094C9B3679-80E2

1 Fault Found:
464384 - Function Restriction due to Faults in Other Modules 
          U1113 00 [009] - -
          [FC_SIGNAL_MO_QBIT_MOTORMOMENTE_QBIT]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 233
                    Mileage: 65207 km
                    Date: 2020.08.10
                    Time: 13:04:37

                    Voltage terminal 30: 11.7 V
                    Internal Fault ID: 188
                    Vehicle speed: 0 km/h
                    Network management state: normal
                    Function light in parking brake button: OFF
                    Red operating lamp: OFF
                    Red warning lamp: OFF
                    Green operating lamp: OFF
                    Yellow warning lamp: OFF
                    Terminal 15 status: On
                    RWU: not active
                    DSD: not active
                    HTR: not active
                    ECD: not active
                    ACC requested apply: not active
                    Auto Adjust: not active
                    General Inspection Function: not active
                    Internal Parking Brake state: static
                    Status of parking brake button: Not operated
                    Status ParkingBrake left: Open
                    Status ParkingBrake right: Open


-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels: Redir Fail!
   Part No SW: 4G0 035 056 E    HW: 4G0 035 056 
   Component: Radio U STD   H60 0093  
   Revision: AB001007    Serial number: 230CL0C2505328
   Coding: 070003020100000001
   Shop #: WSC 90001 000 00000
   VCID: A306785CA2DE1E9EAE-80F6

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 8R2 035 754 A    HW: 8R2 035 754 
   Component: H-BN-RW       H43 0467  
   Revision: --------    Serial number: 070DS0C7506065
   Coding: 0F0001000006A1EF41808B4E00000403FC0000020000000000
   Shop #: WSC 90001 000 00000
   VCID: B522B6041C4A902E70-80E0

   Subsystem 1 - Part No: 8R0 060 884 AJ
   Component: ROW 2012  0403 

   Subsystem 2 - Part No SW: 8R0 919 604     HW: 8R0 919 604 
   Component: DU7 High  H41 0104 
   Serial number: A130D30CS141475     

   Subsystem 3 - Part No SW: 8T0 919 611 K    HW: 8T0 919 611 B
   Component: E0380 Bedient  H02 0030 
   Serial number: 00000001388864      

   Subsystem 4 - Part No: 8R0 060 961 C
   Component: CD-Database  3638 

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
   Part No SW: 8T0 959 795 H    HW: 8T0 959 795 H
   Component: TSG HL        H07 0302  
   Revision: --------    Serial number: --------------
   Coding: 010C02204001210001
   Shop #: WSC 90001 000 00000
   VCID: D0ECE79083E8D50643-8084

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 8T0-907-441.clb
   Part No SW: 8T0 907 441 D    HW: 8T0 907 441 D
   Component: J772__Rearview      0140  
   Revision: --H06---    Serial number: 525PA8-J2193UT
   Coding: 1020006
   Shop #: WSC 90001 000 00000
   VCID: B93ABA34F052744E94-80EC

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-794.clb
   Part No SW: 8T0 959 795 H    HW: 8T0 959 795 H
   Component: TSG HR        H07 0302  
   Revision: --------    Serial number: --------------
   Coding: 010C02204001210001
   Shop #: WSC 90001 000 00000
   VCID: D0ECE79083E8D50643-8084

No fault code found.

End----(Elapsed Time: 01:52, VBatt start/end: 12.0V/11.9V. VIgn 11.9V)-----
 
   #2  

Jef

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Unplug the smaller T60 connector from the ECM. Unplug the coolant temp sensor, G62. Run a jumper wire across terminals /1 and /2 to short the two wires together. Now ohm test T60/54 and T60/43 and make sure you get a dead short reading. Pull the jumper wire out of the connector for the G62 and ohm test again T60/54 and T60/43, you should have an open circuit. I'd also ohm test T60/54 and T60/43 to ground and make sure that is open circuit
 
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   #3  

Wmwizkid

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Did this this test passed still no 5v on sensor
 
   #4  

PetrolDave

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Did this this test passed still no 5v on sensor
If you look at the WD is there more than one fuse supplying power to the ECU? If so then check ALL of them.
 
   #5  

Wmwizkid

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All fuses checked even chked voltages on ecu but still no 5v coming from ecu to temperature sensors.
 
   #6  

Jef

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IF.... if the ECM is bad, that will need to go through the dealer network to match up a replacement. Having said that, for testing purposes you can plug up another ECM and see if the coolant temp sensor issue goes away. I don't know how things roll in India, but over there, dealers more or less won't bother with used ECMs since the factory scan tool doesn't seem to be able to match up good used ECMs 98% of the time.
 
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