Audi a4 b7 traction control light come on and off

   #1  

Michaelhare

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Hi all could anyone help with these codes i have?

The traction control keeps coming on and off when driving.

many thanks

Code:
Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN:   Mileage: 309160km-192103miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06B-906-018-AVJ.lbl
   Part No SW: 8E0 909 518 AQ    HW: 8E0 909 018 B
   Component: 1.8L R4/5VT         0010  
   Coding: 0011711
   Shop #: WSC 14641 537 402950
   VCID: 7F5B04A94BE772632A1-50F4

2 Faults Found:
16486 - Mass Air Flow Sensor (G70) 
            P0102 - 002 - Signal too Low - Intermittent
16804 - Catalyst System; Bank 1 
            P0420 - 002 - Efficiency Below Threshold - Intermittent
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-910-517.clb
   Part No SW: 8E0 910 517 C    HW: 8E0 614 517 BB
   Component: ESP8 quattro    H04 0180  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0004871
   Shop #: WSC 06335 000 00000
   VCID: 270BFCC9F3E71AA3321-8072

1 Fault Found:
18265 - Load Signal 
            P1857 - 000 - Error Message from ECU - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 2
                    Fault Frequency: 9
                    Reset counter: 37
                    Time Indication: 0

             Freeze Frame:
                    Hex Value: 0x6C00
                    Hex Value: 0x4006
                    Hex Value: 0x00FF
                    Hex Value: 0xFFAF
                    Hex Value: 0x00FF


-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 AL
   Component:   A4 Klimaautomat   2831  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 6B83C0F92A9FFEC3969-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
   Part No: 8E0 907 279 L
   Component: int. Lastmodul  ECE 0504  
   Coding: 00001
   Shop #: WSC 06335  
   VCID: 3B2330B91A7FAE43469-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-94.lbl
   Part No SW: 8E0 959 655 G    HW: 8E0 959 655 G
   Component:    Airbag 9.41  H11 3530  
   Revision: 91H1135    Serial number: 0036M004FVVQ  
   Coding: 0033622
   Shop #: WSC 06335 000 00000
   VCID: 3B2330B91F6FAE43469-806E

   Subsystem 1 - Serial number: 6332DRB4015D062DN

   Subsystem 2 - Serial number: 6342DRB401AA4C8E0

   Subsystem 3 - Serial number: 6352ARB40064C462G

   Subsystem 4 - Serial number: 6362ARB40061F285K

   Subsystem 5 - Serial number: 63729RB40063FD9E0

   Subsystem 6 - Serial number: 63829RB40064032BA

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 Q
   Component: Lenksáulenmodul     0601  
   Coding: 04011
   Shop #: WSC 00000  
   VCID: 41DF42517893C4931C5-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 981 J    HW: 8E0 920 981 J
   Component: KOMBI+WFS 3     H12 0020  
   Revision: 0020        Serial number: AUX6Z0D0364798
   Coding: 0007407
   Shop #: WSC 00198 512 00000
   VCID: 34311B853221613B873-5118

1 Fault Found:
01304 - Radio 
            004 - No Signal/Communication - Intermittent

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 981 J    HW: 8E0 920 981 J
   Component: KOMBI+WFS 3     H12 0020  
   Revision: 0020        Serial number: AUX6Z0D0364798
   Coding: 0007407
   Shop #: WSC 00198 512 00000
   VCID: 34311B853221613B873-5118

1 Fault Found:
01304 - Radio 
            004 - No Signal/Communication - Intermittent

-------------------------------------------------------------------------------
Address 37: Navigation        Labels: 8E0-035-192-RNSE.clb
   Part No SW: 8E0 035 192 C    HW: 8E0 035 192 C
   Component: RNS-E HIGH EU   H56 0650  
   Revision:      08S    Serial number: AUZBZ7E0412306
   Coding: 0301217
   Shop #: WSC 06335 000 00000
   VCID: 2411EBC582F1F1BB173-5160

5 Faults Found:
00446 - Function Limitation due to Under-Voltage 
            002 - Lower Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2004.06.22
                    Time: 00:00:30

             Freeze Frame:
                    Voltage: 11.60 V
                    Mileage: 655350 km
                    Count: 65535
                    Clock: 255:255

00862 - Antenna for GPS Navigation (R50/R52) 
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 5
                    Fault Frequency: 2
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2020.05.15
                    Time: 14:29:42

             Freeze Frame:
                    Mileage: 655350 km
                    Count: 1705
                    Clock: 14:57

00856 - Radio Antenna 
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 5
                    Fault Frequency: 2
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2020.05.15
                    Time: 14:29:45

             Freeze Frame:
                    Mileage: 655350 km
                    Count: 1705
                    Clock: 14:57

00858 - Connection; Radio Intermediate Frequency (IF) Output to Antenna Amplifier 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 5
                    Fault Frequency: 124
                    Reset counter: 204
                    Time Indication: 0
                    Date: 2020.04.07
                    Time: 15:40:05

             Freeze Frame:
                    Mileage: 655350 km
                    Count: 307
                    Clock: 18:50

01305 - Databus for Infotainment 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 5
                    Fault Frequency: 48
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2020.04.07
                    Time: 16:21:01


-------------------------------------------------------------------------------
Address 45: Inter. Monitor        Labels: 8E0-951-177.lbl
   Part No: 8E0 951 177 
   Component: Innenraumueberw.   0804  
   Coding: 00001
   Shop #: WSC 00000  
   VCID: 6B83C0F92A9FFEC3969-50AE

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8E0 959 433 CA
   Component: Komfortgerát T3B    3332  
   Coding: 07935
   Shop #: WSC 06335  
   VCID: 72BDDD9D0DB52F0B55F-4AA4

   Subsystem 1 - Part No: 8E2959802
   Component: Tõrsteuer.FS BRM 1215  

   Subsystem 2 - Part No: 8E2959801
   Component: Tõrsteuer.BF BRM 0205  

   Subsystem 3 - Part No: 8E0959801A
   Component: Tõrsteuer.HL BRM 0205  

   Subsystem 4 - Part No: 8E0959802A
   Component: Tõrsteuer.HR BRM 0205  

2 Faults Found:
01370 - Alarm triggered by Interior Monitoring 
            35-00 - -
01369 - Alarm triggered by Hood Switch 
            35-00 - -

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 8E0-035-192-RNSE.clb
   Part No SW: 8E0 035 192 C    HW: 8E0 035 192 C
   Component: RNS-E HIGH EU   H56 0650  
   Revision:      08S    Serial number: AUZBZ7E0412306
   Coding: 0301217
   Shop #: WSC 06335 000 00000
   VCID: 2411EBC582F1F1BB173-5160

5 Faults Found:
00446 - Function Limitation due to Under-Voltage 
            002 - Lower Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2004.06.22
                    Time: 00:00:30

             Freeze Frame:
                    Voltage: 11.60 V
                    Mileage: 655350 km
                    Count: 65535
                    Clock: 255:255

00862 - Antenna for GPS Navigation (R50/R52) 
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 5
                    Fault Frequency: 2
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2020.05.15
                    Time: 14:29:42

             Freeze Frame:
                    Mileage: 655350 km
                    Count: 1705
                    Clock: 14:57

00856 - Radio Antenna 
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 5
                    Fault Frequency: 2
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2020.05.15
                    Time: 14:29:45

             Freeze Frame:
                    Mileage: 655350 km
                    Count: 1705
                    Clock: 14:57

00858 - Connection; Radio Intermediate Frequency (IF) Output to Antenna Amplifier 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 5
                    Fault Frequency: 124
                    Reset counter: 204
                    Time Indication: 0
                    Date: 2020.04.07
                    Time: 15:40:05

             Freeze Frame:
                    Mileage: 655350 km
                    Count: 307
                    Clock: 18:50

01305 - Databus for Infotainment 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 5
                    Fault Frequency: 48
                    Reset counter: 244
                    Time Indication: 0
                    Date: 2020.04.07
                    Time: 16:21:01


-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 8E0-919-283-8EC.lbl
   Part No SW: 8E0 919 283 B    HW: 8E0 919 283 B
   Component: Parkhilfe 4-Kan H06 0020  
   Revision: 00H06000    Serial number: 00067802030510
   Coding: 0000104
   Shop #: WSC 06335 000 00000
   VCID: 2F3B14E9DB3742E3FA1-5184

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 8P0-862-335.lbl
   Part No SW: 8P0 862 335 E    HW: 8P0 862 335 E
   Component: FSE_255x BT     H18 0070  
   Revision: 00000001    Serial number: 00000000229335
   Coding: 0001822
   Shop #: WSC 06335 000 00000
   VCID: 38292FB52E49855BABB-50D0

No fault code found.

End----(Elapsed Time: 05:08, VBatt start/end: 11.9V/11.9V. VIgn 11.9V)-----
 
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   #2  

Jack@European_Parts

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Address 01: Engine Labels: 06B-906-018-AVJ.lbl
Part No SW: 8E0 909 518 AQ HW: 8E0 909 018 B
Component: 1.8L R4/5VT 0010 <<<<<<<<<<<<<<<<<<<<<<<<< Firmware update needed 0020 or higher?
Coding: 0011711



Change the MAF yet or check wining to it?

Isn't there a TSB for that firmware update and related to CAT P0420 code?
 
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   #3  

Michaelhare

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Hi thank you for the reply I have changed the MAF must be around a year old no more than 2 years.
Yeah I have been told about a firmware update but I was told it would take my remap off I asked the people who mapped it they said they couldn’t do this
 
   #4  

Uwe

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Hi thank you for the reply I have changed the MAF must be around a year old no more than 2 years.
Source of replacement MAF?

Have you verified all wiring and connectors relevant to the MAF?

-Uwe-
 
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Michaelhare

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Hi i am now getting these codes come up. Would the ESP sensor unit make the MAF play up?

Code:
Address 03: ABS Brakes        Labels: 8E0-910-517.clb
   Part No SW: 8E0 910 517 C    HW: 8E0 614 517 BB
   Component: ESP8 quattro    H04 0180  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0004871
   Shop #: WSC 06335 000 00000
   VCID: 270BFCC9F3E71AA3321-8072

2 Faults Found:
00493 - ESP-Sensor Unit (G419) 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 2
                    Fault Frequency: 19
                    Reset counter: 40
                    Time Indication: 0

             Freeze Frame:
                    Hex Value: 0x0000
                    Hex Value: 0x4222
                    Hex Value: 0x00FF
                    Hex Value: 0xFFAE
                    Hex Value: 0x03FF

18265 - Load Signal 
            P1857 - 000 - Error Message from ECU - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 2
                    Fault Frequency: 7
                    Reset counter: 40
                    Time Indication: 0

             Freeze Frame:
                    Hex Value: 0x3F00
                    Hex Value: 0x4202
                    Hex Value: 0x00FF
                    Hex Value: 0xFFAB
                    Hex Value: 0x03FF
 
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   #6  

Uwe

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Would the ESP sensor unit make the MAF play up?
I do not think so. However, I wouldn't rule out the possiblilty that the two problems have a single underlying cause in the electrical system somewhere.

-Uwe-
 
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Jack@European_Parts

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MAF indeed can cause ABS/ESP issues..........or wiring!
 
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Jack@European_Parts

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I know and the point is the MAF is most likely responsible for ESP issues or bad module......I wasn't picking on ya! :rolleyes:
 
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Uwe

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I know and the point is the MAF is most likely responsible for ESP issues or bad module......
For the "Load Signal - Error Message from ECU" fault, absolutely. But for the "ESP-Sensor Unit - Implausible Signal" fault, I don't think so.

-Uwe-
 
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Jack@European_Parts

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Many times after correcting MAF the ESP fault for G419 went away for me and or came due to wrong MAF installed and in addition to load signal fault.
 
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Uwe

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Many times after correcting MAF the ESP fault for G419 went away for me and or came due to wrong MAF installed and in addition to load signal fault.
OK, I won't rule out the possibility then. :)

-Uwe-
 
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Jack@European_Parts

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Only reason I'm sure of this, is early on I experimented with the MAF sensors & deliberately, different versions, further installing incorrect part numbers to compare read in blocks, codes created, or if it ran different etc..

Some cars would run better and some not so much and would cause havoc codes like aforementioned.

Some cars in 8E0 required a default and recalibration of SAS too & as a result even after install of correct MAF!

I do stupid stuff like this just to know what it does because you know some jerk or offshore supplier is going to sell one sensor thinking it fits all applications.

Plus since I did R&D testing to check batches of parts I run across similar issues frequently & reject it.

Recall the Eurovan two versions even OE?
 
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