Plugged My S3 in to Vag Com, and here is what it found:

[coyle]

Had my car plugged in to vagcom today to see what it may find as i've only owned it for a week.
here is what I got:

ABS:
01314 - Engine Control Module
79-00

Engine:
16486 - Mass Airflow Sensor too low
P0102- 35- 10

18084- EPC warning lamp
P1676- 35- 10, Intermitant

AWD:
00526- Brake light switch - F
27 - 10, Implausible system



can anyone shed anylight on these? The only light on the dash is the EPS light, it never goes off, I dont know if any of those codes give any idea whats causing that?
the tracking is slightly out, and i've heard that can cause that fault?

any help much appreciated

 

[finesse]

01314 - Engine Control Module

01314 - Engine Control Module: No Communications

Possible Causes

• CAN-Databus Wiring/Connectors from/to Engine Control Module faulty
• Fault(s) stored in Engine Control Module
• Engine Control Module recently flashed or re-mapped

Possible Solutions

• Check CAN-Databus Wiring/Connectors from/to Engine Control Module
• Check Measuring Value Blocks (MVB)
  • Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status

01314 - Engine Control Module: Check DTC Memory

Possible Causes

• Fault(s) stored in Engine Control Module

Possible Solutions

• Check Engine Control Module for Fault Codes

Special Notes

• Engine Control Module stored a Code which influences other Control Modules Functionality.
• To clear this Fault Code you will need to correct the Problem in the Engine Control Module first.

16486/P0102/000258 - Mass Air Flow (MAF) (G70): Signal too Low

Possible Symptoms

• Probably no serious malfunctions
• Loss of power

Possible Causes

• Wiring and/or connections (short circuit?)
• Mass Air Flow (MAF) (G70) defective

Possible Solutions

• Check wiring and connections
• Check / Replace Mass Air Flow (MAF) (G70)

Special Notes

• In MY 1995-2002 (?) in Europe at VW-diesel-cars G70 had the bad reputation of slowly losing his performance, causing loss of power. It's not a matter of defective or breaking down, but it is filthy / dirty (not easy to clean). You can check functionality by making a log in [01-engine], [meas.blocks-08], group 003 (3e gear, full throttle, from 1700-4000rpm)

18084/P1676/005750 - EPC Warning Lamp (K132) Circuit: Electrical Malfunction

Possible Causes

• EPC Warning Lamp (K132) faulty
• Wiring/Connectors from/to EPC Warning Lamp (K132) faulty
• Engine Control Module faulty

Possible Solutions

• Check EPC Warning Lamp (K132)
• Check Wiring/Connectors from

00526 - Brake Light Switch (F)

00526 - Brake Light Switch (F): Circuit Malfunction

Possible Symptoms

• MIL (Malfunction Indicator Light)
• No Brake Lights

Possible Causes

• Wiring and/or connections faulty between Brake Switch, Brake Lights and/or ABS Controle Module
• Brake Light Switch (F) damaged
• Brake Light faulty
• Fuse(s) faulty

Possible Solutions

• Check wiring and connections
• Replace Brake Light Switch (F)
• Check / Replace fuses(s)
• Check / Replace Brake Lights
• Check Brake Light Switch (F) in ABS Measuring Block

Special Notes

• FAQ 2.7. Many Automatic Transmission Control Modules will show a DTC 00526 or 17087 that indicates a faulty brake light switch. This can be ignored and will not appear if you press the brakes once before checking for Fault Codes.

 

[coyle]

thanks for that, but am i right in saying none of these would be to do with my ESP light problem?

 

[<tuffty/>]

Any of these faults can trip the ESP light as they have an effect on how ESP works... I have had the ESP light come on permenantly when my MAF went south... the CEL didn't light up though...

Fix these problems and it will sort itself out (once faults have been cleared of course)

<tuffty/>

 

[coyle]

yeh, i get what your saying.

just don't realy know where to start, particularly engine control module

 

[Sean_S3]

If you have vagcom at the ready clear the fault codes and see which ones come back. Cant comment on the engine control module or the EPC warning lamp but the mass air flow meter is easy to swap out and the brake light switch isn't expensive to replace if you need a new one.

Cheers.

 

[coyle]

Is the brake light switch under the pedal?

I dont have vag com, had to take it to be plugged in, and i can't realy keep taking it back to say, could you try it now to see what it says? haha

where would i get a copy for around the £50 mark? theres a few on ebay but don't know which are good and which are crap