VW | Audi
Powertrain
Engine
Turbo
Fuel Trim
- STFT is located in group 033
- 25% of STFT can be equal to 4% of LTFT when equalized
- LTFT (Adaptation) is located in group 032
- Field 1 = Long Term Fuel Trim @ Idle
- Field 2 = Long Term Fuel Trim @ Partial (under load)
Fuel Delivery
- 📎 Hard Start on Cold Engine. Ok when Warm | Defective HP Pump | VW
- 📎 Misfire, Injector Fault | Bad Connector | 2003 Audi A8
Timing
- 🩺 Engine Cutting Out | Bad CKP Reluctor | Skoda Octavia
- 📎 Engine Cutting Out | Incorrect Timing | Audi A6
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📝 P0341. Incorrect Timing | 2006 Audi A6 3.2L
- P0341 Camshaft Position Sensor (G40): Implausible signal. Chain jumped a few teeth
Transmission
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4WD | AWD | Transfer Case | Differential
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Chassis
ABS | Traction Control
📝 00778 | Steering Angle Calibration | VW]
- 00778 – Steering Angle Sensor (G85): No or Incorrect Basic Setting / Adaptation
- Go to ABS ➱ Security Access ➱ 40168 ➱ Basic Settings
- Second field should say OK.
- If car is not driven a few meters after steering angle sensor replacement, steering angle value will stay at 0 degrees.
- If steering wheel is not turned lock to lock, there will be a code for steering wheel limits not programmed.
- Go to ABS ➱ Security Access ➱ 40168 ➱ Basic Settings
📝 01276 | Corroded Fuse | 2001 VW Beetle
- 01276 ABS Hydraulic Pump (V64): Signal Outside Specifications
- Bad ABS Actuator
- Bad power supply to ABS Actuator
- 01276 | ABS Fuse | 2001 VW Beetle
📝 ABS Module Coding/Programming | VW
- Short Coding
- Use guides from ross-tech to login and code module.
- Important: Some module require steering angle programming right away after coding, otherwise coding will be reset in next ignition cycle.
- Go to login and type login for basic settings/steering angle adaptation. Then go to basic settings and choose appropriate option.
- If login that you calculated from PR codes doesn’t work, try different brake type number.
- If it will work for login, you might need to use the same brake type for coding (otherwise it might not accept it).
- Long Coding
Power Steering
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Suspension
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TPMS
MK60
- Go to ABS ➱ Basic Settings ➱ Group 042
- Press TPMS button (in glove box) and Traction OFF button simultaneously for 2 seconds
- After that a short tone will sound
- Press “Done, Go Back”
Disabling TPMS (🗣)
- Select ➱ 17-Instruments ➱ Adaptation ➱ Channel 61.
- Subtract 512 from whatever value you find there.
Body
ECM & Immobilizer Programming
Key Programming
- 2004 Audi A4. MVP Pro. No need to read pin code manually.
Remote Control Programming
- VCDS ➱ [46 – Cent. Conv.] or [35 – Cent. Locking] ➱ Adaptation
- ➱ Remote Adaptation (channel 01, on some Audi 21)
- Change 0 to 1 ➱ Test ➱ Save ➱ Press Unlock on the remote.
- Done.
Troubleshooting
- 📎 No Start. Bad Access Start Module. 2005 Audi A6
- No start, no lights on the dash.
- Power seats are working.
- Bad Access Start Module. Very common issue.
- Faulty POWER Relay #1.
- Powertrain data bus missing.
- Audi A4
- No start, no lights.
- Jumped Power Relay #1, cleared codes, and all became functional again.
Speedometer
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Airbag System 
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Seat Recognition Programming (11′, 12′ Jetta)
- SRS: B1022/9445889/036898 – Seat occupied recognition control module: Not Configured
- Security Access ➱ 20324 (enable basic settings)
- Basic Settings ➱ Seat occupied recognition serial number ➱ [Go!]
- For reserved, if asked, try 0.
- If didn’t put reserved at first try, you might need to start over with re-entering login
- After a result of Finished Correctly appears click [Stop]
- Basic Settings ➱ Resetting seat occupied recognition ➱ [Go!]
- After a result of Finished Correctly appears click [Stop]
- Clear the codes
- Note If you get a “Request Sequence Error” when performing the above procedures, try [Coding – 07] the [15 – Airbags] module with the same Coding value it already has. It may give you an error but proceed anyway with the two Basic Settings steps shown above.
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Buckle Testing | MKIV
- There are two resistors in the buckle switch: 470 Ohms and 1.1-1.2 kΩ
- 2 wire type
- there are 2 pairs of pins at the plug
- Try using 470 Ohms to emulate buckled state between YEL & BLUE wires
- 4 wire type
- one pair is connected and the other is open when the belt is unbuckled
- one pair is open (GRN & BRN) and the other shows a resistance value (YEL & BLUE) when the belt is buckled
- the way to do this is to identify which pair is which and insert a resistor across the correct pair
- Try using 470 Ohms to emulate buckled state between YEL & BLUE wires
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Seat Position Sensor Waveform | 2012 VW Passat
HVAC
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Battery | Charging
VW Battery Registration
- https://www.youtube.com/watch?v=IJAScg6JrYI
- If aftermarket battery has the same characteristics as on the photo, use OEM BEM code
Battery Drain
- 📎 Battery Drain | Bad Cluster | Audi A6 (picoauto)
- 📎 Battery Drain | Bad Keyless Entry Module, Rebuild | 2004 VW Touareg
Lighting
📎 Parking Lights Bypass | 2008 VW Jetta
- Bypassed parking lights (M1 & M3, inside the headlights) by cutting a power wire from the bumper marker lights and connecting it to M1 & M3.
📎 Turn Signal/DRL Coding | 2010 Audi A6
- Had codes for M18 and M19 left and right front side turn signal lights.
- Car had LED DRL strip on the bottom part inside the headlight. It wasn’t working. Turn signals worked fine.
- Central Electronics -> Coding. It will give you info on how to change it manually.
- Original coding was 0014103. Changed it to 0019103.
- 4= Bi-Xenon Headlights w/o Headlight Washer System.
- 9= Bi-Xenon Headlights with LED-DRL and AFS w/o Headlight Washer System.
- LED DRL strip started working, and codes for turn signals went away. Nothing about turn signal operation changed.
Seats
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Power Door Locks | Tailgate | Sliding Doors | Convertible Top
📎 Trunk Opens Half Way | Settings | 2010 Audi Q5
- Trunk lid opens half way only.
- Go to 6D Rear Lid Module ➱ Special Functions ➱ Clear All Adaptations
- If all buttons work except rear outside trunk button,
- go to the MMI ➱ Car ➱ Setup ➱ Central locking and turn OFF the tailgate lock
- Now works manually, as well as automatically.
Windows, Sunroof
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Driver Assistance | ADAS
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Parking Assistance
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