LEMON Manuals: Even more car manuals for everyone
Home >> Volkswagen >> 1999 >> Golf Wolfsburg Edition, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Brake System - OBD (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> On Board Diagnostic (OBD), performing >> Measured value block, reading >> Test sequence and test tables with measured values >> Checking data bus wiring

Checking data bus wiring

WARNING: This page is about a different variant/trim than selected.

Display group number 125 

Indicated on display: (vehicle stationary)

Read measured value block 125 →
Engine 1 St.ang. 1 4WD 1 Gear.1

Press C key for the next display group number entry.

If the → key is pressed, keys 0 and 8 for work sequence "Read measured value block" must be pressed again afterwards to regain entry.

Read measured value block 125 → Display group number: 125 
Engine
1
St.ang.
1
4WD
1
Gear.
1
← Indicated on display (example)
        Data Bus for transmission1) 
  • 1 → Data bus connection is available.
  • 0 → Data bus connection is not available.3)
      Data bus for all-wheel drive2) 
  • 1 → Data bus connection is available.
  • 0 → Data bus connection is not available.3)
    Data bus for steering angle 
  • 1 → Data bus connection is available.
  • 0 → Data bus connection is not available.3)
  Data bus for engine 
  • 1 → Data bus connection is available.
  • 0 → Data bus connection is not available.3)

1) Vehicles with automatic transmission only.

Refer to 01 ON BOARD DIAGNOSTIC (OBD) for 4 SPD. AUTOMATIC TRANSMISSION 01M ON BOARD DIAGNOSTIC (OBD) and 01 ON BOARD DIAGNOSTIC (OBD) for 5 SPD. AUTOMATIC TRANSMISSION 09A ON BOARD DIAGNOSTIC (OBD) for relevant transmission code.

2) For 4MOTION vehicles only

3) Data bus connection is interrupted or data bus wires are interchanged.

Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations binder.