With Manufacturer's Scan Tool

Driving Range Signal, Checking

Vehicles with automatic transmission only
Engine control module receives following information from transmission control module:
Driving range selected (selector lever in 2/3/4/R/D) or
No driving range selected (selector lever in P or N)

Special tools and equipment
- V.A.G1551 scan tool or V.A.G1552 mobile scan tool with V.A.G1551/3B cable
- V.A.G1598/31 test box
- V.A.G1526 or Fluke 83 multimeter
- V.A.G1594 adapter set
- Wiring diagram

Test conditions
- Selector lever of the automatic transmission must be in "P" or "N" position.

Test sequence
- Connect V.A.G1551 scan tool (V.A.G1552). Switch ignition on and select engine control module with "Address word" 01. (Connecting scan tool and selecting engine control module.)

Indicated on display

Rapid data transfer HELP
Select function XX

- Press keys 0 and 8 for function "Read measured value block" and confirm entry with Q key.

Indicated on display

Read measured value block HELP
Input display group number XXX

- Press keys 0, 5 and 6 for "Display group number 56" and confirm entry with Q key.

Indicated on display: (1 to 4 = Display zones)

Read measured value block 56
1 2 3 4

- Observe display zone 4. The display must read
Specification: x x x 0 x "Neutral".
- Depress foot brake and select driving range. Display must jump to
Specification: x x x 1 x "Gear engaged".

If the specifications are obtained:
- Press -> key.
- Press keys 0 and 6 for "End output" function and confirm input with Q key.
- Switch ignition off.

If the display does not change:
- Check data bus. Testing and Inspection