Driving Range Signal, Checking

Selector lever position signal, checking

Only for vehicles with automatic transmission
Engine control unit receives following information from transmission control module: Driving mode selected (selector lever in 2/3/4/R/D) or No driving mode selected (selector lever in P or N).

Special tools and equipment
- VAG1551 scan tool (or V.A.G 1552 mobile scan tool) with V.A.G 1551/3B cable
- V.A.G 1598/31 adapter cable
- V.A.G 1526 multimeter or V.A.G 1715 multimeter
- V.A.G 1594 connector test kit
- Wiring diagram

Test requirement
- The selector lever of the automatic transmission must be in "P" or "N".

Test sequence
- Connect the VAG1551 scan tool (V.A.G 1552). Start engine and select Engine Control Module (ECM) using address word 01. (Connecting scan tool and selecting ECM.) Connecting VAG 1551 Scan Tool

Indicated on display:

Rapid data transfer HELP
Select function XX

- Press buttons -0- and -8- to select "Read measuring value block" function 08. Press -Q- button to confirm input.

Indicated on display:

Read measured value block HELP
Input display group number XXX

- Press buttons -0-, -5- and -6- to select "Display group number 56". Press -Q- button to confirm input.

Indicated on display: (1-4 = Display fields)

Read measured value block 56 ->
1 2 3 4

- Observe display field 4.
Indication must be specification: x x x 0 x "Neutral".
- Press foot brake pedal and select driving position.
Indication must be specification: jump to x x x 1 x "drive mode.ON".
- Press the -> button.
- Press buttons 0 and 6 for the "End output" function 06. Press -Q- button confirm input.
- Switch ignition off.

If reading does not change:
- Check terminal resistance of CAN-bus. CAN-Bus, Checking