Data Bus Wiring, Checking

Display group number 125

-- Press keys 1 , 2 and 5

-- Confirm entry with key Q .

-- There are always 4 display zones -arrows- in the measured value block. Decoding the individual values in display zones 1 to 4 can be read-off from the following tables.

Read measured value block 125 ->
-> 1 -> 2 -> 3 -> 4

Indicated on display: (when vehicle stationary)

Read measured value block 125 ->
Engine 1 St. ang. 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

Gear. 1

Indicated on display (example)

Data bus for Transmission⁽¹⁾

1 → Data bus connection is available.
0 → Data bus connection is not available ⁽²⁾.

Vacant

Data bus for steering angle

1 → Data bus connection is available.
0 → Data bus connection is not available ⁽²⁾.

Data bus for engine

1 → Data bus connection is available.
0 → Data bus connection is not available ⁽²⁾.

⁽¹⁾	Vehicles with an automatic transmission only

⁽²⁾	Data bus connection is interrupted (open circuit) or data bus wiring is interchanged. Refer to appropriate SYSTEM WIRING DIAGRAM