Checking operation of electrohydraulic convertible top actuator — AUDI

Notes:

If there is no automatic movement of convertible top, pull out fuse S24 and hydraulic pump relay for convertible top operation -J321. Then have second mechanic move convertible top. It is however only possible to check the input signals in this manner.
The specifications given are only attained during movement of the convertible top. If movement is interrupted by releasing the convertible top actuator button, "0" is displayed for -E137 and convertible top operation hydraulic pump -V118.
When testing output signals, specifications can only be checked during movement of the convertible top. Interrupting movement of convertible top actuates additional solenoid valves for holding function.
If a control element is not connected or in the event of an open circuit in the wiring, "1" is always displayed for the control element concerned.
Switches not covered by the control unit are marked with an "X" in the specification display.

Input signals:
0 = Switch open (vehicle electrical system potential or open circuit in wiring)
1 = Switch closed (earth potential)
Output signals:
0 = Output stage off (earth potential or open circuit in wiring)
1 = Output stage on (vehicle electrical system potential)

Test sequence

Connect up battery charger or leave engine running to ensure constant and adequate vehicle electrical system voltage during entire test sequence.
In the event of a complaint start checking operation one test step prior to problem with movement sequence.
Start by checking all input signals.
Start electrohydraulic convertible top actuator self-diagnosis => Page
01-164
.

Rapid data transfer
HELP
Select function XX
Indicated on display:

Enter "08" for "Reading measured value block" function and confirm with Q key.

Reading measured value block
Q
Enter display group number XXX
Indicated on display:

Enter "001" for "Display group number 001" and confirm with Q key.

Reading measured value block 1
⇒
1
2
3
4
Indicated on display:
(1...4 = display zones)

Perform test steps.

8 valve pump:

Checking opening of electrohydraulic convertible top=>Page
01-232
Checking closing of electrohydraulic convertible top=>Page
01-263

6 valve pump:

Checking opening of electrohydraulic convertible top=>Page
01-290
Checking closing of electrohydraulic convertible top=>Page
01-320