Connection and Use of the 9288 System Tester

Connecting the 9288 system tester, testing procedure

Notes: RDK diagnosis with the 9288 system tester must be carried out with the ignition switched on and the car standing still.










1. Connect the 9288 tester to the diagnosis socket under the booster cover next to the passenger's seat, using connecting lead 9288/1 (adapter lead).

2. Switch on the ignition and the tester. The tester can be switched on by pressing any button.

Important: Never select any speed range at the automatic transmission while testing, because engine speed may be raised by the tester when the engine is running.

3. Select vehicle type and system (RDK).

Note:
If the display shows:
- No Data Exchange Possible
Restart: >
Terminate: N

the > (Restart) button should be pressed.

If the RDK is not mentioned in the "Installed Systems" display, the reason may be one of the following:
- Power supply to control unit interrupted
- No ground connection
- Leads K or L from diagnosis are not intact
- Control unit is faulty

4. Selection from menu

Possible RDK menus / Explanation:

5. Notes on desired menu

Menu 1 = Fault memory:

Menu 2 = Sensors
Checking HF sensor and speed sensor.

Menu 3 = Switch inputs:
Pressure switch test.

Menu 1* = Events
Read out event memory for any tire pressure losses during the past 8 journeys.

* Additional RDK menu from control unit version R 02 on (introduced during 1991 model year). This menu should normally have the serial number 4. However, since the tester only has selection buttons marked 1, 2 and 3, the menu at the top of the display in this case the Events menu, starts again with the number 1.
To change from the one to the other Menu 1 display (either Events or Fault Memory), use the > or < keys (page forward, page backward).