Porsche 944 - Manual (Page 46)

03
Self-diagnosis 944
1. General information
1.1 Application
The Systemtester 9288 (BOSCH KTS 301) is a microprocessor-con-
trolled self-diagnosis tester.
All systems which have a diagnosis interface as per ISO Standard can
be tested with this tester. The following tests are possible:
* Reading out the fault memory
* Testing of the actuators
* Testing the circuit inputs
* System adaptation
* Engine-knock detection
* Sensor and status checks, tire-pressure monitoring (RDK)
The Systemtester 9288 is a high-quality pjece of electronic equip-
ment In order to prevent damage to the equipment as a result of
improper use, please read the information in the operating
instructions carefully and comply with it.
In addition. the instructions (specifications) of the vehicle manufac
turer are also to be observed.
If the tester should fail, check the following points before sending it
in for repair:
1. Has the tester been operated incorrectly?
2. Is the battery sufficiently charged?
3. Is the adapter cable OK?
(Please note when checking the adapter cable that a highly sensi-
tive electronic matching circuit is installed in the vicinity of the 19-
pore plug).
1.2 Construction (Fig. 1)
No. Description Function Remarks
1 LCD indicator Dot matrix 5 x 8
4 lines each with 20 characters
Foreign languages possible
Illumination
If the Systemtester 9288 is switched on
without the program module, following
the self-test the tester switches off auto-
matically and informs the user that the
program module is not fitted.
2 Keyboard
Keys 1, 2, 3 = Selection key
Keys < > = Previous peget next page
Key H = Help menu, e.g.:
Illumination
Screens stored
Control-unit overview
Setting up printer
Switching off unit
Key N = Return to the next higher
program level following
termination of a test
sequence or, during a test
sequence, return to the
last display
Key = Storing indication
Key = Playing back
stored reading
Switching on = Press any key
Switching off
(automatic)
= 180 s after last
depression of a key or
if no data stream flows
across the seriel
interface.
The last fjeld in the top right-hand corner is
filled completely, this means that this is a
stored figure and not an actual,
real-life figure.
Fitted accumulator with NiCd batteries.
The Systemtester 9288 must be switched off
during the initial battery charging process.
Charging time > 8 hours
Discharged upon delivery. Following charge:
Operating time:
4 - 8 hours without scale illumination
1 - 2 hours with scale illumination
Connection to vehicle battery by means
of vehicle-specific adapter lead (see 1.4)
Connection through ISO-interface
Charging voltage supply
3 Power supply
If the voltage is not sufficient,
"Charge battery" appears
on the display. If this is
not done, the unit switches
itself off. Battery charger (accessory) For test operation and for charging
the NiCd batteries.
4 Connection for
Input and output devices
Connection facility for Printer
e. g. Epson, IBM. Hewlett Packard (HP)
The Systemtester 92BB transmits data with
the following configurations:
8 data bits / 1 start bit / 1 stop bit /
No parity (for printer matching)
5 Connection for vehicle
specific adapter lead
Reading out the data Input for flashing-code support
6 Plus-in programme module
(see also Figure 2)
C-MOS !
Do not touch plug !
Operating system
LCD drive
Keyboard
Interface communication
Computations and data conversions
Plug in module:
remove rubber protector,
insert modul e fully.
03 - 34 Operating instructions for System Tester 9288
Printed in Germany - XXIV, 1991