968 Cabriolet L4-2990cc 3.0L DOHC (1993)
^ is capable of using testers such as oscilloscope, voltmeter, ohmmeter and ammeter, as well as of evaluating the test results.
Important:
The fault text displayed does not necessarily indicate a defect in this component, but may also refer to a fault in the corresponding control unit and
the wiring (paths) between the component and the control unit.
Before reading out the fault memory, do not try to locate faults by disconnecting plugs etc. while the engine is running as this may be stored as a
fault in the fault memory.
Note for System Tester 9288
If the tester display shows Fault not present, this may indicate:
^ Fault did not exist at the time of testing (e.g. in the case of loose connections)
Remedy: Visual inspection of path
^ In addition, in the case of a loose connection, the + symbol is displayed. Ex....... not present +
Remedy: Visual inspection of path
^ The conditions under which the fault is tested do not correspond to the conditions under which the fault occurred.
Remedy: Conform with the conditions displayed on the tester
Signal unplausible
The signal of the monitored component is not within the tolerance range of the value preset in the control unit.
Notes on the counter shown on the tester display
The first time a malfunction occurs, the counter is always set to 50. If the value is lower than 50, the difference between 50 and the value shown is
the number of starts with the test condition fulfilled and without errors. When the value reaches zero, the error path is deleted in the control unit. If
the error occurs again when the counter is less than 50, the counter is again set to 50. If the counter is above 50, the difference between the number
shown and 50 is the number of loose contacts which have occurred. Even if the figure shown is above 50, the counter is still reduced by 1 until it
reaches zero for each start with the test conditions fulfilled.
