Troubleshooting; Error Code 1111; Battery Exhausted - Porsche 944 Workshop Manual

944

Troubleshooting

Diagnosis using the tester can refer only to
the error path, but not to a defective
component.
Note:
Before troubleshooting, the entire error
memory must be read out.
Troubleshooting
Printed in Germany - XVI, 1987
Maintenance, Self-diagnosis

Error code 1111

The supply voltage is too low
< 10 V or too high > 16 V.
Possible causes for too low a supply
voltage:

Battery exhausted

Poor contact on the grounding strap
Poor contact on the control unit
A defective regulator may be the cause
of
too high a supply voltage.
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