911 Carrera Cabriolet (996) F6-3.4L (1999)
Fig. 1
Fig. 2
Diagnosis
The following components are subject to cyclical monitoring when the ignition is on and the shift lever is in reverse gear:
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Control module supply voltage
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Sensor supply voltage
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Function of all sensors
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Function of control module
(transmission and reception pulses, EEPROM)
NOTE: External environmental conditions such as ice, snow or dirt can also adversely affect the function of the sensors and lead to a fault being stored.
The four sensors are connected to the control module via a wiring harness incorporated in the rear spoiler. To replace the sensors or to
perform tests, the rear spoiler must be removed.