Fault patterns for Park Distance Control (PDC)

Impact of bus faults

If individual bus signals fail that are not stored in the fault code memory

- First, perform troubleshooting on the corresponding transmitter control unit.
- If the transmitter control unit is OK, troubleshooting must be run on the receiver control unit.

Possible fault symptom or perception on failure of the corresponding bus signal	Faulty or missing signal	Transmitter control unit
Implausible kilometre entries in the fault code memory at the relevant fault location,	Wegstrecke_Kilometer	KOMBI
no deactivation of the distance warning if speed threshold is exceeded, redundancy with the signal ”Wegstrecke”	Geschwindigkeit_Fahrzeug	DSC
Rear distance warning active in spite of trailer, inactive without trailer	Status_Anhänger	AHM
Distance warning not active with reverse gear engaged, activation only via the Controller	Status_Gang_Getriebe	EGS
Distance warning cannot be activated, control unit in ”sleep mode”, cannot be coded	Status_Klemme_15	CAS
Altered object registration at different temperatures, substitute value 20 degrees Celsius	Temperatur_Außen	Kombi
No deactivation of distance warning if distance threshold exceeded, redundancy with the signal ”Geschwindigkeit_Fahrzeug”	Distance	DSC
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_HL	Sensor PDC RL
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_HML	Sensor PDC RCL
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_HMR	Sensor PDC RCR
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_HR	Sensor PDC RR
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_VL	Sensor PDC FL
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_VML	Sensor PDC FCL
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_VMR	Sensor PDC FCR
Distance warning inactive, corresponding check control message	Eingang_Sensor_Abstand_PDC_VR	Sensor PDC FR
Distance warning cannot be activated via the Controller, only active with reverse gear engaged	Eingang_Taster_PDC	Button

Abbreviations	Full expression
KOMBI	Instrument Cluster
DSC	Dynamic Stability Control
AHM	Trailer Module
CAS	Car Access System
EGS	Electronic Gearbox Control
PDC RL	Park Distance Control sensor, rear left
PDC RCL	Park Distance Control sensor, rear center left
PDC RCR	Park Distance Control sensor, rear center right
PDC RR	Park Distance Control sensor, rear right
PDC FL	Park Distance Control sensor, front left
PDC FCL	Park Distance Control sensor, front center left
PDC FCR	Park Distance Control sensor, front center right
PDC FR	Park Distance Control sensor, front right