74
Workshop Manual
Smart Tachograph EFAS-4.10/4.11
SrvID
hex
EFT
hex
DTC
Symbol
Display text
Description and trouble-shooting
S170
36
- -
GNSS
error
Meaning / Cause
:
The tachograph receives no data from the internal GNSS receiver.
Measure
:
If the error is still displayed after several ignition cycles, the GNSS
receiver is not functioning properly and the tachograph must be
replaced.
S171
0D
40 00 C46B00
!
No
position
Meaning / Cause
:
Missing position data of the GNSS receiver
y
This event is triggered, if the VU is not in CALIBRATION mode,
if position data from the GNSS receiver for more than 3 hours
cumulated driving time are missing during the journey.
Measure
:
Ensure the possibility of GNSS reception, e.g. is the tachograph
and/or an external antenna covered by a shielding object?
S173
38
40 00 C25900
DSRC
error
Meaning / Cause
:
The connection to the remote communication equipment is
faulty. (Three times in a row no response or negative response to
RTM data transmission)
Measure
:
Check connection to DSRC module.
S174
0C
40 00 C25900
!
DSRC
facility
Meaning / Cause
:
Communication error with the remote communication
equipment
(The DSRC flash data of the RTM message are different to those
in the tachograph - corrupt data / erroneous data)
Measure
:
Change DSRC module, or check for transmission errors.
S175
39
- -
ITS
error
Meaning / Cause
:
None (should not be triggered), ITS is not supported.
Measure
:
-
S176
- -
40 00 000D80
- -
(keine Anzeige am
Tachographen)
Meaning / Cause
:
The CAN message “Gateway_71” has not been received at CAN
bus A in the required interval.
Remark:
This error can only be displayed if the parameter “Standard
protocol selection” (FD52) is set to the VWN protocol (variant 8).
Measure
:
If the tachograph is not installed in a VWN vehicle, select a dif-
ferent standard protocol.
S177
- -
40 00 000B80
- -
(keine Anzeige am
Tachographen)
Meaning / Cause
:
The CAN message “Dimming_01” has not been received at CAN
bus A at the required interval.
Remark:
This error can only be displayed if the parameter “Standard
protocol selection” (FD52) is set to the VWN protocol (variant 8).
Measure
:
If the tachograph is not installed in a VWN vehicle, select a dif-
ferent standard protocol.
S178
- -
40 00 000F80
- -
(keine Anzeige am
Tachographen)
Meaning / Cause
:
The CAN message “Reset” has not been received at CAN bus A at
the required interval.
Remark:
This error can only be displayed if the parameter “Standard
protocol selection” (FD52) is set to the VWN protocol (variant 8).
Measure
:
If the tachograph is not installed in a VWN vehicle, select a dif-
ferent standard protocol.
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