Renewing tachograph sender — VW

Renewing tachograph sender
Note
To ensure that tampering of the tachograph wiring harness can be detected the complete wiring harness from tachograph sender to tachograph must be renewed when renewing the tachograph sender.
Manipulation of the wiring harness to the tachograph sender is prohibited.
The sender is supplied as a replacement part complete with wiring harness including the connection to the tachograph.
Removing:
Switch off ignition and all electrical loads, and pull out ignition key.
Remove tachograph sender
Chapter
.
Cut through tachograph sender wiring harness before point
arrows
at which the tachograph sender wiring harness joins into other wiring harnesses.
Install new sender to gearbox.
Route wiring harness along retainers of the old wiring harness and secure it in place.
Route wiring harness parallel to main wiring harness
arrows
and secure it in place.
Open cable feed-through
arrow
and thread wiring harness into vehicle interior.
Close cable feed-through again.
Depending on vehicle equipment, either:
Remove left front seat
General body repairs, interior
Rep. gr.
72
Seat frames; Front seats; Removing and installing front seat
.
Or: Remove double bench seat on front passenger side
General body repairs, interior
Rep. gr.
72
Seat frames; Front seats; Removing and installing front double bench seat
.
Remove floor covering at front.
Remove lower trim of centre console
General body repairs, interior
Rep. gr.
70
Trims, insulation; Removing and installing lower trim of centre console
.
Only vehicles with ventilated rear passenger compartment:
Remove air ducts between front seats.
Continuation for all vehicles:
Unbolt cover from cable duct between left front seat and centre console.
Guide wiring harness from tachograph sender through the cable feed-through
arrow
into the cable duct in the left seat box.
Route wiring harness through cable duct to centre console
arrow
.
Remove tachograph
Chapter
.
Remove drink holder
General body repairs, interior
Rep. gr.
68
.
Route wiring harness through centre console to tachograph.
Secure wiring harness so that it does not cause rattling in area of centre console.
Cut tachograph connector off the old wiring harness
arrow
and secure old wiring harness on new wiring harness using insulating tape.
Connect connector to tachograph and install tachograph.
Installing:
Install in the reverse order of removal. When doing this, note the following:
Tachograph sender must be security sealed again once installed.
Note
Security sealing and activating the
tachograph
G24
may only be carried out by an authorised specialist workshop in accordance with § 57b StVZO (German vehicle licensing regulations).