Webasto CARBONTECH Installation Instructions And Owner's Manual - page 7
Page 7 of 20
Seat Heater Pad Wire Harness Routing/Attachment:
1. Route wires from cushion & back to underside of seat. Use supplied wire ties to fasten
harness to seat.
Warning: Make sure attachment locations will NOT interfere with any seat movement.
Seat Heater Switch:
1. With the seat still removed from vehicle, choose a switch location on a flat surface where the
wires won’t interfere with any seat movement.
2.
Mark the location and drill a 19.5 mm (3/4 in) hole using a stepped drill bit.
Note: hand filing may be required for final fitment.
3. Insert switch through opening and snap into place.
Seat Heater Wire Harness:
1.
Remove vehicle scuff plate & kick panel.
2. Start under seat, route main harness through carpet opening toward scuff plate. Route
harness along scuff plate towards the underside of dash.
Note: If opening in carpet does not exist, create as required.
3. Using a digital volt/ohm meter, locate a switched ignition circuit that is capable of handling a
10A continuous current and attach using one of the supplied T-tap connectors. Use Red T-
tap for 18-22 gauge wire, blue T-tap for 16-14 gauge wire or yellow T-tap for 12-10 gauge
wire. Attach spade connector to seat heater harness red wire and connect to t-tap. Note:
Improper installation could drain your battery if you attach seat heater harness to a
constant battery source.
Warning: Never use engine control/ECM, safety device, ABS/ARS or engine cooling fan,
etc. to power the seat heater circuit.
4. Attach ring connector on the black harness wire to a suitable ground source at vehicle.
Note: A T-tap and spade connector can also be used if needed
.
Note: Tap/splice into only one vehicle circuit per seat heater harness.
Final Seat Assembly:
1. Re-assemble remaining components of seat.
2. Load seat into vehicle. Do not install mounting fasteners.
3. Re-connect vehicle harness connectors. Connect seat heater switch, main power and
heating elements to seat heater harness.
Note: Heating elements can be plugged into either connector.