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MK3 Revolution
TTs - DRL Removal / Fog Light Jumper

"I want to use my fog-lights!  And no DRLs!"

During the installation of the euro headlight switch, there are some things to consider before you put the dash back together.  First, is the issue of the deactivation of the Daytime Running Lights (DRL) feature; can be easily done with the headlight switch out.  Second, is the optional use of the fog lights when just the parking light are in use.  These simple and basic modifications are fully reversible if the owner of the vehicle does not like the current settings.

DRL Removal
1.)  With the headlight switch not connected to the wiring harness, locate pin #15 on the switch.  When looking at the back of the switch, it's the very top right connector pin.
 
2.)  Take some standard electrical tape, cut to the correct size / width, and place over pin #15 on the switch.  This is the simplest and non-destructive way to deactivate the DRLs; the electrical tape does not let the switch connect with power wire (yellow wire only) of the DRLs.
 
3.)  Install switch with tape covering pin and connect to wiring harness; at this time, start car to verify that the DRLs are deactivated.
 
4.)  If continuing to install headlight switch, please refer back to Euro Headlight Switch installation procedure.
 
- Average Time:  5+ mintues (additional)
- Scheduled Maintenance:  none - personal customization
- Price of Materials:  electrical tape ~ $5.00
- Written by Erik Melander

Fog Light Jumper Modification
1.)  After completing headlight switch installation, head under the steering wheel and remove the fuse / relay cover panel.
 
2.)  Locate relay position #10 on the relay panel; the OEM relay has 110 printed on it.  Pull gentley out and remove from panel.
 
3.)  Make or buy fog light wiring jumpers and install the "C" jumper in the top right and bottom right of the relay contacts; install the "bridge" or "Z" jumper in the left and right middle relay contacts.  Be sure to use electrical tape if any of the jumpers is close to touching or grounding out to another relay.
 
4.)  After jumpers have been installed, start car and varify use of fog light independant of the headlights.  If fog lights do not work in the parking light position, shut off car and double check connection on the relay jumpers.
 
5.)  If working properly, re-install fuse panel.
 
- Average Time:  20+ mintues (additional)
- Scheduled Maintenance:  none - personal customization
- Price of Materials:  fog light jumpers ~ $5.00
                              or   copper wire ~ $1.00
                                     electrical connectors ~ $1.00
- Written by Erik Melander

drlremoval.jpg

Shown highlighted is connection pin #15 (looking at the swtich from the backside); that pins mounts to the yellow power wire for the DRLs on the headlight switch wiring harness.  Place the tape on both side of the pin so that the DRL circuit does not close.

fusepaneljumper.jpg

Shown above is the homemade wire jumpers installed; notice the installed positions, the horizontal wire connects the two middle pins and the vertical connects the far right top / bottom pins.  Be sure to insulate the connections so that they DO NOT ground / short out; it can cause an electrical fire.  Once jumpers are installed, the fog light option during parking lights will work on the euro switch as shown below.

switchfogs.jpg