JetTurbo
geezer
- Location
- South Florida, USA
- Car(s)
- 2018 GTi Autobahn 6M
related topics - inner headlights with high-beam, DRL disable, Fog lights as DRL, Euro instrument cluster setting
Instruments = EU - euro headlight switch - DRL via Fog Lights - all bulbs original —— hit refresh to re-run animation
The Flash To Pass (FTP) inner halogen lights exist for signaling use when HIDs are off and instant on is required. Headlight signaling is activated by pulling toward you on the 'turn signal' left side multi-function stalk. The FTP stalk position is momentary - let go and the FTP function is extinguished. This facilitates rapid flashing for extra attention. :eyebulge:
If the HIDs are lit, pulling the stalk will simply raise the shutter to high beam position and the inner FTP lights will NOT light.
If HIDs are off, then the FTP lights do the task instead.
Of course, as delivered in the US, with DRL activated and set to use the HID low beam, you really never get to use FTP lights! That is because the HIDs are already on in DRL operation, so the FTP control simply lifts the bi-xenon shutter (no strike required as it is already lit).
-- why?
Striking an arc (HID, Xenon, etc.) requires a quick burst of extra high current to get the arc established. Once struck, it takes a second to stabilize. Striking an arc lamp causes wear, more so than operating hours. Multiple rapid on/off transitions are especially brutal to longevity, the igniter will not charge quickly enough for rapid on/off resulting in failed strikes. Worse the igniter will keep up, overheat, and fail. To minimize lamp strikes when one or more short quick flashes are commanded with HIDs extinguished, VW provides the filament halogen inner FTP lights.
-- how can I see mine?
To see the FTP lights in a DRL enabled car, pull back on the stalk with key on, light switch off and parking brake on (which disables DRL). That has no real world use important enough to warrant their existence :wink: They exist for settings that result in the HIDs being dark. Setting DRL to off -or- setting DRL to fog lights - allows FTP lights to function in the intended manner. :biggrin:
-- disabling DRL
DRL can be disabled with VAG-COM by changing settings in the Vehicle Electrical System Controller J519 (aka Central Electronics Controller). To disable DRL, turn off bit 4 in byte 0. With DRL off the FTP lights will illuminate when you pull the FTP stalk with the headlight switch off.
Vehicle Electrical System Controller J519 — byte 0
To disable DRL turn off bit 4
-- DRL via Fog Lights
If you leave DRL on, you can change DRL to illuminate the fog lights instead of HIDs
and FTP will function key on, headlight switch off.
See second VAG-COM screenshot pic below (byte 17) for this setting.
-- FTP lamps as DRL?
No, VW does not support FTP lamps as DRL. That would eliminate the original signaling purpose if they were already on.
-- FTP lamps with high-beam
A common request is to activate the FTP lamps as additional hi-beams.
FTP w/hi beam will NOT work when the Instrument Cluster Control Module (J285) is coded to country US.
As delivered in the 50 States.
US country setting in Instrument Cluster Control Module J285 overrides
FTP with High-Beam setting in the Vehicle Electrical System Controller J519 (aka Central Electronics Controller).
Changing to EU or UK country coding definitely permits FTP w/High-Beam. Unsure about others.
I personally use EU (Germany), although a lot of people use UK.
Fogs with high-beam, DRL off, or DRL as fog lights work ok with US country setting.
It is just the FTP w/high-beam that is disabled with US country in instrument coding.
A compatible VAG-COM system is required to change instrument cluster country coding.
To enable FTP lights with high-beams changes must be made in two places.
1. Instrument Cluster Control Module (J285)
2. Vehicle Electrical System Controller J519
Instrument Cluster Control Module J285 — 5th digit sets country
Vehicle Electrical System Controller J519 — Byte 17
bit 1 to off to enable FTP with hi-beam (requires non-US instruments country setting),
bit 4 on switches DRL to the fog lights provided DRL is active in byte 0 (above),
bit 5 off permits fogs with hi-beam
Good thing all HID equipped US market cars have hi-line MFD. After setting EU or UK instruments, the odometer and MFD (and Climatronic if equipped) will be set to metric units. MFD lets you set them back to US standard units.
---- side effects of instrument country change
There are other things affected by the non-US instrument setting.
Door open chime operation is changed (no key in ignition chime anymore - I like, ymmv).
Seat belt chime operation is changed (MFD nag screen still there, but no chime until you hit 10 mph without seat belt fastened, and then it chimes forever until belt fastened, no time out).
Single side parking light via turn signal stalk is enabled.
FM RDS display is added to MFD.
Factory Nav (MFD2 DVD, 2006-2008) completely disables nag screen :happyanim:
Factory Nav radio frequency divisions are adjusted, screws with AM pretty bad, FM not so much, sat not at all.
Factory Nav AM and FM presets are lost when the country is changed.
Don't know if there is any effect on Premium 7
Don't know what effects if any to the RNS-500 (2009+ factory Nav)
Country setting changes DRL interaction with a euro headlight switch set to the parking / city light position.
With DRL enabled + euro switch in the city position +
Country = US results in DRL ON
Country = EU results in DRL OFF
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" I asked 'what time is it?' and you told me how to build a watch! "