HID CANBUS, LED decoder, and relay harness guide
Many vehicles monitor the headlight circuit or use pulse-width modulation (PWM) to control the lights. An HID or LED upgrade changes how that circuit behaves, which can cause a bulb-out warning, flicker, intermittent operation, or an HID ballast that does not start consistently. This guide helps you identify the likely cause and choose the right supporting parts for your vehicle and bulb position.
Get the fit right the first time: Decoder and harness requirements can change by model year, trim, headlight package, bulb position, daytime-running-light setup, and the HID or LED product being installed.
Start with Shop by Vehicle. If your configuration is not clear, ask BRI Source for fitment help with your year, make, model, trim, bulb position, original bulb type, and the product you are considering. We will help confirm the bulb and supporting parts.
Why the vehicle reacts
A vehicle may check whether a bulb is working by measuring electrical load or by sending brief test pulses through the circuit. Because an LED driver or HID ballast behaves differently from a halogen filament, the vehicle may report a failed bulb or switch the circuit off even when the new light itself works.
A relay and a decoder do different jobs
A relay harness uses the factory headlight signal to switch a fused battery-power feed to the HID ballasts. It can improve startup power and reduce voltage loss, but it does not automatically satisfy the vehicle's bulb-monitoring system. A monitored circuit may also need a compatible CANBUS module or vehicle-specific harness.
Daytime running lights need special attention
Some daytime running lights use reduced voltage or PWM instead of the full headlight signal. This can produce flicker or unstable operation with an upgrade. When the high beam also serves as the DRL, confirm the product-specific solution so the lamp does not operate at unintended brightness.
What the symptom can tell you
- Bulb-out warning, lighting error message, or dashboard warning after installation.
- A brief flash while the vehicle is off or during startup, caused by a circuit check that a halogen filament would not visibly respond to.
- Flicker, pulsing, or strobing while the lights are on, especially when the same bulb also serves as a daytime running light.
- One side starts and the other does not, or a light shuts off shortly after startup.
- HID ballasts ignite inconsistently until the lights are switched off and back on.
- The upgrade works at full headlight power but behaves differently in DRL mode.
Special installation notes
Reversed polarity
If an LED bulb does not power on at all, check the product instructions for polarity before assuming it is defective. Never force a connector or change pin positions without confirming the correct pinout for the vehicle and product.
Confirm the original light
Check the exact bulb position and whether the vehicle has a halogen, factory HID, or factory LED headlight package. The same year and model can use different headlight assemblies, and a factory LED assembly may not have a replaceable bulb.
Warning or flicker after an LED install
Use an LED decoder or CANBUS accessory matched to the bulb size and LED product. A generic load resistor is not interchangeable with every decoder, and resistance-based accessories can become hot during operation.
Intermittent HID startup
Check power, ground, fuses, connectors, and ballast connections first. A relay harness may help when startup power is weak or inconsistent; a monitored or PWM-controlled circuit may also need a CANBUS or vehicle-specific solution.
Match the solution to the symptom
- Bulb-out warning or LED flicker: start with the decoder or CANBUS accessory specified for the LED product and bulb size.
- Weak or inconsistent HID startup: check whether the HID kit calls for a relay harness; monitored circuits may need a CANBUS solution as well.
- Problem only in DRL mode: confirm how the vehicle powers that bulb position before adding parts. Reduced-voltage and PWM DRLs often need a product- and vehicle-specific setup.
- No light at all: verify bulb type, connector, polarity, fuse, power, ground, and the original headlight system before adding a decoder.
Shop by the problem you are solving
These are common starting points for warning, flicker, startup-power, and vehicle-specific compatibility issues. Confirm the bulb size, headlight package, vehicle, and installed lighting product before ordering.
DDM Tuning LED/HID Decoders
A bulb-size-specific option for select installs that trigger a bulb warning, flicker, or unstable operation after an LED or HID upgrade.
View DDM LED/HID Decoder
DDM Tuning Dual Relay Harness
Helps provide a fused battery-power feed to compatible HID ballasts. A relay supports power delivery but does not correct every monitored-circuit warning.
View DDM Dual Relay Harness
Morimoto Mopar-Spec CANBUS Harness
A purpose-built low-beam option for compatible Chrysler, Dodge, Jeep, and Ram conversions. Verify the exact vehicle and lighting product first.
View Mopar-Spec CANBUS HarnessWhat decoders cannot fix
A decoder addresses a specific electrical compatibility problem. It does not correct the wrong bulb, a damaged circuit, or a headlight that was not designed for the upgrade.
- Wrong bulb size, wrong headlight package, or a factory LED assembly with no replaceable bulb.
- Damaged wiring, blown fuses, poor grounds, corrosion, failed factory modules, or previous wiring modifications.
- Insufficient room for the bulb, driver, wiring, decoder, heatsink, or sealed dust cap.
- Poor beam pattern or glare from using a light source the headlight optics were not designed to use.
- A vehicle that requires a specific harness, adapter, coding procedure, or headlight repair.
Use lighting products only in applications they are designed for, keep the headlight housing properly sealed, and follow local road-use requirements.
Documented electrical-support references
Requirements can vary by trim, headlight package, DRL configuration, and the HID or LED product being installed. Confirmed entries have documented vehicle electrical behavior. Likely and Possible entries are included where available technical or compatibility evidence suggests additional electrical support may be needed.
Being listed does not mean every HID or LED product requires a decoder, resistor, relay harness, or other accessory.
Application labels: Low beam and High beam identify individual bulb positions; Low/High beam identifies one bulb used for both positions; DRL means daytime running light; Fog light identifies a fog-lamp position.
No vehicle reference records match that search. Check the spelling, try a broader term, or ask BRI Source for fitment help.
Acura2 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| ILX | 2013–2015 | High beam / DRL (HB3) | Confirmed |
| TL | 2009–2014 | High beam / DRL (HB3) | Confirmed |
Audi4 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| A3 (8P) | 2006–2008 | Low beam (H7 halogen) | Likely |
| A4 (B7) | 2005.5–2008 | Low beam (H7 halogen) | Likely |
| A6 (C6) | 2005–2011 | Low beam (H7 halogen) | Likely |
| TT (8J) | 2008–2014 | Low beam (H7 halogen) | Likely |
BMW3 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| 1 Series (E82/E88 128i) | 2011–2013 | Low beam (H7 halogen) | Likely |
| X1 (E84) | 2013–2015 | Low beam (H7 halogen) | Likely |
| X3 (F25) | 2011–2014 | Low beam (H7 halogen) | Likely |
Cadillac2 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| CTS (2nd gen, non-HID headlamps) | 2008–2013 | Low beam / DRL (H11 halogen) | Confirmed |
| SRX (AWD, non-HID headlamps) | 2010–2013 | Low beam / DRL (H11 halogen) | Confirmed |
Chevrolet3 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Camaro (non-HID headlamps) | 2010–2013 | Low beam / DRL (H13 halogen) | Confirmed |
| Cruze / Cruze Limited (1st gen) | 2011–2016 | Low beam / DRL (H13 halogen) | Confirmed |
| Malibu (non-HID headlamps) | 2013–2015 | Low beam / DRL (H11 halogen) | Confirmed |
Dodge3 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Avenger | 2008–2014 | Low beam / DRL (9006) | Confirmed |
| Caliber | 2007–2012 | High beam / DRL (H13/9008) | Confirmed |
| Grand Caravan | 2008–2020 | Low beam / DRL (H11) | Confirmed |
Ram2 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Ram 2500 / 3500 | 2013–2014 | Low/High beam (9007 quad/base headlamps) | Confirmed |
| Ram 1500 (without projector headlamps) | 2015 | Low beam (H11) | Likely |
Fiat1 record
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| Model | Years | Application | Confidence |
|---|---|---|---|
| 500 / 500c / Abarth | 2012–2019 | DRL / parking light (W21/5W) | Confirmed |
Ford6 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Edge (1st gen; halogen headlamps) | 2007–2014 | Low beam / DRL (H11) | Confirmed |
| Escape (3rd gen; halogen headlamps) | 2013–2016 | Low beam / DRL (H11) | Confirmed |
| Expedition (3rd gen; halogen headlamps) | 2007–2017 | Low/High beam / DRL (H13/9008) | Confirmed |
| F-150 (12th gen; halogen headlamps) | 2009–2014 | Low/High beam / DRL (H13/9008) | Confirmed |
| F-250 / F-350 Super Duty (halogen headlamps) | 2011–2016 | Low/High beam (H13/9008) | Confirmed |
| Fusion (2nd gen; halogen headlamps) | 2013–2016 | Low beam / DRL (H11) | Confirmed |
GMC3 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Envoy (GMT360) | 2002–2009 | Low beam / DRL (9006) | Confirmed |
| Terrain (1st gen, halogen headlamps) | 2010–2015 | Low beam / DRL (H11) | Confirmed |
| Sierra 1500 (K2XX halogen headlamps) | 2014 | Low/High beam (9012/HIR2) | Likely |
Honda6 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Accord Sedan/Coupe (9th gen, bulb-type DRL) | 2013–2015 | High beam / DRL (9005/HB3) | Confirmed |
| Civic Sedan/Coupe (8th gen, halogen headlamps) | 2011 | High beam / DRL (9005/HB3) | Confirmed |
| Civic Sedan/Coupe (9th gen, halogen headlamps) | 2012–2015 | High beam / DRL (9005/HB3) | Confirmed |
| CR-V (4th gen, halogen high-beam DRL) | 2012–2014 | High beam / DRL (9005/HB3) | Confirmed |
| CR-V LX (4th gen, without Smart Entry) | 2015–2016 | High beam / DRL (9005/HB3) | Confirmed |
| Pilot (2nd gen, halogen high-beam DRL) | 2009–2015 | High beam / DRL (9005/HB3) | Confirmed |
Hyundai6 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Elantra Sedan (6th gen, halogen headlamps) | 2017–2018 | Low beam (9005/HB3) / High beam (H7) | Likely |
| Elantra Sedan (6th gen refresh, Type A halogen) | 2019–2020 | Low beam / High beam (9005/HB3) | Likely |
| Elantra Sedan (7th gen, Type A halogen) | 2021–2023 | Low beam / High beam (9005/HB3) | Likely |
| Elantra GT (PD, Type A halogen) | 2018–2020 | Low beam (H7) / High beam (9005/HB3) | Likely |
| Sonata (7th gen, Type A halogen) | 2015–2017 | Low beam / High beam (9005/HB3) | Confirmed |
| Sonata (7th gen refresh, halogen headlamps) | 2018–2019 | Low beam / High beam (9005/HB3) | Likely |
Jeep6 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Cherokee KL (bi-halogen headlamps) | 2014–2018 | Low/High beam (9012/HIR2) | Likely |
| Grand Cherokee WK2 / 2022 WK (halogen headlamps) | 2011–2022 | Low beam (H11) | Likely |
| Wrangler JK (halogen headlamps) | 2007–2018 | Low/High beam (H13/9008) | Likely |
| Wrangler JL (halogen headlamps) | 2018+ | Low/High beam (H13/9008) | Possible |
| Renegade BU (halogen headlamps) | 2015–2018 | Low/High beam (H13/9008) | Possible |
| Renegade BU (halogen headlamps) | 2019–2021 | Low beam (H13/9008) | Confirmed |
Kia14 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Cadenza (YG; Premium projector headlamps) | 2017–2019 | Low beam (H7) / High beam (HB3/9005) | Confirmed |
| Forte (BD; projector bulb-type headlamps) | 2019–2021 | Low beam (HB3/9005) / High beam (H7) | Likely |
| Forte (BD facelift; Type A/B bulb-type headlamps) | 2022–2024 | Low beam / High beam (HB3/9005) | Likely |
| Niro HEV/PHEV (DE; bulb-type headlamps) | 2017–2022 | Low beam / High beam (HB3/9005) | Confirmed |
| Optima (JF; halogen projector headlamps) | 2016–2020 | Low beam (H7) / High beam (HB3/9005) | Confirmed |
| Rio sedan / 5-door (YB; reflector headlamps) | 2018–2023 | Low/High beam (HB2/9003) | Confirmed |
| Sorento (UM; halogen headlamps) | 2016–2020 | Low beam (H7) / High beam (9005/HB3) | Confirmed |
| Soul (PS; multi-reflector headlamps) | 2014–2019 | Low/High beam (H13/9008) | Confirmed |
| Soul (PS; halogen projector headlamps) | 2014–2019 | Low beam (H7) / High beam (H7) | Confirmed |
| Soul (SK3; Type A multi-reflector headlamps) | 2020–2023 | Low beam / High beam (H19) | Confirmed |
| Soul (SK3; Type B projector headlamps) | 2020–2023 | Low beam / High beam (HB3/9005) | Confirmed |
| Sportage (QL; halogen headlamps) | 2017–2022 | Low beam / High beam (HB3/9005) | Confirmed |
| Stinger (CK; base/GT-Line bulb-type headlamps) | 2018–2021 | Low beam / High beam (HB3/9005) | Confirmed |
| Telluride (ON; LX/S/EX without LED package) | 2020–2022 | Low beam / High beam (HB3/9005) | Confirmed |
Mercedes-Benz22 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| B-Class Electric Drive / B250e (W246; halogen headlamps) | 2014–2017 | Low beam / High beam (H7) | Confirmed |
| C-Class (W203; halogen headlamps) | 2001–2007 | Low beam / High beam (H7) | Confirmed |
| C-Class (W204; halogen headlamps) | 2008–2014 | Low beam / High beam (H7) | Confirmed |
| C-Class Sedan (W205; halogen headlamps) | 2015–2018 | Low beam / High beam (H7) | Confirmed |
| CLA (C117; halogen headlamps) | 2014–2018 | Low beam (H7) / High beam / DRL (H15) | Confirmed |
| E-Class Sedan/Wagon (W211/S211; halogen headlamps) | 2003–2009 | Low beam / High beam (H7) | Confirmed |
| E-Class Sedan/Wagon (W212/S212; halogen headlamps) | 2010–2013 | Low beam / High beam (H7) | Confirmed |
| E-Class Sedan/Wagon (W212/S212 facelift; static LED headlamps) | 2014–2016 | High beam only (H7) | Likely |
| G-Class (W463; halogen headlamps) | 2002–2006 | Low/High beam (H4) | Confirmed |
| GLA (X156; halogen headlamps) | 2015–2020 | Low beam (H7) / High beam / DRL (H15) | Confirmed |
| GLC SUV (X253; halogen headlamps) | 2016–2019 | Low beam / High beam (H7) | Confirmed |
| M-Class (W164; halogen headlamps) | 2006–2011 | Low beam / High beam (H7) | Confirmed |
| M-Class (W166; halogen headlamps) | 2012–2015 | Low beam / High beam (H7) | Confirmed |
| GLE SUV (W166; halogen headlamps) | 2016–2019 | Low beam / High beam (H7) | Likely |
| GL (X164; halogen headlamps) | 2007–2012 | Low beam / High beam (H7) | Confirmed |
| GL (X166; halogen headlamps) | 2013–2016 | Low beam / High beam (H7) | Confirmed |
| GLS (X166; halogen headlamps) | 2017–2019 | Low beam / High beam (H7) | Confirmed |
| SLK (R170; halogen headlamps) | 1998–2004 | Low beam / High beam (H7) | Confirmed |
| SLK (R171; halogen headlamps) | 2005–2011 | Low beam / High beam (H7) | Confirmed |
| SLK (R172; halogen headlamps) | 2012–2016 | Low beam / High beam (H7) | Confirmed |
| SLC (R172; halogen headlamps) | 2017–2020 | Low beam / High beam (H7) | Confirmed |
| Metris (W447; halogen headlamps) | 2016–2023 | Low beam (H7) / High beam / DRL (H15) | Confirmed |
MINI7 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Hardtop 2 Door (R56; halogen headlamps) | 2007–2013 | Low/High beam (H13/9008) | Confirmed |
| Clubman (R55; halogen headlamps) | 2010–2014 | Low/High beam (H13/9008) | Confirmed |
| Convertible (R57; halogen headlamps) | 2010–2014 | Low/High beam (H13/9008) | Confirmed |
| Coupe (R58; halogen headlamps) | 2012–2014 | Low/High beam (H13/9008) | Confirmed |
| Roadster (R59; halogen headlamps) | 2012–2014 | Low/High beam (H13/9008) | Confirmed |
| Countryman (R60; halogen headlamps) | 2011–2014 | Low/High beam (H13/9008) | Confirmed |
| Paceman (R61; halogen headlamps) | 2013–2014 | Low/High beam (H13/9008) | Confirmed |
Nissan7 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Versa Note (E12; halogen headlamps) | 2014–2019 | Low/High beam (HB5/9007 dual-beam) | Likely |
| Rogue (T32; halogen headlamp package) | 2014–2020 | Low beam (H11) / High beam (H9) | Likely |
| Murano (Z51; halogen headlamp package) | 2009–2014 | Low beam (H11) / High beam (9005/HB3) | Likely |
| Murano (Z52; S/SV/SL halogen headlamps) | 2015–2018 | Low beam (H11) / High beam (H9) | Likely |
| Versa Hatchback/Sedan (C11; halogen headlamps) | 2007–2011 | Low/High beam (H4/9003/HB2 dual-beam) | Likely |
| Versa Sedan (N17; halogen headlamps) | 2012–2019 | Low/High beam (H4/9003/HB2 dual-beam) | Likely |
| Versa Sedan (N18; S/SV halogen headlamps) | 2020–2024 | Low beam (H11) / High beam (H9) | Likely |
Subaru9 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| Impreza (GD/GG; non-STI halogen headlamps) | 2007 | Low beam / DRL (H7) | Confirmed |
| Impreza (GE/GH; separate-bulb headlamps) | 2008–2011 | High beam / DRL (9005/HB3) | Confirmed |
| Impreza (GJ/GP; separate-bulb headlamps) | 2012–2016 | High beam / DRL (9005/HB3) | Confirmed |
| Impreza (GK/GT; halogen headlamps) | 2017–2019 | High beam / DRL (9005/HB3) | Confirmed |
| Forester (SF; dual-beam halogen headlamps) | 2002 | Low beam / DRL (H4/9003/HB2 dual-beam) | Confirmed |
| Forester (SG pre-facelift; dual-beam halogen headlamps) | 2003–2005 | Low beam / DRL (H4/9003/HB2 dual-beam) | Confirmed |
| Forester (SG facelift; separate-bulb halogen headlamps) | 2006–2008 | Low beam / DRL (H1) | Confirmed |
| Forester (SH; separate 9005 high beam) | 2009–2013 | High beam / DRL (9005/HB3) | Confirmed |
| Forester (SJ; non-LED headlamps with separate 9005 high beam) | 2014–2018 | High beam / DRL (9005/HB3) | Confirmed |
Toyota11 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| 4Runner (N280; halogen high beam) | 2014–2020 | High beam / DRL (9005/HB3) | Confirmed |
| 4Runner (N280; without factory LED high beam) | 2021 | High beam / DRL (9005/HB3) | Confirmed |
| Corolla (E120/E130; separate-bulb halogen) | 2003–2008 | High beam / DRL (9005/HB3) | Confirmed |
| Corolla (E140/E150; separate-bulb halogen) | 2009–2013 | High beam / DRL (9005/HB3) | Confirmed |
| Matrix (E130; first generation) | 2003–2008 | High beam / DRL (9005/HB3) | Confirmed |
| Matrix (E140; second generation) | 2009–2013 | High beam / DRL (9005/HB3) | Confirmed |
| Tacoma (N300; halogen projector headlamps) | 2016–2019 | Low beam (H11) | Likely |
| Tacoma (N300; halogen headlamps only) | 2020–2023 | Low beam (H11) | Likely |
| Tundra (XK50 pre-refresh; halogen headlamps) | 2007–2013 | Low beam (H11) | Likely |
| Tundra (XK50 refresh; halogen headlamps) | 2014–2017 | Low/High beam (H4/9003/HB2 dual-beam) | Likely |
| Tundra (XK50 refresh; SR/SR5 halogen headlamps only) | 2018–2021 | Low/High beam (H4/9003/HB2 dual-beam) | Likely |
Volvo14 records
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| Model | Years | Application | Confidence |
|---|---|---|---|
| C30 (P1; halogen headlamps) | 2008–2013 | Low beam (H11) | Confirmed |
| S40 (P1; halogen headlamps) | 2004.5–2011 | Low beam (H7) | Confirmed |
| V50 (P1; halogen headlamps) | 2005–2011 | Low beam (H7) | Confirmed |
| S60 (P2; halogen headlamps) | 2001–2009 | Low beam (H7 or H11; verify housing) | Confirmed |
| V70 (P2; halogen headlamps) | 2001–2007 | Low beam (H7 or H11; verify housing) | Confirmed |
| S60 (P3; halogen headlamps) | 2011–2018 | Low beam (H7 2011–2012; H11 2013–2018) | Likely |
| V70 (P3; halogen headlamps) | 2008–2010 | Low beam (H11) | Likely |
| S80 (P3; halogen headlamps) | 2007–2013 | Low beam (H11) | Likely |
| S80 (P3; halogen headlamps) | 2014–2016 | Low beam (H11) | Possible |
| XC60 (first generation; halogen headlamps) | 2010–2013 | Low beam (H11) | Likely |
| XC60 (first-generation facelift; halogen headlamps) | 2014–2017 | Low beam (H11) | Possible |
| XC90 (first generation; halogen headlamps) | 2003–2013 | Low beam (H11) | Likely |
| XC90 (first generation; halogen headlamps) | 2014 | Low beam (H11) | Possible |
| XC90 (SPA; base halogen headlamps) | 2016–2017 | Low beam (H11) | Likely |
Volkswagen11 records
Swipe or scroll to view all columns →
| Model | Years | Application | Confidence |
|---|---|---|---|
| Beetle (5C; halogen headlamps) | 2012–2013 | Low/High beam (H4/HB2) | Confirmed |
| Beetle (5C; halogen headlamps) | 2014–2019 | Low/High beam (H4/HB2) | Possible |
| Rabbit / GTI (Mk5/A5; halogen headlamps) | 2006–2009 | Low beam (H7) | Confirmed |
| Golf / GTI (Mk6/A6; halogen headlamps) | 2010–2014 | Low beam (H7) | Likely |
| Golf / GTI (Mk7/MQB; without Lighting Package) | 2015–2019 | Low beam (H7) | Likely |
| Jetta (A5; halogen headlamps) | 2005.5–2010 | Low beam (H7) | Possible |
| Jetta (NCS/A6; halogen headlamps) | 2011–2018 | Low beam (H7) | Likely |
| Passat (B6; halogen headlamps) | 2006–2010 | Low beam (H7) | Likely |
| Passat (NMS; halogen headlamps) | 2012–2019 | Low beam (H7) | Likely |
| Tiguan (5N; halogen headlamps) | 2009–2017; 2018 Limited | Low beam (H7) | Possible |
| Tiguan (MQB; halogen headlamps) | 2018–2021 | Low beam / High beam (H7) | Possible |
Electrical situations worth checking
These checks help separate a straightforward bulb replacement from an installation that may need additional support. They do not identify a required part by themselves: match the vehicle, headlight package, bulb position, DRL operation, and HID or LED product.
PWM or reduced-voltage DRLs
Some vehicles dim or pulse the original low- or high-beam bulb for daytime running lights. An HID ballast or LED driver can respond differently in DRL mode, causing flicker, unstable operation, or unintended brightness.
Confirm how that exact bulb position is powered and follow the product guidance before adding a decoder, resistor, harness, or changing DRL settings.
Sensitive lamp monitoring
A bulb-out message or diagnostic test can react to the lower electrical load of an HID or LED upgrade. Use a decoder or CANBUS module only when it is specified for the installed product and bulb position.
A load resistor is not interchangeable with every decoder, and resistance-based parts can become hot in operation.
HID startup-power concerns
If an HID system starts inconsistently, check power, ground, fuses, connectors, and ballast connections first. When the HID kit's installation guidance calls for it, a relay harness can provide a fused battery-power feed.
A relay harness supports power delivery; it does not by itself resolve a lamp-monitoring or PWM issue.
Product-specific harnesses and adapters
Some exact vehicle and headlamp combinations appear in lighting-brand compatibility guides with a dedicated harness or adapter. That guidance applies to the named product and configuration, not automatically to every bulb or kit.
Use the table's confidence label as a starting point, then confirm the installed product before adding support parts.
Factory HID and LED package checks
The same model year can have halogen, factory HID, or integrated LED headlamps by trim or package. Factory HID and LED assemblies may not have a replaceable halogen bulb for this type of upgrade.
Confirm the original headlight source and bulb position before ordering. If the package is unclear, ask BRI Source for fitment help.
Common bulb-size cross references
Some bulb sizes are listed under more than one standardized industry name. The names below follow common Philips/Lumileds and OSRAM catalog designations.
- 9003 / HB2 / H4
- 9008 / H13
- 9145 / H10
- 9004 / HB1
- 9005 / HB3
- 9006 / HB4
- 9007 / HB5
- 880 / H27W/1
800-series note: Do not treat “800” or “800 series” as a single standardized equivalent for 880. Some sellers use it as a grouping for several bulbs; confirm the original bulb’s exact number, base, and wattage.
Fitment note: An equivalent bulb name does not guarantee vehicle fitment, headlight-package compatibility, physical clearance, beam pattern, or electrical compatibility. Confirm the original bulb and headlamp assembly before ordering.
Top-selling lighting upgrades
Explore popular LED bulbs and HID kits from leading lighting brands. Use Shop by Vehicle to confirm the bulb size and factory headlight package, then check whether your installation needs a decoder, relay, or vehicle-specific harness.
DDM Tuning SaberLED 55W Accu/V2 ProX
A high-output LED upgrade with a compact integrated-driver design, clockable fitment, selectable colors on supported sizes, and optional decoder support.
View SaberLED 55W LED Bulbs
Morimoto 2Stroke 4.0
A premium LED bulb designed around accurate emitter placement, beam control, adjustable orientation, thermal management, and supported DRL operation.
View Morimoto 2Stroke 4.0 LED Bulbs
GTR Lighting Ultra 3
A compact, fully clockable LED platform built for strong usable output, controlled light placement, removable drivers, and optional decoder support.
View GTR Lighting Ultra 3 LED Bulbs
Morimoto XB35/XB55 2.0 Elite
A matched HID conversion system with bulbs, ballasts, igniters, wiring support, and configurable electronics for compatible vehicle applications.
View Morimoto Elite HID KitSend us the vehicle details before you order
Decoder and CANBUS needs depend on the vehicle, lighting circuit, bulb location, and product being installed. If you want help before buying, send us your vehicle details and the product you are considering.