What to do when High and Low beams are reversed
Haizer LED Headlights are direct replacements for traditional sealed beam headlights, and are designed to work right outside of the box. Due to potential wiring changes made to the vehicle’s factory wiring pinouts, as well as differences between high and low beam circuits/connectors, these parts may not work appropriately.
*ALWAYS CHECK VEHICLE’S WIRING TO CONFIRM CURRENT OR GROUND DUE TO POTENTIAL AFTERMARKET HARNESS VARIATIONS AND ANY CHANGES BETWEEN YEARS AND MANUFACTURERS. FAILURE TO DO SO COULD RESULT IN DAMAGE TO PRODUCT OR VEHICLE. DO NOT ASSUME THE FACTORY HARNESS IS CORRECT! IF YOU’RE UNSURE OF THIS PROCESS, PROFESSIONAL INSTALLATION IS RECOMMENDED.
DO NOT SKIP. First of all, determine the corresponding wires on the vehicle harness with a circuit tester/multimeter to confirm which wires are low beam, high beam, and ground. Print this page and write down the data in the diagrams below or in another paper and keep it for reference. DISCONNECT THE BATTERY AFTERWARDS.
Installation Items/Tools: Screwdriver or pin extractor (optional), dielectric grease, silicone/corrosion protection tape or heat shrink.
In case the vehicle’s wiring harness check results are any different from the Haizer product’s plug diagram (shown below), we offer a solution free of charge. Just ask your dealer for the Haizer Adapter Harness (also shown below) and use it as described later in this manual.
The procedure to correct the inversion problem is simple: Connect the Haizer Adapter Harness to the Headlight H4 Male Connector and use the harness’ prongs according to your previous vehicle annotations. It’s good practice to put some heat shrink around the wires and anti-corrosion grease on the contacts before installation.
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