This page describes what to do when a problem arises. Note that some problems may be located only on one side, but may affect both headlights (i.e. A fault in one black box may cause both headlights to cycle continuously.)

Follow the following steps to isolate your problem:

• If the completed system operates normally with the black boxes installed, (both the dash switch and the headlight switch work correctly), but one or both headlights won't wink, or other problems are encountered in the wink, click here
• Take the black boxes out of the circuit: De-energize the system. Now detach the in-car new connectors from the black box connectors and connect them directly, bypassing the boxes. Remove the black boxes (if necessary), then re-energize the system. If removing the black boxes corrected the problem, then a problem is probable in one or both of the black boxes. Click here.
• If the problem still occurs with the black boxes removed, a problem exists in the car's wiring and/or the new connectors. Click here.