§ 772. General Requirements.

(a) Operating Unit. The operating unit may consist of individual circuits to operate only the headlamps or only the taillamps. If the operating unit combines both circuits, it shall have independent headlamp and rear lamp circuits so that failure in one circuit will not affect the other circuit.

(b) Outage Indicators. Outage shall be indicated by two separate lamps, one each for the headlamp and the rear lighting circuits. Required visual indicators may be supplemented by audible indicators. Each required indicator shall consist of a lamp with an illuminated area not less than that of a circle with a 4.8-mm (0.19-in.) diameter, and each indicator shall give a clear and unmistakable signal to the driver as follows:

(1) Headlamp Circuits. One white lamp shall indicate outage in the upper or the lower beam headlamp circuit, whichever is in use.

(2) Rear Lamp Circuits. One red lamp shall indicate outage in the taillamp circuit or failure of the stoplamp fuse or switch. For multicompartment or multiple rear lamps, only the outboard sections or lamps need an outage indicator.

(c) Wiring Connectors. The device shall have wiring connectors to make all necessary electrical connections between the device and the vehicle lighting system by plug-in means at existing plug-in terminal junctions. For vehicles not equipped with plug-in terminal junctions, a plug-in terminal shall be installed to make all necessary connections to the vehicle lighting system.

(d) Fail-Safe Operation. Failure of the device shall not result in failure of the normal lighting system.

Note

Note: Authority cited: Section 26103, Vehicle Code. Reference: Sections 24012 and 26103, Vehicle Code.