Exterior Lamps

STOP LAMPS
The Stop Lamps receive voltage through the WHT wire that feeds the Turn/Hazard Switch. With the switches in the positions shown in the schematic, the Stop Lamps are connected to the WHT wire through the YEL and DK GRN wires and the turn switches. They come on when the Brake Switch is closed. If the Hazard Switch is moved to the "HAZARD" position, voltage to the Stop Lamps is interrupted. Only the High Level Stop Light will light.

TURN LAMPS
The Stop Lamps also serve as the rear Turn Lamps. If the Turn Left Switches in the Turn/Hazard Switch Assembly are closed to the left, the left Stop Lamp comes on. It gets battery voltage through the Turn Flasher, the Hazard Switch, the Turn Left Switch and the YEL wire. The LH Front Turn Lamp and the LH Turn Indicator also come on. They are fed through the LT BLU wire. The current through the bulbs heats the Turn Flasher. It opens and closes to flash the Left Turn Lamps.

The Right Turn Lamps operate in a similar way when the Turn Right Switches are closed to the right.

If the Brake Switch is closed at the same time that the Turn Left or Right Switch is closed, the Turn Lamps all continue to receive power through the Turn Flasher. The LH Stop/Turn Lamp at the rear turns on, as long as the Brake Switch is closed.

HAZARD LAMPS
If the Hazard Switches are moved to the "HAZARD" position, the Stop/Turn Lamps will flash simultaneously. In this situation, power for all the lamps comes through the Hazard Flasher.

FRONT MARKER LAMPS
The Front Marker Lamps can be lit by either the Park Lamps or the Turn Lamps. Neither of the two wires to each of the marker bulbs is a ground wire.

With the Park Lamps on, battery voltage is supplied through the BRN wires to both Marker Lamps. The path to ground for the marker bulb is through the Turn Lamps. The small Marker Lamp bulbs light up, but not the larger turn bulbs.

When the Turn Lamps are on, but not the Park Lamps, battery voltage is applied through the LT BLU and DK BLU wires to the Marker Lamps. They glow since they are grounded through the entire Park Light system. If both the Park Lamps and a set of Turn Lamps are on at the same time, the marker bulb for that side will not light up. With battery voltage on both sides of a bulb, it will not glow. When the Turn Lamps flash off, however, the Marker Lamp bulb on that side will come on since it is now grounded through the Turn Lamps. This circuit makes the turn and marker bulbs flash out of step with each other when the Park Lamps are on.

With Daytime Running Lamp (DRL) equipped vehicles, the Front Marker Lamps will not flash when the turn signals are applied. They will turn on only when the Park Lamps are turned on. The Front Marker Lamps for DRL vehicles are not grounded through the turn signal bulbs, but are grounded through ground CKT 150.

CENTER HIGH MOUNTED STOPLAMP (CHMSL)
The Center High Mounted Stoplamp receives voltage through the Brake Switch when the brake pedal is depressed. If the Hazard Switch is moved to the "HAZARD" position, voltage to the Stop Lamps is interrupted, but the Center High Mounted Stoplamp will light with the brake pedal depressed.