Exterior Lights Circuit Description US

Voltage is available at all times from the PK LPS fuse to the headlamp switch from CKT 240 (ORN). Voltage applies to CKT 9 (BRN) with the headlamp switch in the PARK or the HEAD positions. The current flows through CKT 9 (BRN) and turns ON the following lamps:

The turn filaments in the park/turn lamps are the only lamps that receive the current from CKT 9 (BRN) and do not turn ON. The turn filaments do not turn ON because the voltage drop across the front side market lamps is much greater than the voltage drop across the turn lamp filaments.

Voltage applies from the turn-B/U fuse to the normally closed pole of the hazard switch in the turn/hazard switch when the ignition switch is in the RUN or the START position. With the turn/hazard switch in the LEFT TURN position, voltage applies from the switch to CKT 14 (LT BLU) and to CKT 18 (YEL). When the voltage applies, the following lamps flash ON and OFF as the turn/hazard flasher module controls the current flow:

The current flow continuously opens and closes the following right side turn lamp circuits:

With the park lamps ON and the turn lamps ON, voltage applies to both of the terminals of the front side marker lamp. When this occurs, the front turn lamp is OFF. When the front turn lamp is OFF, voltage applies to only one terminal of the marker lamp. When this occurs, the marker lamp will flash ON. The turn lamp and the marker lamp continue to flash ON and OFF in sequence until the turn switch is in the OFF position.

Voltage applies at all times from the STOP/HAZ fuse to the normally open poles of the hazard switch in the turn/hazard switch. Voltage applies to the turn lamps when the hazard switch is in the HAZARD position. When the voltage applies, all of the turn lamps and both of the turn indicators flash ON and OFF.

Voltage applies at all times from the STOP/HAZ fuse to the Brake Pedal Position (BPP) switch. Voltage applies from the Brake Pedal Position (BPP) switch through the turn signal switch to CKT 17 (WHT) when the brake pedal is depressed. When the voltage applies, the left side and the right side stop lamps turn ON. Voltage also applies in the following sequence when the brake pedal is depressed:

1. The Brake Pedal Position (BPP) switch
2. The center high mounted stop lamp (CHMSL)
3. CKT 17 (WHT)

The CHMSL turns ON when the sequence is complete. The turn signal switch operation does not affect the CHMSL.