The park lamp are operated by the headlamp switch or twilight sentinel feature. When the headlamp switch is in the PARK position it sends a ground signal to the BCM. The BCM receives the ground signal from the headlamp switch and then sends a ground signal to terminal 1 of the park lamp relay K130 energizing the relay coil. The headlamp switch also sends a redundant ground signal to terminal 1 of the park lamp relay K130. The BCM supplies voltage to the park lamp relay coil via the exterior lamps power circuit.

Fused battery voltage is supplied at all times to park lamp relay internal switch contacts. When the park lamp relay K130 is energized the internal switch closes. The park lamp relay supplies B+ is to fuses #23, #26 and #30. Fuse #23 supplies B+ to the LH park lamp and the LH outside taillamp. Fuse #30 supplies B+ to the RH park lamp and the RH outside taillamp. Fuse #26 supplies B+ to the LH and RH front side marker lamps, the LH and RH rear license lamps, and the LH and RH inside tailamps.

The LH and RH park/turn signal lamps are permanently grounded to G103. The LH and RH inside taillamps are permanently grounded to G400. The LH and RH stop /taillamps are permanently grounded to G400. The LH and RH rear license lamps are permanently grounded to G400. The LH front side marker lamps are grounded in series parallel with the LH front turn signal lamp and the RH rear turn signal lamps. The RH front side marker lamps are grounded in series parallel with the RH front turn signal lamp and the RH rear turn signal lamp.

All of the exterior lamps (including the front side marker lamps) will illuminate when the park lamp relay is energized. , Because the front side marker lamps are wired in series with the turn signal lamps they will not illuminate when B+ is applied to the turn signal lamps. When the turn signals flash the front marker lamps will not illuminate and then front side marker lamp will illuminate when the turn signals go off.

Fuse #12 supplies B+ to the stoplamp switch at all times. When the brake pedal is pressed, the stoplamp switch supplies B+ to the LH and RH stoplamps and also to the auxiliary brake lamp. The LH and RH stoplamps and the auxiliary brake lamp are permanently grounded to G400.

Fuse #3 supplies B+ to the turn signal lamp flasher K10 through the hazard warning switch. When the turn signal switch is engaged to the "TURN LEFT" position, pulsating voltage is supplied from the turn signal lamp flasher K10 to the LH turn indicator, to the LH park/turn signal lamp and to the LH rear turn signal through the turn signal switch. When the turn signal switch is engaged to the "TURN RIGHT" position, pulsating voltage is supplied from the turn signal lamp flasher K10 to the RH turn indicator, to the RH park/turn signal lamp and to the RH rear turn signal through the turn signal switch. The LH and RH turn indicators are permanently grounded within the instrument cluster to G103. The LH and RH park/turn signal lamps are permanently grounded to G103. The LH and RH rear turn signals are permanently grounded to G400.

When the low beam relay K131 is energized, B+ is supplied to fuse #31. Fuse #31 supplies B+ to the turn signal switch. When the turn signal switch is engaged to the "TURN RIGHT" position, B+ is supplied to the RH cornering lamp through the turn signal switch. When the turn signal switch is engaged to the "TURN LEFT" position, B+ is supplied to the LH cornering lamp through the turn signal switch. The LH and RH cornering lamps are permanently grounded to G103.

Fuse #12 supplies B+ to the hazard warning switch at all times. When the hazard warning switch is pressed to the ON position, pulsating voltage is supplied from the turn signal lamp flasher K10 to the LH and RH turn indicators, to the LH and RH park/turn signal lamps and to the LH and RH rear turn signals through the hazard warning switch. The LH and RH turn indicators are permanently grounded within the instrument cluster to G103. The LH and RH park/turn signal lamps are permanently grounded to G103. The LH and RH reear turn signals are permanently grounded to G400.