What causes all the tail lights to come on at the same time?

What causes all the tail lights to come on at the same time?

The sequencer has electronic switches corresponding to the center, and outboard tail lights. When the turn signal switch and the brakes are applied simultaneously, the sequencer causes the turn signal to override the brake lights for the side chosen. Normally, applying the brake causes all the rear tail lights to come on at the same time.

Where is turn signal switch on Mercury Cougar XR7?

Disconnect the turn signal switch from the harness under the dash next to the steering column and check it according to Table 1. The table shows wire pairs that should be shorted together when the switch is in the position indicated. If any of the connections are open, replace the switch.

Is the turn signal switch on my Ford Cougar bad?

Ford has obsoleted this part but an electronic replacement is available from your parts dealer. If only one side flashes, the turn signal switch in the column is most likely bad. If only the front turn signal lights flash, the turn signal switch in the column is most likely bad.

Where does the power come from for the tail lights?

Power for the lights is fed through the flasher can to the sequencer and to the inner tail lights. The sequencer has electronic switches corresponding to the center, and outboard tail lights.

The sequencer has electronic switches corresponding to the center, and outboard tail lights. When the turn signal switch and the brakes are applied simultaneously, the sequencer causes the turn signal to override the brake lights for the side chosen. Normally, applying the brake causes all the rear tail lights to come on at the same time.

Disconnect the turn signal switch from the harness under the dash next to the steering column and check it according to Table 1. The table shows wire pairs that should be shorted together when the switch is in the position indicated. If any of the connections are open, replace the switch.

Ford has obsoleted this part but an electronic replacement is available from your parts dealer. If only one side flashes, the turn signal switch in the column is most likely bad. If only the front turn signal lights flash, the turn signal switch in the column is most likely bad.

Power for the lights is fed through the flasher can to the sequencer and to the inner tail lights. The sequencer has electronic switches corresponding to the center, and outboard tail lights.