GMC 12088594 Relay, Electronic Brake Control

Except for the 1990-91 Eldorado and Seville, with a turn signal/hazard module behind the center of the instrument panel, all other cars have different flashers for turning signals and hazards. If you are to replace them, start by taking out some sound insulator panel(s) beneath the instrument panel by removing them from their fasteners. From here, you can now disconnect the wiring connector and remove the flasher from its clip. After that, connect it to the wiring connector and replace it in order to install new one. Finally, put back sound insulator panel(s).

The turn signal flasher is usually a small canister or a box-shaped unit generally positioned in or around the fuse block and with later models the turn signal and hazard only flasher are usually combined into a single unit. In its normal condition, a clicking sound can be heard during its operation; If the turn signals fail on one side along with the flasher does not click then there is, probably, a defective turn signal bulb present. If both the turn signal lights do not blink the cause may likely be a blown fuse, a defective flasher unit, a bad switch or a bad connection. An electrical check of the car can show a problem of a turn signal fuse which could be blown, however, before replacing the new one, one should check the wiring for shorts. To remove the flasher, you just pull it out from the fuse block or wiring harness and ensure that you get the correct unit before fitting it for which you have also to reverse the removal process. On the later models, the hazard flasher co-ordinates with the turn signal flasher and causes all four turn signals to flash at once. It is checked in the same manner as the turn signal flasher, while to replace it, it is pulled out of the back of the fuse block as previously described, with the only precondition being that the new unit is to be an exact swap for the old unit, which also follows the reverse procedure of pulling.

Many of the electrical gadgets in the motor vehicle employ the services of relays to transfer the electrical signal to the particular component, and if at all a certain relay is faulty, the particular component cannot function as expected. The diverse relays can be found at several places and are as follows in the following order. In case of a faulty relay, it can be withdrawn and tested with the assistance of the dealer's service department or some repair shop; all of the faulty relays must be replaced jointly.

The hazard flasher is located in the convenience center, installed in a clamp attached to the base of the steering column support inside the car.

They are located under the instrument panel in the steering column area.

To locate the flasher unit, remove the driver's side knee bolster.

The problem could be due to a blown fuse, a faulty flasher unit, a broken switch, or a loose/open connection.

The turn signal flasher is located in the convenience center under the dash.

Start by disconnecting the negative battery cable and removing the steering column covers and driver's knee bolster.

If a relay is faulty, the corresponding component will not function properly.

When replacing flasher units, it is important to buy a replacement of the same capacity. You should check the new flasher against the old one to be assured of the proper replacement.

They are checked as previously mentioned in the context.