* Under the dash: This is a very common location for the flasher relay. Look behind the instrument panel, often near the steering column or fuse box.
* In the fuse box: Some vehicles integrate the flasher into the fuse box itself. Check your fuse box diagram.
* Behind the glove box: Less common, but possible.
* Under the hood: While less likely for the turn signal flasher specifically, some electrical components are located in the engine compartment.
To find it:
1. Consult your owner's manual: This is the best place to start. The manual should have a wiring diagram or a parts diagram showing the flasher's location.
2. Check the fuse box: Look for a relay that's labeled "turn signal," "flasher," or with a similar designation. Many fuse boxes have a diagram on the inside of the cover.
3. Visual inspection: Carefully examine the areas listed above (under the dash, behind the glove box, etc.). The flasher is usually a small, square or rectangular metal or plastic unit. It might be attached to the chassis with a screw or clip.
If you can't locate it, a mechanic or auto parts store specializing in classic vehicles may be able to assist. Providing the specific model of your 1977 Dodge van motorhome would help them narrow down the possibilities.
