78 Interior Light Dimmer Relay

[Brian]

Need to know where the relay is for the interior dimmer switch on a 1978. I've been told it is located ont the driver's side post and also been told it is located under the console. Can not locate and I have no interior light. I believe this relay controls the "fading" dimming effect. thank you

[Wayne W.]

Re: 78 Interior Light Dimmer Relay

The dimmer for the dash lights is on the headlight switch, but it does not dim the interior lights. The same switch does mechanically control the interior light by grounding, on and off. I dont have a 78 diagram here at home, but typically the delay timer is under the RH dash pad. That may be what you are looking for.

[Greg A.]

Re: 78 Interior Light Dimmer Relay

Brian,

The timer relay is an orange box about the size of a pack of cigarettes. I believe in early 78 production it was behind the glove box (you'll need to pull the box interior out to get to it.) At some point it moved to the driver's side under the dash, near the fuse box. My early Jan 78 has it on the driver's side.

If you need more info, let me know and I'll pull out the AIM and look for sure.

Greg