Driver side just under the dash. It's a black box near the right side of the steering shaft.
All lighting is controlled by the LCM (Light Control Module)
Check fuse for brake switch, check switch, or light control module,
Under the dashboard, directly above the gas padle. You have to look close cause it is hidden in it's mounting bracket.
Your Car has a LCM (Light Control Module) and it sound like the relays are going bad. You will need a new LCM or have it rebuilt.
The headlight relay is in the Light Control Module (LCM).
Yes, they are identical
Under the drivers side of the dash board above the gas pedal.
Try a used one from a local wrecking yard.
On a 1990 Canadian Crown Victoria, the daytime running light (DRL) module is typically located under the dashboard, near the driver's side, attached to the steering column or the firewall. It can also sometimes be found in the engine compartment, mounted to the relay box or close to the headlight assembly. If you're having trouble locating it, referring to the vehicle's service manual can provide specific guidance.
on my 98 crown vic you have to push in the head light switch
Antilock brake system
All lighting is controlled by the LCM (Light Control Module) it located under the dash above the transition bump on the drivers side.