98 BONNEVILLE HEADLIGHT RELAY / LCM QUESTION

Carbon88

My headlights and fog lights stoped working. The light switch has been replaced with an OEM unit. I purchase a new headlight relay . However, I cannot locate the access point to replace it. I was also informed these cars do not have a headlight relay.

Also, could it be a LCM that needs to be replaced?

Any input would be appreciated.

John

thecardoc3

With any problem like this, just tossing parts at it can be the most expensive way to try and solve it. What really needs to be done is test and prove what is wrong. Have you tested for power to the headlight switch on both the orange and red wires? Does the flash to pass function work? Is there power to the dimmer switch red wire all the time and the yellow wire when the headlights are turned on?

The LCM (light control module) turns the headlights on in the automatic mode, the headlight switch operates the lights in manual mode, so the LCM isn't a likely possibility.

There is no headlight relay in the schematic that I found. Do you have a wiring schematic to reference for the headlights?