I just replaced the cruise control switch modules from used parts off E-Bay. The backlighting does not come on, and I can't remember now if it did on the old modules. Is there a schematic available for the modules so I can identify the pins that power the backlighting? Or, do you know how to test the backlghting?

 

I see you don't have any answers yet, so I'll see if I can get things started. Have a look here for wiring pictorials, just enter your year model particulars. Search Wiring Diagrams

If you have a battery charger, you could use it as a 12 volt test power supply for the back lighting test. Some beginning thoughts for consideration, let us know how it goes.

 

Thanks! I found the schematics. No pin numbers, but I can figure it out. I have to pull the modules out, but I'll try to do that today.

 

The airbag came out easily and I found the lights were burned out. I was able to take the switch modules apart and replaced the lamps with LED-resistor units I had left over from replacing some of the instrument panel bulbs with LEDs.

I just removed the LED-resistor units from their plastic holder and soldered them in place with no other modification. Pin 1 on the connectors is ground, so I polarized the LEDs accordingly. Seems to work fine.

Thanks!

 

OK, good feedback & to hear all seems to have worked out well.