I am replacing the instrument circuit board. But to order one I need to know if I have warning lights or not. How can I tell.


Asked by Sep 19, 2014 at 10:56 PM about the 1977 Ford F-150

Question type: Maintenance & Repair

I bought a 1977 f-150 custom.  Don't have an owners manual.  I know this is a dumb
question and should know, but I don't.  None of the repair manuals mention Warning
lights.  After laughing any help will be appreciated.

3 Answers


Not completely sure about yours but on most you can Remove your instrument cluster. When doing so you will see small light bulbs inserted in the circuit board. Most all of these will be back lighting. But with close inspection of the circuit board you can follow the circuits connecting all theses dash lights together. Any of the bulbs that appear to be on another circuit of the circuit board will be warning lights.


If your cluster has gauges for oil, amp, fuel and temp the only warning lights will be located on either side of the turn signal lights and the high beam indicator. if you don't have gauges for amp and oil there will be warning lights there. If you have the cluster out already the IC board will have a Ford engineering number on it, any good Ford parts man can cross it over and get you the correct board..

1 of 1 people found this helpful.

I have the number. But I was trying to order from Bronco Graveyard or LMC trucks. Their numbers don't match. I will go to the dealer and get them to tell me which board to order.

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