No Voltage To Check Engine Light

[bluebellbus]

Hi,

So I'm tackling gremlins left by idiot previous owners and one such gremlin is the lack of a check engine light. Now orgininally I thought that it was just a bulb that the previous owner pulled. Upon replacing the bulb I found that the check engine light still didn't work. I then measured the voltage at the wires with the ignition on and there was none! Could anyone tell me what the cause of this would be? All the other lights & gauges appear to be functioning.

Thanks

 

[larrym1961]

87-88 Mustangs had an inoperable check engine light if yours is one of those years. My 87 does not have one.

 

[bluebellbus]

Hmm, indeed it is an 88. Interesting that there is a place for it in the gauge cluster. So there's no indication if the computer is throwing codes?

 

[bluebellbus]

Also, is it true that the "Check Oil" light is also inoperable? There was no bulb in that slot as well...

 

[larrym1961]

Now the "check oil" should work it has lit up in the past on mine. If you have a low oil sensor on your oil pan that light should work.

The only way I know if there is a code present on mine is to check it periodically with a code reader.

 

[bluebellbus]

OK, well I actually have another "Check Oil" light in the lower warning light set near the ignition switch, not in the gauge cluster. But there's a spot for a lamp and I can clearly read "Check Oil" in the cluster where the missing bulb was. I was just curious about that. Thanks for the info!

 

[larrym1961]

The warning lights on the lower instrument cluster near the ignition switch was specific to the Mustang GT.

 

[Mustang5L5]

Also, is it true that the "Check Oil" light is also inoperable? There was no bulb in that slot as well...

The one in the cluster is inoperable. The 87-89 GT uses a 4-light pod on the passenger side of the cluster for the low oil light