1994 Ford F-150 Repair Question
Relay control module 1994 f-150
The same problem showed up 6 months ago, but this time the fuse was not blown. I took it to a mechanic who replaced (he said) the relay control module ( part #F6DF-12B577-AA) . does this sound right, and how do I find the location of the module on the truck and how easy is the repair myself if I get the part? Thank you
The part number is for a CCRM (Constant Control Relay Module) but I don't believe the F150 even has one and the cars that did, it housed the A/C relay, cooling fan relay and fuel pump relay, all of which this truck has individually.
OK. So how would I go about trying to find out what the problem is?
3 questions asked
Sounds like an issue with the Vehicle Speed Sensor but it needs to be diagnosed properly.
I understand you want to troubleshoot the VSS. You will need a lab scope for that.