Trying to figure out a no crank condition on our 08 Expedition.
About a month ago it didn't want to start after sitting for a few weeks. I figured it was the battery as it was about 5 years old. It turned out it was dirty battery terminals and started up after cleaning them.
Now, after sitting for another few weeks it doesn't want to start again. I don't think the conditions are related but mentioned the earlier issue as it could be a clue.
I tested with a different key, switched out the battery, performed voltage drop test on all the cables. Voltage is 12.7.
The primary symptom is no dash lights, text or sound when the key is switch to run, and no crank with the key in the start position. All the accessories seem to be working as normal. I've got a slow blinking PATS light with key off which does not change with the key in the run position. The key switch seems to be working fine as the key switched accessories go on and off as expected.
I've ohm'ed out all the fuses (all good) and swapped all the relays around but no joy.
The last clue is there seems to be no OBDII connectivity as none of my blue tooth dongles will connect.
Please make me feel stupid and point out the obvious things I'm overlooking.
About a month ago it didn't want to start after sitting for a few weeks. I figured it was the battery as it was about 5 years old. It turned out it was dirty battery terminals and started up after cleaning them.
Now, after sitting for another few weeks it doesn't want to start again. I don't think the conditions are related but mentioned the earlier issue as it could be a clue.
I tested with a different key, switched out the battery, performed voltage drop test on all the cables. Voltage is 12.7.
The primary symptom is no dash lights, text or sound when the key is switch to run, and no crank with the key in the start position. All the accessories seem to be working as normal. I've got a slow blinking PATS light with key off which does not change with the key in the run position. The key switch seems to be working fine as the key switched accessories go on and off as expected.
I've ohm'ed out all the fuses (all good) and swapped all the relays around but no joy.
The last clue is there seems to be no OBDII connectivity as none of my blue tooth dongles will connect.
Please make me feel stupid and point out the obvious things I'm overlooking.
