Hi- I have a 2018 F150xlt 5.0. My check engine light came on the other day. My truck had shuddering/shut off. The navigation screen was flickering on and off when it was idling werid. I ended up driving it to the dealer. After waiting 2 hours I had to leave before they got to diagnose it. They said it might not be under warranty since I have 57K miles on it.

Anyway I drove it and then it seemed fine. My CEL went off. But now its back on. Truck seems to be running fine. I have codes P0600 and P0073. Any ideas on what it could be. I can schedule an appointment at the stealership but figured I would check with you guys first.



Thanks,
Joe

 

"P0600 FORD Possible Causes What does this mean? Faulty Powertrain Control Module (PCM) Powertrain Control Module harness is open or shorted Powertrain Control Module circuit poor electrical connection Low battery voltage"

Read more: https://www.autocodes.com/p0600_ford.html
Looked up the P0600 code and this popped up online

 

I would look at the AAT first. The P0600 and other issues were probably caused by the low engine rpm when it was running poorly.

P0073 – Ambient Air Temperature Sensor Circuit High

Description:

This DTC sets when the AAT sensor signal is greater than the self-test maximum.

Possible Causes:

• AAT circuit open
• AAT circuit short to voltage
• Damaged AAT sensor

P0600 - Serial Communication Link

Description:

This DTC sets when an error occurs in the PCM.

Possible Causes:

• Software incompatibility issue
• Damaged PCM

 

Maybe a failing battery low voltage thing? That's a question. What about just having the battery tested, and checking the battery voltage while at idle and at a higher RPM while under load, maybe fan on high, lights on, seat warmers functioning, wipers running but not on a dry wind shield, maybe pick a few of those as a suggestion for thought.