Noob with electrical issues

STeeleMarine

New member
Hi guys! First post, so here goes. I am the proud new owner of a '14 F-type S... 35k miles and Firesand- Velocity Tune. Gorgeous car that I had shipped to me and am in the getting to know it phase. On way down, the seller told the transport driver to disconnect the battery while it was in transport. Well, the car was loaded and unloaded a few times and it arrived to me with a dead hooked up battery. Not knowing the car, I stood by while the driver hooked up his power pack to the front terminals and tried to jump the car. I have since read here that this is a no-no and the front terminals are only supposed to be used to gain access to the rear trunk for battery access. After a few tries and a noticeable arc, he tried the rear trunk method and the car started. It instantly showed an airbag light that the seller said was not present before. I let the car run in hopes of letting it charge the battery for awhile, and when I cycled the power- it started again, no problem (air bag light still on).

The next day... road trip day to get the car home... 700 miles. Early morning departure, and no problems for the first 6 hours. The first warning was a Charging System Failure red display light came up, and the "press ok to acknowledge". The next was a little blip or two on the main console, radar detector blipped, stereo blipped, and what seemed like a ground fault. I pulled off to the shoulder, and cycled the power (car started no problem) and the warning lights went away. Weird! I progressed on for another 30 minutes or so stressing out, and got another CSF light and a few more power blips. So, it's into the Autozone for a battery test. Battery checked out, and I went immediately to the auto shop around the corner for an alternator test. The alternator tested weak, so we threw a new one in and off I went, 2 hours behind schedule now. The next round was some 4+ hours later... another CSF light and since my next stop was some 30 miles away, I decided to press on. I got to the destination, and was out of the car for 5 minutes or so... got back in, and she fired up again. No lights other than the airbag. 1 hour and 39 minutes to the house, and I am on a prayer! The last half hour of the trip, I got the CSF light accompanied with a CEL. Now I stress for the last half hour and finally get the car home and in the garage at 2130h at night.

The next day, it's OBDII time to pull codes:
P0055- Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 3 (Permanent)
P0688- Engine Control Module/Powertrain Control Module Power Relay Sense Circuit (open code)
P0563- System Voltage High (Pending code)
U0447- Invalid Data Received From Gateway A (Pending code)
U0405- Invalid Data Received From Cruise Control Module

Does anyone have any ideas on where to go next? There's no warranty on the car, so this is on me. My last project was a WRX STi that we put a 356 shell on it, and we had to dig electrical gremlins out for months, so I feel confident about doing the work.

I read on other threads about the following:
-Unplugging 3 terminals on the ECM in the passenger's footwell and reset
-Replace battery
-The car has a Velocity Tune, will any of this affect the tune state?

The builder recommends a flash to original map, and then to reinstall the Velocity tune. Replacement of the battery was recommended too.

At this point looking for a consensus to where to go and what to poke around with. Am I in a bad place due to this transport driver's mistake?

Help and thanks for any input to steer me in the right direction
 
Have you had a look at the American forum?

Would also search for at the individual codes themselves

Most likely linked to

P0563- System Voltage High (Pending code)

Think the others maybe byproducts of the system voltage issue.
P0055 Seems very common on these cars think it’s just a stored code, not associated with your problem
 
P0055- Heated Oxygen Sensor Heater Resistance Bank 1 Sensor 3 (Permanent)


HO2S Heater Resistance (Bank 1, Sensor 3) - No sub type information

- Heated oxygen sensor heater circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Heated oxygen sensor failure


= Refer to the electrical circuit diagrams and check heated oxygen sensor heater circuit for short circuit to ground, short circuit to power, open circuit, high resistance

= Inspect connectors for signs of water ingress, and pins for damage and/or corrosion

= Refer to Electronic Engine Controls V6 S/C 3.0L - Petrol - Heated Oxygen Sensors (HO2S), Diagnosis and Testing - pinpoint test A



Suggest O2 sensor failed?
 
I have a separate post on the Seppo site, and thought I would double down on my knowledge base.

I have a trickle charge on both batteries, and have replaced the large battery in the event it had a dead cell. Today I am going to flash the OEM map, and refresh the VAP tune.

From there it's test miles to see if it starts acting up again.
 
Back
Top