2011 F350 Ambient Sensor code

LaMont Owner/Technician Smithville, Ohio Posted   Latest   Edited  
Question
Driveability
2011 Ford F-350 Super Duty XL 6.7L (T) 6-spd (6R140)—1FDRF3GT5BEB06016
P0073 - Ambient Air Temperature Sensor Circuit "A" High
MIL On

This truck does not have an ambient sensor. It does not have climate control, and it does not have heated mirrors.. Has P0073 (ambient sensor code). Code will not clear. MIL light comes on 2nd trip after attempting to clear code. Ambient temperature PID reads -40 Degrees. Also, I don't know if this is related, but there are other codes from additional repairs that were just performed, that are stored on the generic side. These codes will not clear, even though they cleared on the Ford side. I even tried unhooking the battery cables but they still did not clear.

Has anyone encountered these concerns, or does anyone have a fix? Thanks in advance for the help!

0
David Diagnostician
Independence, Louisiana
David Default
 

Is the passenger mirror broken? The sensor in the mirror assembly.

+1 Default Ð Bounty Awarded
LaMont Owner/Technician
Smithville, Ohio
LaMont Default
 

No. There isn’t a sensor on the mirror.

0 Default Ð Bounty Awarded
Robert Diagnostician
Ballston, New York
Robert Default
 

It is in the passenger side mirror. Common for aftermarket mirrors to be installed that do not contain the sensor which results in the code. Wires are still in the mirror connector in the door test them there. They all have that sensor from the factory regardless of options it is a vital input to the ecm.

+8 Default Ð Bounty Awarded
Agree
Helpful
LaMont Owner/Technician
Smithville, Ohio
LaMont Default
 

Thanks, I ’ll talk to the customer and find out if that mirror has been replaced.

0 Default Ð Bounty Awarded
Justin Technician
Concord, California
Justin Default
   

Since 2010 I think we’ve had these things called permanent codes . In ca they need a 15 warm ups and 200 miles since code cleared to clear those type codes before it can be smogged , but if you are missing that input from ambient temp sensor that can be an issue and a place to start

0 Default Ð Bounty Awarded
Caleb Diagnostician
Mishawaka, Indiana
Caleb Default
 

I agree with Robert Kenney. It should have one. You could also pull the door panel and see if the mirror connector is inside and use a simulator too make sure the PCM will show a value and go from there.

+1 Default Ð Bounty Awarded
LaMont Owner/Technician
Smithville, Ohio
LaMont Default
 

Thanks for responding. The wiring diagram for the ambient sensor shows connector 651 (without power mirrors) being in the passenger door. I wish I could post the diagram but i"m unsure how to do that. This makes me think that some of these trucks did not have a sensor. Or maybe the sensor is actually in the door? If not, is it possible that there could be an option in the PCM that could be…

0 Default Ð Bounty Awarded
David Diagnostician
Independence, Louisiana
David Default
 

There is not an option to turn the sensor off. This sensor has a very critical job for the emission system. My suggestion is to pull the door panel and check for a plug that is not attached.

+1 Default Ð Bounty Awarded
LaMont Owner/Technician
Smithville, Ohio
LaMont Default
 

Thanks, I'm going to do that tomorrow.

0 Default Ð Bounty Awarded
Chris Technical Support Specialist
Commack, New York
Chris Default
   

Fleet F Series (manual non tow mirrors) may have it in the grill. The -40 is the default value for open circuit of the iat. I was wrong about the location of the sensor and figured I would update it. Its not in the grille with base level mirrors, it is inferred. Cant have bad information out there. "NOTE: Fleet vehicles equipped with manual HVAC and manual aero style mirrors do not come…

+5 Default Ð Bounty Awarded
Helpful
Chris Technical Support Specialist
Commack, New York
Chris Default
 

I ran the vin this morning and saw this vehicle was equipped with telescopic mirrors as it was built. Run an OASIS through Motorcraft service, Double click the vin at the top and it will pull up an enhance build sheet. diag​.​net/file/f4svepphs… ( I know there is a detailed vehicle spec link in the OASIS itself, but more information is available when clicking the vin at the top…

+2 Default Ð Bounty Awarded
Philip Educator
Hemet, California
Philip Default
 

LaMont, find the pin on the PCM. It will have 5 volts on it. Short it to ground and see if it goes to maximum temperature. It's a two wire sensor with one being ground. You could probably stick a fixed resistor in there or you could simply wire in a ambient temp sensor. Pretty easy.

0 Default Ð Bounty Awarded
LaMont Owner/Technician
Smithville, Ohio
LaMont Resolution
 

Thanks to everyone for their help. I ended up calling the customer and asking him if the mirror had ever been replaced. He told us that it had been replaced a few years ago with a cheaper one and that the check engine light had been on for a long time. This is the first time we have ever seen this truck. I removed the door panel and found the wires hanging but no sensor. Installed a sensor and…

+4 Resolution Ð Bounty Awarded
Geoff Diagnostician
Lahaina, Hawaii
Geoff Default
 

We deal with 15 year old stuff out here and I'm bound to run into this issue. What kind of sensor were you able to get, if the correct sensor is part of the OE mirror assembly?

0 Default Ð Bounty Awarded
Chris Technical Support Specialist
Commack, New York
Chris Default
 

The part is serviceable separately from the mirror. I don't have a part number though.

+1 Default Ð Bounty Awarded
LaMont Owner/Technician
Smithville, Ohio
LaMont Default
   

The only place I could find a sensor was at the Ford dealer. P/N 3F2Z9G756AC the part was actually a Motorcraft part DY-1160. Nobody had a pigtail for the sensor so I had to improvise. The pins in the sensor are round and very small. I found an old PCM connector off of something that had the same size pins. I took 2 of the wires from that connector and epoxy'd them into the connector of the…

+1 Default Ð Bounty Awarded
Geoff Diagnostician
Lahaina, Hawaii
Geoff Default
 

Great ! Thanks

0 Default Ð Bounty Awarded
Chris Technical Support Specialist
Commack, New York
Chris Default
 

The OEM pigtail for that sensor shows as WPT-1306. OEM wiring diagrams sometimes have the pigtails listed. diag​.​net/file/f2s7c0b42…

0 Default Ð Bounty Awarded
LaMont Owner/Technician
Smithville, Ohio
LaMont Default
 

Thanks for the info. I think that’s the number the Ford dealer gave me, however, no one around had one and I had to get the truck finished up. I’m sure the part number will help someone else in the future though. Good job.

0 Default Ð Bounty Awarded