Code P0514

[RAMINSPEED]

What does the P0514 code mean?

 

[mberry]

P0514 Battery Temperature Sensor Performance / Rationality

 

[Matt400]

What does the P0514 code mean?

What did you get done to fix that code?

 

[ATVX4]

I just got back from the dealer for the same code. This is the second time in three weeks. It is getting old. It seems to happen only when it gets Very cold, around 0. They say that nothing is wrong, It's a false code. They are woking on a fix , so I am told.

 

[yycguy]

I have had the same code as well, seems to be programing issue with the ecm and cold temperatures!

 

[RAMINSPEED]

I was told by the dealer the code is caused because I shut the truck off before it had finished the grid heater cycling.

 

[ATVX4]

This is getting really old! Last Wed. I got this code cleared. I started my truck up after work today and it was back. This is the third time since Christmas! Are you guys having this kind of luck with this? Any fixes?

 

[AJain]

Service manual info on Battery Temp Sensor

Here's some text straight outta the Service Manual which might help.

Or bring up even more questions... .



"The Battery Temperature Sensor (BTS) is attached

to the battery tray located under the battery.



"The BTS is used to determine the battery temperature

and control battery charging rate. This temperature

data, along with data from monitored line

voltage, is used by the PCM (ECM Diesel) to vary the

battery charging rate. System voltage will be higher

at colder temperatures and is gradually reduced at

warmer temperatures.



"The PCM sends 5 volts to the sensor and is

grounded through the sensor return line. As temperature

increases, resistance in the sensor decreases

and the detection voltage at the PCM increases.

The BTS is also used for OBD II diagnostics. Certain

faults and OBD II monitors are either enabled

or disabled, depending upon BTS input (for example,

disable purge and enable Leak Detection Pump

(LDP) and O2 sensor heater tests). Most OBD II

monitors are disabled below 20°F. "



aJ

 

[DJamrose]

i've been driving around with mine for who knows how long whats the deal if i would have never checked for the codes i wouldn't have even known they were there. the moral of the story is it isn't hurting anything to have it tripped.