1997 Neon code 44

Hi, I have a 1997 Neon with two codes that showed up on diagnosis (engine
light codes). I disconnected the battery to clean the posts, so I can
understand the 12 code I got (Direst battery input to PCM was disconnected
within the last 50 key-on cycles). However it's the second code that I don't
understand (battery temp sensor volts out of range). Is it an actual sensor
and does this code mean it has failed? If so, what is an approximate cost of
these sensors and is it even nescessary to replace (I live in Edmonton,
Alberta Canada where the temperature has actually warmed up a lot to -23
cescius). I really appreciate your taking the time with my post, thanks!

 

The battery temperature sensor is located at the front of the battery tray next
to the battery hold down clamp. Its about the size of a pea and is retained by a
pressed steel hex nut. Its connector is under the battery tray. The following
info is from the Chrysler neon manual :... "The sensor is used to determine the
battery temperature.This data ,together with the monitored line voltage, is used
by the PCM ( powertrain control module) to vary the battery charging rate.System
voltage will be higher at colder temperatures and is gradually reduced at warmer
temperatures.The battery sensor is also used for OBD11 diagnostics. Certain
faults and OBD11 monitors are either enabled or disabled depending upon battery
temperature sensor input ( example: disable purge and EGR, enable LDP). Most
OBD11 monitors are disabled below 20 degrees F". .....From the fuel system
section of the manual...."The PCM uses the temperature of the battery area to
control the charge rate.The signal is used to regulate the system voltage. The
system voltage is higher at cold temperatures and is gradually reduced as
temperature around the battery increases."...............To test the sensor
you`ll have to remove it and take it indoors unless you have a heated garage:
Disconnect the two-wire pigtail harness from the sensor.Attatch ohmmeter leads
to the wire terminals of the pigtail harness. At room temperature of 25 degrees
C an ohmmeter reading of 9000 to 11000 ohms should be observed.If out of spec
replace. I`ve no idea of the cost but it looks cheap enough.Good luck.

 

Wow! Thank you very much! That was more information than I could hope for,
thanks!