LS to LT front wiring harness fog light upgrade

[familyman77]

Greetings all, this is my first post on the site and as I'm sure is often the case with newbs, I'm looking for help. I have an 07' LS that I just upgraded with factory fog lights. I pulled a VIN from a 10' LT to use for ordering the wiring harness from GM Parts Direct.

All went well except for the two remaining plugs on each side just below the headlights. Still not sure what those are for, but everything else was plug and play. The only other difference in the harness was the ambient air temp sensor wiring ruins up the passenger side instead of the driver's side where it was originally.

Before reassembly I tested everything, all was good. So I thought. Seems I didn't notice the "OC" on the mirror where the temperature should be. I know that the "OC" stands for open circuit, but everything is good. Even replaced the temp sensor and my mirror still reads "OC".

Anyone else run in to this issue who's figured it out that might be able to shed some light?

Thanks in advance!

 

[itsstopher]

to the club 

Can you have it scanned for body codes?

Temperatures lower than -40?C (-40?F) will be out of the mirrors temperature range which OC will be shown on the temperature display.

In cold temperatures such as 3?C (37?F) or below, the temperature display will show ICE when the ignition is first turned ON. The display will toggle between ICE and the actual outside temperature until the temperature update process is complete.

In colder outside air temperatures, the ambient air temperature sensor will raise in resistance. The inside rearview mirror will show a colder temperature on the display.

As the outside air temperature gets warmer, the ambient air temperature sensor will lower resistance. The inside rearview mirror monitors this change and will show this as a warmer temperature on the display.

Temperatures exceeding 62?C (143?F) will be out of the mirror's temperature range and SC will be shown on the temperature display.

 

[familyman77]

Well, I'm a firm believer that starting this type of thread and not finishing it it kinda like taking a dump and not flushing the toilet...

So, update:  I decided to check for continuity from the sensor to the mirror by disconnecting the air temp sensor behind the grill and disconnecting the wiring behind the mirror.  I jumpered the two wires at the sensor and checked for continuity at the mirror.  No continuity.  Then I ran out of time because I got an emergency work call and since then we've had terrible weather out here in Colorado Springs.

Next weekend we're supposed to have good weather so I'll hopefully be able to trace the wiring back and continue to troubleshoot the problem.

Updates to follow.

 

[Stefan N]

Time to flush the toilet

 

[mjrowley]

man the toilet is resally starting to smell.