Interesting problem here I am trying to figure out.

A while back, my car could no longer see the smart key (see this thread https://www.jaguarforums.com/forum/x...roblem-263680/ if you want to read about that fix).

Anyway, in summary, the fix for not finding the smart key was to setup the instrument cluster as a new module. I did that and the car now has two working keys. I noticed after doing this, that the ambient temperature reading displayed in the instrument cluster was WAY off. When it is 60F outside, it is reading like -10F give or take several degrees. After driving the car awhile (30+ minutes), the indicated temperature will climb and eventually read accurately. Since I couldn’t remember if the ambient temperature reading was accurate prior to programming the instrument cluster as a new module, and there was a slow rise to accuracy, I assumed the ambient temperature sensor was failing. So, I replaced the ambient temperature sensor in the LH (USA driver’s side) mirror. Unfortunately, there was no change and this did not fix the problem. I’m still seeing -10F degrees or so starting the car on a 60F day.

Anyone else seen this issue and solved it? Is there an ambient temperature calibration hidden somewhere in SDD?


Thanks,

Nick

 

Still having this issue. It has proven to be a tough one.
I have tried:
Configured Existing Module - Instrument Cluster (to ensure it has the latest software/update)
Configured Existing Module - Body Control Module A (to ensure it has the latest software/update)
Configured Existing Module - Body Control Module B (to ensure it has the latest software/update)
Configured Existing Module - HVAC Module (to ensure it has the latest software/update. HVAC module uses the ambient temp to help decide what it does to heat/cool cabin so I thought this might help)
Configured Existing Module - Gateway Module (to ensure it has the latest software/update and is transferring CAN data)
Service Function - Start Authorization Status (this was on the "highly recommended" list when selecting Electrical->Gauges->Ambient Temperature reads low & inaccurate)
Service Function - Immobilizer (this was to resend the "target identifier" to modules)

Does anyone have any other suggestions?