I've been getting an increasing number of 1115 and 1116 alerts with the hotter weather. They relate to the motor temperature sensors, reporting that there's some sort of mismatch in their readings. I presume it's time to do the "annual" maintenance cleaning, which I did myself (for the first time) over the weekend. Indeed, the motor fins were pretty well packed with leaves and other debris, and that got all cleaned out.
The car drives fine (it always has), but the 1115 / 1116 alerts remain. They are visible in the logs, and via the OVMSv3 module.
Besides the cleaning around the fins with a shop vac and air compressor, is there anything else I may have missed, for example a loose electrical connector or something related to the sensors themselves? Did I somehow not clean things well enough?
The issue was happening a number of years ago, and it was resolved during an annual service by the SC but they didn't indicate any particular fix being applied. Prior to the service, a discussion with the lead technician (one of the original Roadster techs) suggested that the sensors were internal to the motor, and the "only" way to fix them was to replace the entire motor. We didn't do that, but something else resolved the issue.
What is the root cause and proper fix?
The car drives fine (it always has), but the 1115 / 1116 alerts remain. They are visible in the logs, and via the OVMSv3 module.
Besides the cleaning around the fins with a shop vac and air compressor, is there anything else I may have missed, for example a loose electrical connector or something related to the sensors themselves? Did I somehow not clean things well enough?
The issue was happening a number of years ago, and it was resolved during an annual service by the SC but they didn't indicate any particular fix being applied. Prior to the service, a discussion with the lead technician (one of the original Roadster techs) suggested that the sensors were internal to the motor, and the "only" way to fix them was to replace the entire motor. We didn't do that, but something else resolved the issue.
What is the root cause and proper fix?