Overhead Console: Troubleshooting: Temperature

The CMTC receives Programmable Communications Interface (PCI) bus messages from the Body Control Module (BCM) for all displayed information except the compass display. If a dash (-) is displayed, the CMTC is not receiving a PCI bus message from the BCM. To diagnose the PCI bus line and the BCM, see BODY CONTROL MODULES - LIBERTY article.

If the CMTC displays a temperature more than 130°F (54°C), check for a short circuit between the temperature sensor and the BCM. If the CMTC displays a temperature less than -67°F (-40°C), check for an open circuit between the temperature sensor and the BCM.