Display Diagnostics (OTIS)

Temperature
OTIS receives Programmable Communications Interface bus (PCI bus) messages from the Body Control Module (BCM) for all displayed information except the compass display If a dash (-) is displayed, OTIS is not receiving a PCI bus message from the BCM. To check out the PCI bus line and the BCM use the DR18 III~ scan tool and proper Body Diagnostic Procedure.

If OTIS displays SC instead of a temperature reading, the PCI bus message is more than 83° C (181° F). Check for a short circuit between the temperature sensor and the BCM.

If OTIS displays OC instead of a temperature, the PCI bus message is less than -55° C (-67° F). Check for an open circuit between the temperature sensor and the BCM.

Average Fuel Economy
OTIS receives average fuel economy information from the BCM over the PCI bus line. If OTIS displays a dash (-) instead of an average fuel economy value, it is not receiving a PCI bus message for the average fuel economy from the BCM. To check out the PCI bus line and the BCM use the DRB III� scan tool.

Distance To Empty
OTIS receives distance to empty information from the BCM over the PCI bus line. If OTIS displays a dash (-) instead of a distance to empty value, it is not receiving a PCI bus message for the distance to empty from the BCM. To check out the PCI bus line and the BCM use the DRB III� scan tool.

Instantaneous Fuel Economy
OTIS receives instantaneous fuel economy information from the 18CM over the PCI bus line. If OTIS displays a dash (-) instead of an instantaneous fuel economy value, it is not receiving a PCI bus message for the instantaneous fuel economy from the BCM. To check out the PCI bus line and the BCM use the DRB III scan tool.

Elapsed Time
OTIS receives a PCI bus message containing elapsed time information. If OTIS displays dashes -.- instead of the elapsed time, it is not receiving a PCI bus message for the elapsed time from the BCM. To check out the PCI bus line and the BCM, use the DRB III scan tool.