General Information

At idle with Air Conditioning off the temperature gauge will rise slowly to about 5/8 gauge travel, the fan will come on and the gauge will quickly drop to about 1/2 gauge travel. This is normal.

Additional diagnostic information can be found at Body Control Module, Testing and Inspection, Diagnostic Charts. Testing and Inspection

Please also note that Instrument Panel Calibration can be found at Cluster Diagnostics/Calibration Under Testing and Inspection at the system level. Testing and Inspection