DeVille V8-273 4.5L (1989)
Radiator Cooling Fan Motor: Reading and Clearing Diagnostic Trouble Codes
Fig. 47 Climate Control Panel DeVille & Fleetwood
1.
Turn ignition On, then depress Off and Warmer buttons on the Climate Control Panel (CCP), Fig. 47. Hold buttons until all display panel
segments illuminate, indicating beginning of diagnostic readout. The two display panels must be illuminated to ensure all segments are
operating. Do not attempt diagnosis unless all segments appear, as a misdiagnosis could result. If any segments are inoperative, the
display panel must be replaced.
2.
Depress and release ECON button on CCP. Display will switch from Code .7.0 to Code F.8.5.
3.
Exit diagnostic mode by depressing AUTO button on CCP or turn ignition Off for ten seconds until the temperature setting is displayed.
