adallak Posted May 27, 2005 Report Share Posted May 27, 2005 A friend of mine has a 93 Deville I tried to enter the diagnostics but his system seems to be different. Anybody with that model year? Thanks s in advance. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
poopdeville Posted May 27, 2005 Report Share Posted May 27, 2005 Glad to help out here... "Entering Service Mode" Turn ignition key to on position. Simultaneously push the "off" and "warmer" buttons on the climate control for 3 seconds Visually check that "-1.8.8" illuminates on the climate control panel and that "8.8.8" illuminates on the fuel data centre after the warmer and off buttons are pushed for 3 seconds. After the service mode has been entred, all ECM diag trouble codes will be displayed automatically. ".E" designates the start of the history codes and ".E.E" designates the start of the current codes. If you miss writing one down, start again. After the ECM codes are displayed, the BCM codes will follow automatically. ".F" designates the beginning of the history codes and ".F.F" designates the start of the current codes. If you miss writing one down, start again. After all codes are displayed or no codes are present, the fuel data centre displays ".7.0"... this indicates the system is ready for further instructions or testing. To clear the codes, the fuel data centre must first diplay the ".7.0" system ready indicater. To clear ECM codes, simultaneously press the "off" and "hi" buttons on the climate control panel until "E.0.0" is displayed. To clear the BCM codes, simultaneously press the "off" and "low" buttons on the climate control until "F.0.0" is displayed. Turn the key off and away you go. Good Luck, Mike P Link to comment Share on other sites More sharing options...
adallak Posted May 27, 2005 Author Report Share Posted May 27, 2005 Thanks Mike for the detailed instructions! The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
poopdeville Posted May 27, 2005 Report Share Posted May 27, 2005 No stress mate, just had to open my book and type REAL slow... hehehe. Cheers! Glad to help out (finally)... MP Link to comment Share on other sites More sharing options...
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