Hi i have just changed steering wheel on fiesta zetec 2003 for a ST150 2005 steering wheel will the air bags and connections be compatable with each other.

. Were did you check for codes ? an what are you checking with ? you need a factory scan tool to check for those type codes ? or the light flashes codes
Lamp Fault Code (LFC)
When the RCM detects a fault, it will cause the air bag indicator to flash a coded sequence called a LFC. The code is one digit. The digit is indicated by a number of flashes with a 0.5 second interval between pulses. There is a 5 second pause between each display of an LFC.
Each LFC is flashed five times after which the air bag indicator will remain lit as long as the key remains in the RUN position. If there are multiple LFCs, each LFC will flash in order of priority.
Each LFC has one or more associated DTC.

1. Press TRIGGER. The RCM will run the On-Demand Self-Test and display On-Demand DTCs (reflecting hard system concerns) on the screen.

Restraints Control Module (RCM) DTC Index DTC LFC LFC Priority Description Action - Continuous 1 Air bag warning indicator is illuminated continuously Go To Pinpoint Test B . B1231 Continuous 3 Longitudinal acceleration threshold exceeded (Crash Occurred) Go To Pinpoint Test C . B1318 Continuous 4 Battery voltage low REFER to Section 414-00 . B1342 Continuous 2 RCM is defective DIAGNOSE and REPAIR other DTC(s) that are present. CLEAR the DTCs. REPEAT the self test. When or if DTC B1342 alone is present, INSTALL a new RCM. REFER to Restraints Control Module (RCM) in this section. CLEAR the DTCs. REPEAT the self test. B1462 N/A N/A Safety belt switch circuit failure Go To Pinpoint Test AN . B1869 Continuous or Tone 39 Lamp air bag warning indicator circuit open Go To Pinpoint Test AJ . B1870 Tone 41 Lamp air bag warning indicator circuit short to battery Go To Pinpoint Test AK . B1876 4 24 Safety belt driver pretensioner circuit failure Go To Pinpoint Test T . B1877 4 23 Safety belt driver pretensioner circuit open Go To Pinpoint Test S . B1878 4 22 Safety belt driver pretensioner circuit short to battery Go To Pinpoint Test R . B1879 4 36 Safety belt driver pretensioner circuit short to ground Go To Pinpoint Test AF . B1880 4 27 Safety belt passenger pretensioner circuit failure Go To Pinpoint Test W . B1881 4 26 Safety belt passenger pretensioner circuit open Go To Pinpoint Test V . B1882 4 25 Safety belt passenger pretensioner circuit short to battery Go To Pinpoint Test U . B1883 4 38 Safety belt passenger pretensioner circuit short to ground Go To Pinpoint Test AH . B1885 4 37 Safety belt driver pretensioner circuit resistance low on squib Go To Pinpoint Test AG . B1886 4 39 Safety belt passenger pretensioner circuit resistance low on squib Go To Pinpoint Test AI . B1915 3 10 Air bag driver circuit failure Go To Pinpoint Test F . B1916 3 8 Air bag driver circuit short to battery Go To Pinpoint Test D . B1920 3 13 Air bag passenger circuit failure Go To Pinpoint Test I . B1925 3 11 Air bag passenger circuit short to battery Go To Pinpoint Test G . B1932 1 9 Air bag driver circuit open Go To Pinpoint Test E . B1933 2 12 Air bag passenger circuit open Go To Pinpoint Test H . B1934 1 29 Air bag driver inflator circuit resistance low on squib Go To Pinpoint Test Y . B1935 2 31 Air bag passenger inflator circuit resistance low on squib Go To Pinpoint Test AA . B1936 3 28 Air bag driver circuit short to ground Go To Pinpoint Test X . B1938 3 30 Air bag passenger circuit short to ground Go To Pinpoint Test Z . B1992 5 14 Driver side, side mount air bag circuit short to VBATT Go To Pinpoint Test J . B1993 5 32 Driver side, side mount air bag circuit short to ground Go To Pinpoint Test AB . B1994 5 15 Driver side, side mount air bag circuit open Go To Pinpoint Test K . B1995 5 33 Driver side, side mount air bag low resistance on squib Go To Pinpoint Test AC . B1996 6 17 Passenger side, side mount air bag circuit short to VBATT Go To Pinpoint Test M . B1997 6 34 Passenger side, side mount air bag circuit short to ground Go To Pinpoint Test AD . B1998 6 18 Passenger side, side mount air bag circuit open Go To Pinpoint Test N . B1999 6 35 Passenger side, side mount air bag low resistance on squib Go To Pinpoint Test AE . B2117 5 16 Driver side, side mount air bag low capacitance on squib Go To Pinpoint Test L . B2118 6 19 Passenger side, side mount air bag low capacitance on squib Go To Pinpoint Test O . B2141 5Hz 6 NVM configuration failure RECONFIGURE the RCM. REFER to Section 418-01 . B2226/ B2227/ B2855/ B2856 N/A N/A Front crash sensor failure Go To Pinpoint Test AR . B2228/ B2230/ B2232/ B2234 N/A N/A Air bag driver, 2nd stage fault Go To Pinpoint Test AL . B2229/ B2231/ B2233/ B2235 N/A N/A Air bag passenger, 2nd stage fault Go To Pinpoint Test AM . B2433/ B2434/ B2435 N/A N/A Buckle switch, driver failure Go To Pinpoint Test AO . B2437/ B2438/ B2439 N/A N/A Buckle switch, passenger failure Go To Pinpoint Test AP . B2477 Continuous 7 Module configuration failure Check for correct RCM for this vehicle. RECONFIGURE the RCM. REFER to Section 418-01 . B2853/ B2854/ B2873/ B2873/ U2027 5 20 Left side crash sensor internal fault/short to ground/VBATT/ID fault Go To Pinpoint Test P . B2852/ B2874/ B2875/ U2028 6 21 Right side crash sensor internal fault/short to ground/VBATT/ID fault Go To Pinpoint Test Q . C1947/ C1948/ C1982 N/A N/A Seat track position sensor, driver failure Go To Pinpoint Test AQ .