All:
This issue has been danced around in several forums, but I have yet to see a comprehensive list of Ford SRS fault codes. I offer the following as a start. I know this list is incomplete, but hopefully other contributors can help me flesh it out to be more usefull to all who need help on this issue.
To the moderators; please feel free to move this post into a forum that you believe would be the most approprite for the topic.

Code Description
- No air bag indicator - inoperative lamp circuit or no ignition voltage to diagnostic monitor
- Continuous air bag indicator - diagnostic monitor disconnected or inoperative
12 Low battery voltage
13 Air bag circuit short to ground
14 Primary crash sensor circuit short to ground
21 Safing sensor not mounted to vehicle properly
22 Safing sensor output circuit shorted to battery voltage
23 Safing sensor circuit input batter feed/return circuit open
24 Safing sensor output feed/return circuit open
32 Driver side air bag high resistance or open in circuit
33 Passenger side air bag high resistance or open in circuit
34 Driver side low resistance or short in circuit
35 Passenger side air bag low resistance or short in circuit
41 RH radiator primary crash sensor feed/return circuit open
42 LH radiator primary crash sensor feed/return circuit open
44 RH radiator primary crash sensor not mounted to vehicle properly
45 LH radiator primary crash sensor not mounted to vehicle properly
51 Diagnostic monitor internal thermal fuse blown due to intermittent short to ground
52 Back-up power supply - voltage boost fault
53 Primary crash sensor circuit resistance to ground or internal diagnostic monitor failure
- Rapid continuous flashing (no diagnostic trouble code) all primary crash sensors disconnected


Thanks to all
Dialtone