My toyota camry 1996 problem

If it was not in a crash then something is wrong with the seat belts

Some of them are.please read this:

Recent 2017 Camry Recalls

• AIR BAGS:KNEE BOLSTERRecall for 2017 Toyota Camry
  • Recall AnnouncedDECEMBER 16 2016
  • NHTSA Reference#16V906000
  • Number Affected12
  Summary: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2016 Avalon, and 2017 Camry vehicles manufactured August 3, 2016, to September 12, 2016. The front passenger knee air bag module may have been attached to the lower instrument panel with incorrect fasteners.
  Consequence: If the air bag was installed with incorrect fasteners, the fasteners may become loose over time, affecting the air bag deployment and increasing the risk of injury.
  Fix: Toyota will notify owners, and dealers will inspect the fasteners, and if necessary, replace the instrument panel brace and body bracket and reattach the air bag assembly, free of charge. The recall is expected to begin in December 2016. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is G05.
  For detailed information & supporting documents, see the official NHTSA page concerning recall #16V906000 »
  

list of airbag flash codes.

12=Low Battery Voltage
13=Air Bag Circuit Shorted to Ground
14=Primary Crash Sensor Circuit Shorted to Ground
21=Safing Sensor Not Mounted to Vehicle Properly
22=Safing Sensor Output Shorted to Battery Voltage
23=Safing Sensor Circuit Input Feed/Return Circuit Open
24=Safing Sensor Output Feed/Return Circuit Open
32 Driver Side Air Bag Circuit High Resistance or Open
33 Passenger Side Air Bag Circuit High Resistance or Open
34=Driver Side Air Bag Circuit Low Resistance or Shorted
35=Passenger Side Air Bag Circuit Low Resistance or Shorted
41=RH Primary Crash Sensor Feed/Return Circuit Open
42=LH Primary Crash Sensor Feed/Return Circuit Open
44=RH Primary Crash Sensor Not Mounted to Vehicle Properly
45=LH Primary Crash Sensor Not Mounted to Vehicle Properly
51=Air Bag Diagnostic Monitor Internal Thermal FuseFuse Blown Due to Intermittent Short to Ground
52=Backup Power SupplyVoltage Boost Fault
53=Primary Crash Sensor Circuits Resistance to Ground or Air Bag Diagnostic Fault

see this and fix it.
AIR BAG SENSOR REPLACEMENT Several very important points must be kept in mind about replacing crash sensors. One is to make sure the replacement is the correct one for the application. Crash sensors are calibrated for specific vehicle applications, so compare OEM part numbers to make sure your parts supplier has given you the correct replacement crash sensor.
The mounting of the crash sensor is also critical. A replacement sensor must be installed in exactly the same location and the same position as the original. The sensor must also be firmly attached so it won't break loose in a future collision. Altering the mounting location or position of a sensor may cause it to trigger the air bag accidentally or not at all.

CRASH SENSOR CHECKS The air bag control module self-checks the crash sensors every time the engine is started, so unless the air bag warning light is on the sensors are assumed to be okay. If a fault is detected, the air bag warning light will come on and usually deactivate the air bag system. Using a scan tool, you can pull the trouble code from the system and refer to the appropriate diagnostic chart in a service manual to troubleshoot the problem. Air bag service information can also be found on the vehicle manufacturer's website (Click Here for a list of websites and access fees). Loss of circuit continuity anywhere in the air bag system, or loss of power to the air bag module are common causes of trouble codes.
Because crash sensors are sealed units, you cannot always determine their true condition by outward appearances. Any sensor that is obviously sustained physical damage as a result of a collision or other damage should be replaced. But what about ones that look okay? Most electromechanical crash sensors are designed to be electrically open in their rest condition. So one quick check you can perform is to check for continuity with an ohmmeter. If the sensor contacts are closed, it has not reset and should be replaced.

The air bag control module self-checks the crash sensors every time the engine is started, so unless the air bag warning light is on the sensors are assumed to be okay. If a fault is detected, the air bag warning light will come on and usually deactivate the air bag system. Using a scan tool, you can pull the trouble code from the system and refer to the appropriate diagnostic chart in a service manual to troubleshoot the problem. Air bag service information can also be found on the vehicle manufacturer's website. Loss of circuit continuity anywhere in the air bag system, or loss of power to the air bag module are common causes of trouble codes.

Because crash sensors are sealed units, you cannot always determine their true condition by outward appearances. Any sensor that is obviously sustained physical damage as a result of a collision or other damage should be replaced. But what about ones that look okay? Most electromechanical crash sensors are designed to be electrically open in their rest condition. So one quick check you can perform is to check for continuity with an ohmmeter. If the sensor contacts are closed, it has not reset and should be replaced.

CAUTION! Do not attempt to check or replace any crash sensor unless the air bag module has first been deactivated (or deployed as a result of an accident). This can be done by unplugging the air bag connector at the base of the steering column and waiting at least 10 minutes or longer depending on the application (always refer to a service manual for the proper deactivation and removal procedure).

The collector ring under the steering wheel is not making connection. Did you lose a brush when you put the steering wheel back on. Try cleaning the collector ring with steel wool.

Seems to be a very common problem with Ford. The wiring harness beneath the drivers seat contains the sensors for the airbag system. Go under the drivers seat and secure all the wires and clips. This makes most error lights for the airbags go away. Hope this helps and good luck!

Look for water entry into the front crash sensors behind the front bumper. They have bright yellow connectors.

Most likely the crash sensor (located somewhere in the front of the vehicle) has triggered. Some can be re-set, most have to be replaced, otherwise the vehicle will not start.

check all fuse, if all are normal it means you have to change air bag sensor
if you are facing any more electronic problems it means your engine computer is not working properly