Audi a3 Snap on Fault diagnosed as drivers side crash sensor

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

Ford Airbag Fault Codes
Flash Code Component/Fault Description
- No Air Bag Indicator - Inoperative Indicator Circuit
- Continuous Air Bag Indicator - Diagnostic Trouble Code Timed Out, Diagnostic Monitor
Disconnected or Inoperative, or No Ignition Voltage to Diagnostic Monitor
12 Lost Battery Feed
13 Air Bag Circuit Shorted to Ground
14 Primary Crash Sensor Circuit Shorted to Ground
21 Diagnostic Monitor Not Mounted to Vehicle Properly
22 Safing Sensor Output Circuit Shorted to Battery Voltage
23 Memory Clear Circuit Improperly Grounded
24 System Disarm Failure or Internal Diagnostic Monitor Fault
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 Right Radiator Primary Crash Sensor Feed/Return Circuit Open
42 Left Radiator Primary Crash Sensor Feed/Return Circuit Open
44 Right Radiator Crash Sensor Not Mounted to Vehicle Properly
45 Left Radiator Crash Sensor Not Mounted to Vehicle Properly
51 Airbag diagnostic Monitor Internal thermal fuse Blown
52 Back-up Power supply Voltage Boost Fault
53 Front Crash Sensor High Resistance or Diagnostic Monitor Failure

Try it & see

This is a code 46 LH Crash Sensor - Not Mounted to Vehicle Properly. Often there is a poor contact on one of the wiring connectors. Some of the problems can happen from a poor connection where everything connects under the drivers side seat.
Here is a list of codes for the airbag light issues.

Air Bag Fault Code Table

AIR BAG DIAGNOSTIC MONITOR FAULT CODE PRIORITY TABLE

Priority Code Component/Fault Description

Highest -- No Air Bag Lamp - Inoperative Lamp Circuit or No Ignition Voltage to Diagnostic Monitor

' -- Continuous Air Bag Lamp - Diagnostic Monitor Disconnected or Inoperative

' 12 Low Battery Voltage

' 13 Air Bag Circuit or Crash Sensor Circuit - Shorted to Ground

' 21 Safing Sensor - Not Mounted on Vehicle Properly

' 22 Safing Sensor Output Circuit - Shorted to Battery Voltage

' 23 Safing Sensor Input Feed/Return Circuit Open

' 24 Open in Circuit 944B or Low Resistance in Crash Sensor(s)

' 32 Driver Side Air Bag/Safing Sensor Circuit - High Resistance or Open

' 33 Pin 7 Not Grounded at Diagnostic Monitor

' 34 Driver Side Air Bag/Safing Sensor Circuit - Low Resistance or Shorted

' 35 Low Resistance Across Pins 8 and 9 at Diagnostic Monitor

' 41 Crash Sensor Circuit - High Resistance or Open

' 44 RH Crash Sensor - Not Mounted to Vehicle Properly

' 45 Center Radiator Crash Sensor - Not Mounted to Vehicle Properly

' 46 LH Crash Sensor - Not Mounted to Vehicle Properly

' 51 Diagnostic Monitor Internal Thermal Fuse - Blown and Short to Ground No Longer Exists

' 52 Backup Power Supply - Voltage Boost Fault

' 53 Internal Diagnostic Monitor Fault

Lowest -- Rapid Continuous Flashing of Air Bag Lamp - All Crash Sensors Disconnected

Hope this helps...

It's an 02 sensor (oxygen sensor) fault. One if your 02 sensors is bad and/or catalytic converter is bad.

I would suggest that you scan the computer for fault codes. There are different sensors that control ignition and fuel and any one of these sensors can cause the car to stall and refuse to start. The crankshaft positioning sensor could be the cause if it has failed completely. The check engine light may be burned out , therefore no warning lights.

please explain what a Y reg is please ,anyway i think you will find the fault is connected with drivers side master switch if the contacts go in this switch you will loose all control of the window including the passenger side control as no feed is passed to the other side of the car .

check the plug in if it dont stop flashing its the senser

hallo
i belive it is oxygen sensor (O2S)
Marko

HI,ON THE COOLANT HOSE RUNNING ABOVE THE GEARBOX NEXT TO THE CYLINDER HEAD IS A COOLANT SENSOR THIS IS A 4 PIN SENSOR BLUE OR GREEN,REPLACE WITH THE LATEST TYPE,USE THE OLD ONE AS A SAMPLE IF YOU MUST AND IT SHOULD SOLVE YOUR PROBLEM,LET ME KNOW,ANDY