1994 F150 Airbag Trouble Code 51 - 1994 Ford F150 Styleside Supercab

This is a code for Airbag system. Need to check wire, fuse. Remember if working on Airbag always disconnect the negative battery cable.

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

If your airbag code is blinking, and you get 51, it means that your internal thermal fuse in your airbag computer is blown which is caused by an intermittant short to ground on one of the wires in the circuit. When the short to the ground is removed, code 51 flashes with the use of the airbag warning lamp, 5 flashes, pause, 1 flash, longer pause. According to the Ford, this is a nonrepairable fix, you must buy a new air bag module which is a blue box located in the vicinity of the the steering column.

this means code 51- Denny

also you can take a look at http://www.vehix411.com thay have free video instructions and also free trouble code difinitions its a code 51

Hi there,

Yes, and No....

Although the Airbag diagnostics #51 & #52 are related to the basic fuse/power issue, if you simply replace the fuse, it will continue to blow the replacement fuse until you correctly erase all airbag codes from the computer.

There is a way to do this, without the need for a diagnostic scanner....

If you are technically inclined and can make up a 2 x jumper wires (each with tiny alligator clips on the ends), I can show you how to do this.

If yes, then you need to locate and confirm your data connector is the same as this one (found in the interior fuse box):


Let me know...

Cheers,

I was unable to locate code 31 in my book here is a copy of the codes. looks like you just need a fuse for #51. this may fix 31 as well.

Diagnostic Trouble Code Table 1994

AIR BAG DIAGNOSTIC MONITOR DIAGNOSTIC TROUBLE CODE PRIORITY TABLE
Priority Code Component/Fault Description
Highest - No Air Bag Indicator - Inoperative Lamp Circuit or No Ignition
Voltage to Air Bag Diagnostic Monitor

Continuous Air Bag Indicator - Air Bag Diagnostic Monitor
Disconnected or Inoperative
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 Module High Resistance or Open
33 Passenger Side Air Bag Module High Resistance or Open
34 Driver Side Air Bag Module Circuit Low Resistance or Shorted
35 Passenger Side Air Bag Module Low Resistance or Shorted
42 Center Radiator Primary Crash Sensor Feed/Return Open
44 Center Cowl Primary Crash Sensor Not Mounted to Vehicle Properly
45 Center Radiator Primary Crash Sensor Not Mounted to Vehicle Properly
51 Diagnostic Monitor Internal Thermal Fuse - Fuse Blown Due to
Intermittent Short to Ground
52 Backup Power Supply - Voltage Boost Fault
53 Primary Crash Sensor Circuits - Resistance to Ground or Air Bag
Diagnostic Monitor Failure

Lowest - Rapid Continuous Flashing of Air Bag Indicator (No DTC) All Primary

Common fault on FORD

Usually due to a poor connection in the YELLOW PLASTIC CONNECTOR underneath the passenger seat.

Just push it together properly and it should clear the AirBag fault

found it.

the beeps are an airbag trouble code, that code is for the following:
In most cases this problem is caused by the rotating ribbon circuit contact under the steering wheel having a broken filament, the part is known as a clock spring contact, u will need to properly disarm the airbag and remove the steering wheel to access the part. WARNING: Failure to follow factory Airbag disarming protocol can result in an unexpected Airbag deployment and possible serious personnel injury or death.