I just replaced the clock spring on my 94' F150 and I am getting an airbag code 45 now. It fixed the code 32, the horn and the cruise but Now I have this stupid code.
Any Ideas?

Thanks

 

Found what it was.

<TABLE cellPadding=5 border=1><TBODY><TR><TD align=middle>45</TD><TD align=middle>Center Radiator Crash Sensor - Not Mounted to Vehicle Properly</TD></TR></TBODY></TABLE>

Now I just need to find it. What do these things look like?

 

Sorry but on a 1994 F150 a 45 is:
LH Front Air Bag Sensor and Bracket Not Mounted to Vehicle Properly

Sensors

WARNING:
VEHICLE SENSOR ORIENTATION IS CRITICAL FOR PROPER SYSTEM OPERATION. IF A VEHICLE EQUIPPED WITH A SUPPLEMENTAL AIR BAG RESTRAINT SYSTEM HAS BEEN INVOLVED IN A CRASH WHERE THE RADIATOR SUPPORT, FRAME RAILS OR COWLS HAVE BEEN DAMAGED, INSPECT THE SENSOR MOUNTING BRACKETS FOR DEFORMATION. IF DAMAGED, THE SENSOR SHOULD BE REPLACED WHETHER OR NOT THE AIR BAG IS DEPLOYED. IN ADDITION, MAKE SURE THE BODY STRUCTURE IN THE AREA OF THE SENSOR MOUNTING IS RESTORED TO ITS ORIGINAL CONDITION.

NOTE:
Undamaged sensors will reset automatically after an accident and can be reused.

The sensors are electrical switches which react to impacts according to direction and force. Sensors discriminate between impacts that require air bag inflation and impacts that do not require air bag inflation. When an impact occurs that requires air bag inflation, the sensor contacts close, completing the electrical circuit necessary for system operation.

 

Thank you very much! I will check it out. Were did you find this info? I have a Hanes manual and it sucks. Need something better with all this stuff in it.

 

the ford service manuals is what you need to get.

 

I'm assuming from the dealer?

 

no, try ebay.

 

Thanks..

I looked at the sensor. There is no visible damage and it is plugged in. Could it be a bad ground on that sensor? Maybe it was hit and the sensor needs to be replaced. I couldn't see any damage but it is a older truck.

Thanks for the help guys!!!

 

Excellent info Subford. I get the same 45 airbag code. Using your diagram I inspected my sensors. Both of them look to be as drawn in the setup you posted. The radiator has been replaced, however the frame and cowling have not been touched.

The vehicle has never been in a collision.

Any ideas on how to clear that code?

Thanks

Mike

 

Got rid of the code. I cleaned the rust off the bolts that hold the sensor on and used penetrating oil on the bolts. Seemed to work. Nice simple fix. Give that a try Mike.

Good luck

Thanks again for the great info.

 

I had a 45 on my 95 F150 when I first got it and it turned out to be an open wire in the wiring harness near the drivers fender, I spliced in a jumper wire around the harness from the dash plug to the plug going to the LH sensor. I have had no more problems.

PINPOINT TEST DTC 45: LH FRONT AIR BAG SENSOR AND BRACKET NOT MOUNTED TO VEHICLE PROPERLY

Normal Operation

The air bag diagnostic monitor measures the resistance between Pin 21 (Circuit 620, P/LB) and Pin 3 (diagnostic monitor reference ground). If the air bag diagnostic monitor measures a difference of more than 2.0 ohms between Pin 21 and Pin 3, it will flash out Code 45.

Note that Circuit 620 (P/LB) is attached to the side casing of the LH front air bag sensor and bracket. In addition, the case is grounded to the vehicle.


Possible Causes

High resistance on Pin 21 (Circuit 620, P/LB) to ground can be caused by:

1. A poor connection due to loose mounting, dirt, or corrosion at the mounting location of the LH front air bag sensor and bracket.

2. An open or damaged wire in Circuit 620 (P/LB) from Pin 21 of the diagnostic monitor harness connector to radiator support LH front air bag sensor and bracket. This includes splices and in-line connectors.

3. NOTE: Circuit 620 (P/LB) passes through an in-line connector between the main instrument panel harness and the engine compartment harness that connects to the LH front air bag sensor and bracket.

An open wire or loose (Circuit 620 P/LB) wire attachment inside radiator support LH front air bag sensor and bracket.

Check splice and in-line connectors for poor crimps, etc.

Link to Electrical Schematic
http://i54.photobucket.com/albums/g91/subford/Electrical/Air%20Bags/AirbagDiagram1995.gif

 

I was getting code 45 on my 94 f150. Cleaned the mounting bracket but no improvement. Read about the ground rivet on the case and gave it a few taps with a screwdriver and hammer through the grill opening. No more code 45.