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Air bag light blinks 42

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Old 05-30-2012, 01:49 PM
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Default Air bag light blinks 42

I have a 2004 F150 Lariat, the airbag light blinks 4 times then 2 times. does anyone have the code for this.
Old 05-30-2012, 03:07 PM
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There is a recall for the clock spring in the steering that deploys the air bag and I believe that a blinking abs light is a possible symptom that the harness is going bad. You may want to call the dealer ad have them check your vin to see if the recall has been performed on your truck.
Old 05-30-2012, 04:43 PM
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Unfortunately, the clock spring has nothing to do with your air bag code 42. I'd be checking under the truck on the left hand side for wiring damage...

Found this by typing in "air bag codes" in the Google search window:

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

Read more: http://wiki.answers.com/Q/Is_there_a...#ixzz1wO6Wm62V

Last edited by Mod (Ret.); 05-30-2012 at 04:45 PM.
Old 05-30-2012, 08:28 PM
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Unplug the sensor and plug it back in. The connectors are notorious for poor connections setting this code.
Old 07-10-2012, 04:41 PM
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where can this sensor be found to unplug/replug? i have the same code 4-2
Old 10-14-2012, 08:39 PM
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I to have this code. When its cold it doesn't come on. But once it warms up out side it will.
Old 10-15-2012, 08:22 AM
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I had this code and it was my front crash sensor. It is located on the middle radiator support. I needed to have mine replaced because the connections were so bad. Set me back just under $300.
Old 01-13-2013, 12:56 PM
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I started getting the 42 airbag code 2-3 days ago, I disconnected the front crash sensor and the connection looked fine, so I plugged it back in but I was still getting the code so I got online and found a replacement sensor for about $60. I decided before I ordered it to retake off my sensor and cut it open and see what the inside looked like. It was full of water not sure how it got in there, it's suposed to be sealed but I had just got a car wash and apparently water got in it. I took a hair dryer and heated it up to get all the moisture out plugged it in and now it works fine, but since I cut it open I'm going to have to replace it. Just thought I would share that since it looked fine at the connection but mine was actually internally bad, but at least I know what it is now instead of just replacing things that may or maynot be the problem.
Old 02-09-2013, 06:03 PM
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I just installed aux lighting on the front of my truck and now I get the steady airbag light. Could it have something to do with where I grounded the aux lights?
Old 02-09-2013, 06:39 PM
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Originally Posted by NE Ford
I just installed aux lighting on the front of my truck and now I get the steady airbag light. Could it have something to do with where I grounded the aux lights?
Forgot to plug in the passenger airbag sensor above the radio when I reinstalled the dash. Problem fixed.


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