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How to find and replace front air bag sensor - 2005 GMC Envoy

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6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: find front airbag sensor 2003 Sierra

The front crash sensor is on or near the radiator support under the hood, it is a little square box, one question why do you think it has a problem? it is a mechanical device, a steel ball bearing sitting in an inverted cone, when you crash the ball bearing breaks free of the magnet, that breaks a connection and signals the airbag monitor to fire the airbags, it takes a 5+ MPH impact to set all this in motion, there are side impact sensors as well, the physics of these are a little different, they are measured in G force of the impact, hope all this doesn't bore, one note the fuel that fires the air bag is made by the same folks that make rocket fuel for the solid fuel boosters of the space shuttle.

Posted on Oct 15, 2008

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Where are the air bag sensors on a 2000 Lincoln towncar


Sensor - Front Crash Removal
WARNING: Vehicle sensor orientation is critical for proper operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. Replace and properly position the sensor or any other damaged supplemental restraint system (SRS) components whether or not the air bag is deployed.
WARNING: Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
WARNING: To reduce the risk of personal injury, do not use any memory saver devices.
NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and perform the diagnostic procedure again.
  1. Depower the system. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
  1. Remove the radiator upper sight shield (8C291).
  1. Remove the air bag sensor.
    1. Disconnect the air bag sensor electrical connector.
    1. Remove the three screws.
    1. Remove the air bag sensor.
    2. SECTION 501-20B: Supplemental Restraint System 2000 Town Car Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 06/10/2004 Sensor - Side Crash Removal
      WARNING: Vehicle sensor orientation is critical for proper system operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. Replace and properly position the sensor or any other damaged supplemental restraint system (SRS) components whether or not the air bag is deployed.
      WARNING: Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
      WARNING: To reduce the risk of personal injury, do not use any memory saver devices.
      NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
      NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
      NOTE: Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and perform the diagnostic procedure again.
      NOTE: Left side is shown, right side is similar.
      NOTE: The side crash sensors are located under the carpet beneath the front seats.
      1. Position the seat to gain access to all fasteners.
      1. Depower the system. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
      1. Remove the front seat. For additional information, refer to Section 501-10 .
      1. Remove the safety belt anchor bolt cover.
      1. Remove the bolt and the safety belt anchor.
      1. Remove the front and rear door scuff plates.
      1. Remove the lower B-pillar trim panel.
      1. Remove the carpet to access the side crash sensor.
      1. Remove the side crash sensor.
        1. Remove the retaining bolts and position the side crash sensor in order to disconnect the electrical connector.
        1. Disconnect the electrical connector.
        1. Remove the side crash sensor and bracket.

Dec 16, 2015 | 2000 Lincoln Town Car

1 Answer

After crash air bag liite is on 1995 chevy lumina need toplug in used air bags


Nothing will happen including air bag operation in the future. Air bag system is disabled by the computer any time the light is on. Probably have damaged sensor wires or sensor in the front due to previous front end damage. If a body shop repaired your car, take it back and demand they fix your car properly as this is part of the job.
NOTE: Before installing the air bags be sure to disconnect the battery "and" remove the air bag fuse and wait at least 3 minutes before working with the system. Safety first !!!12_24_2012_6_19_01_pm.png

Dec 24, 2012 | 1998 Chevrolet Monte Carlo

1 Answer

What is a guard rail sensor on a 1995 ford 5.8 van


one of the front impact sensors its located on the guard rail a front frame part. it sends a crash signal to control to set off air bag. but it wont set off air bag if not replaced.

Aug 03, 2012 | Ford Cars & Trucks

1 Answer

Air bag light blinks a code 13 continuously, It doesn't come on and stay on it blinks 1---1-1-1......1---1-1-1.....etc. I have change the two sensors in the front, checked fuses(no fuses with a direct link...


The Supplemental Air Bag Restraint System consists of two basic sub-systems:
  • Driver side air bag module (043B13) and passenger side air bag module (044A74).
  • Electrical system, including RH primary crash front air bag sensor and bracket (14B004) , LH primary crash front air bag sensor and bracket (14B005) , LH kick panel safing rear air bag sensor and bracket (14B007) and air bag diagnostic monitor (14B056) .
---------------------------------------------------------------------------------------
13 Air Bag or Primary Crash Sensor Circuit Shorted to Ground
  • Inspect air bag sliding contact wiring in steering wheel , driver side air bag module , and passenger side air bag module for damaged, chafed or pinched wires.
  • -------------------------------------------------------------------------------------

    Oct 28, 2010 | 1993 Mercury Grand Marquis

    1 Answer

    2001 Escort ZX2. Where are the impact sensors loctaed for the front air bags? Also, where is the control module located?


    AIR BAG (SUPPLEMENTAL RESTRAINT SYSTEM) General Information The Supplemental Restraint System (SRS) is designed to work in conjunction with the standard three-point safety belts to reduce injury in a head-on collision. WARNING
    The SRS can actually cause physical injury or death if the safety belts are not used, or if the manufacturer's warnings are not followed. The manufacturer's warnings can be found in your owner's manual, or, in some cases, on your sun visors. Depending on your vehicle, the SRS may be comprised of some or all of the following components:
    • Driver's side air bag module
    • Passenger's side air bag module
    • Air bag diagnostic monitor computer
    • Left and right-hand radiator primary crash air bag sensor and bracket
    • Center cowl safing rear air bag sensor and bracket
    • Left-hand kick panel safing rear air bag sensor and brackets
    • Air bag warning indicator
    • Tone generator (internal to the air bag diagnostic monitor)
    • Electrical wiring
    • Air bag Electronic Crash Sensor (ECS)
    The sensors in the car are designed to detect a severe frontal impact. When at least one of the primary crash sensors and the center cowl safing rear air bag sensor close at the same time, electric current flows to the inflator and ignites the chemicals. The chemicals burn rapidly in the metal container. This burning produces nitrogen gas and small amounts of dust, both the gas and dust are cooled and filtered during the air bag(s) inflation. The air bag(s) split the trim covers open while inflating. The air bag(s) then rapidly unfold and inflate in front of the driver or passenger. After the air bag(s) have inflated, the gas escapes through holes in the bag(s) and the they will deflate. prev.gif next.gif

    Jul 21, 2010 | 2001 Ford Escort ZX2

    1 Answer

    I've been in a wreck the damage is fixed. I have a new airbag control module. I've been told I need to replace the "crash sensors" before installing the new airbag control module. Where are the Crash...


    The crash sensors are located inside the computer the accelarometer would of been replaced if the computer was replaced. Or the air bag control modual. The clock spring would need to be replaced but the front magnetic sensors should be fine, they don't normally wear out. they can be damaged but the air bag warning light would flash if it was bad. And the air bag would still not go off unless the other condtions are met to make the bag deploy. The air control modual would have been replaced if it was done by a shop that is part of the service when the bags deploy. The crash sensors are a magnet with a steel ball and when the right speed is reached and the ball is let go from the metal o ring that it sits in it will deploy the first trigger the next trigger would be the acelorometer in the air control module and the impact would have to be strong enought to knock that ball loose as well to trigger the air bag.

    Mar 16, 2010 | 2006 Ford Fusion

    2 Answers

    Hit a deer and airbags deployed; some front end damage to vehicle; what do I need to do to replace airbags and get them functioning again? (especially with regards to airbag sensor)


    the air bags are very costlly, like around 2,000-4,000 eachwith out labor. the sensors are a few hundred also. when you replace the air bags you should replace all of the sensors. very expensive. for that kind of money you could almost get a new van. using junk yard air bags i don't suggest. to risky.

    Nov 10, 2009 | 1998 Ford Windstar

    2 Answers

    1997 Escort Sdn., airbag light flashes 4 times


    Pinpoint Test R: Diagnostic Trouble Code 44 — RH Radiator Primary Crash Front Air Bag Sensor Not Mounted to Vehicle Properly Normal Operation
    NOTE: Circuit 618 (BL/W) is grounded to the side of the RH radiator primary crash front air bag sensor case, and the case is grounded through the bracket to the vehicle at its mounting point.
    The air bag diagnostic monitor (14B056) measures the resistance between pin 20 (circuit 618 [BL/W]) and pin 3 (circuit 57M [BK]), the air bag diagnostic monitor reference ground. If the air bag diagnostic monitor measures a difference of more than 2.0 ohms between pin 20 and pin 3, it will flash diagnostic trouble code (DTC) 44.
    Possible Causes
    High resistance on pin 20 (circuit 618 [BL/W]) to ground can be caused by:
    • A poor connection due to loose mounting, dirt, or corrosion at the RH radiator primary crash front air bag sensor bracket mounting location.
    • An open or damaged wire in circuit 618 (BL/W) from pin 20 of the air bag diagnostic monitor connector to the RH radiator primary crash front air bag sensor connector.
    • An open circuit inside the RH radiator primary crash front air bag sensor.

    Oct 26, 2009 | 1997 Ford Escort

    1 Answer

    2001 corolla air bag replacement ,


    If you are replacing the air bags, you should replace the front left and right crash sensors, the spiral cable under the steering wheel, AND the center air bag sensor, which is in front of the console. If your car has seat-belt pretensioners and force limiters, you may have to replace them also. You will know this if the seat belts are "locked up". If you do not replace all of the parts, you may get a air-bag code, and the air bags may not deploy next time.

    Feb 09, 2009 | 2001 Toyota Corolla

    1 Answer

    Air bag replacement in 2003 grand am


    That is the only sensor to trigger the bags. The new module needs to be programmed to the car by the dealer or someone with a scan tool capable of that.

    Nov 12, 2008 | 2002 Chevrolet Cavalier Coupe

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