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1998 Ford Ranger SPLASH Reg Cab 112 WB

1998 Ford Ranger
Trim Info:
Rear Wheel Drive, Reg Cab 6'
22 mpg city / 27 mpg hwy
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April 9, 2013, 7:31 pm

Harry H

Question: Air Bag Code

When I start my 98 Ranger I get an error code of 25 for the air bag.If I use the key to turn off the passenger air bag I do not get the code. Any ideas?

April 21, 2013, 7:01 pm

Tyler O


If you get an airbag light flash code 25, it means "DTC B1871 - Pass Air Bag Deactivation (PAD) Switch Fault." For those who don't understand "PAD Switch" there is a small magnetic reed switch in the deactivation module.

Here is how the switch module works:
When the airbag activation key is in the "On" position, the switch will bring a small magnet away from the reed switch (which is soldered to the module circuit board). The reed switch is then in the "normally closed" (N.C.) position. In this position a 1.0k-ohm resistor is placed across two pins of the electrical connector of the module. When the activation key is in the "Off" position the switch will bring a magnet into proximity of the reed switch causing it to activate and switch to the "normally open" (N.O.) terminals. In this position a 470-ohm resistor is placed across the same two pins of the electrical connector of the module.

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April 22, 2013, 9:10 am

Harry H

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