There is a module that controls the air bags called the SDM Sensing and Diagnostic Module, but the air bags themselves are called modules. If they are referring to the SDM...
(1) Lower Console
(2) Inflatable Restraint Sensing and Diagnostic Module (SDM)
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What's this a picture of? This picture doesn't help me understand where.
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SOURCE: 2002 GMC Envoy Coil Packs / Coil Module Assembly's going bad
swap it with another and check the code again to ensure that it is coil pack 3. This car doesn't have adiquate sensors to diagnose this properly and may indicate the wrong coil. Yes this is comon, its happened to me and I have the same make and model.
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