DTC (Diagnostic Trouble Codes): Precautions

Make sure the battery is fully charged. If the battery is dead or low, electrical measurements values may not be correct.
Use only a digital multimeter to check the system. Make sure its output is 10 mA (0.01 A) or less when switched to the smallest value in the ohmmeter range. A tester with a higher output could damage the airbag circuit or cause accidental airbag deployment and possible injury.
Whenever the vehicle is in the ON mode, or for at least 3 minutes after the engine start/stop button is pressed to select the OFF mode, be careful not to bump the SRS unit; the airbags could accidentally deploy and cause damage or injuries.
Before removing the dashboard wire harness or floor wire harness, disconnect the driver's airbag inflator connector, the front passenger's airbag inflator connector, both side airbag inflator connectors, both side curtain airbag inflator connectors, both front seat belt tensioner connectors, selectable energy absorption device connector, and driver's seat belt outer lap tensioner connector.