Courtesy Lamp: Service Precautions

CAUTION:
^ Before removing and installing the GEM/CTM or its connectors, disconnect the battery. Failure to follow this caution will result in the GEM/CTM storing many erroneous DTCs and may result in the GEM/CTM exhibiting erratic operation after installation.
^ Be careful when probing the fuse junction panel, battery junction box or any connectors. Damage will result to the connector receptacle if the probe or terminal being used is too large.
^ Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.