Test Notes

CAUTION:
^ Before removing and installing the [1][2][3][4]Generic Electronic Module (GEM) or its connectors, disconnect the battery. Failure to follow this caution will result in the GEM storing many erroneous Diagnostic Trouble Codes (DTCs) and it may exhibit erratic operation after installation
^ Be careful when probing the Central Junction Box, Battery Junction Box or any connectors. Damage will result to the connector receptacle if the probe being used is too large.
^ Electronic modules are sensitive to static electrical charges. If exposed to these charges damage may result

NOTE:
^ If continuous DTCs are recorded and the symptom is not present when carrying out the pinpoint tests, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.
^ Complete the entire pinpoint test related to the symptom before installing a new GEM.