Pinpoint Tests: Notes
WARNING: This page is about a different car, the 2002 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Before removing and installing the Generic Electronic Module (GEM) or its connectors, disconnect the battery, refer to BATTERY, MOUNTING AND CABLES
. Failure to follow this caution will result in the GEM storing many erroneous DTCs, and it may exhibit erratic operation after installation.
CAUTION:
Be careful when probing the Central Junction Box (CJB), Battery Junction Box (BJB) or any connectors. Damage will result to the connector receptacle if the probe or terminal being used is too large.
CAUTION:
Electronic modules are sensitive to electrostatic discharges. 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.