Current Leakage Detection - Ford Electric Ranger 1998 Student Manual

LESSON 1: VEHICLE OVERVIEW
1-46

CURRENT LEAKAGE DETECTION

Current Leakage Detection
•
The Electric Ranger uses a current leakage detection system to
monitor the integrity of the electrical system.
•
The BCM monitors the high voltage system for current leakage by
checking the DC circuitry for a low impedance path.
•
Current leakage detection is performed by relays, leakage current
shunts and current limiting resistors within the BCM.
•
This internal circuitry interfaces with either terminal of the traction
battery to measure impedance path between the terminal and the
vehicle chassis.
•
If the BCM detects severe leakage, the electric hazard warning
lamp in the instrument cluster will illuminate.
NOTE: If the electric hazard warning lamp remains illuminated after
lamp prove out, service the vehicle.
1998 Ranger EV New Model Training