Copyright by Goodheart-Willcox Co., Inc.
battery pack state of
hybrid ground fault
After studying this chapter, you will be able to:
Summarize the most common problems that occur in a hybrid drive system.
Use on-board diagnostics to fi nd the source of problems in a hybrid drive system.
Recall the safety measures that must be followed when working on high-voltage, high-current
hybrid drive systems.
Carry out basic tests to verify hybrid drive trouble codes.
Carry out proper procedures for safely removing and replacing an HV battery pack, a power control
module, electric drive cables, ECUs, and motor-generator assembly.