5. Emergency Procedure
Emergency Responder’s Guide
13
STEP 3: DISCONNECT HIGH VOLTAGE BATTERY
Read and follow all Danger and Warning messages covered in Section 3-
“Electric Vehicle Safety Rules” before disconnecting the high voltage
battery.
Failure to disable the high voltage electrical system before the Emergency
Response Procedures are performed will result in serious injury or death
from high voltage electrical shock.
NEVER APPROACH OR WORK ON HIGH VOLTAGE WITHOUT WEARING PPE.
Failure to do will result in serious injury or death from high voltage
electrical shock.
DO NOT touch with bare hands any high voltage harnesses colored in
ORANGE or high voltage components.
High voltage can be present in the system for up to 2 minutes after shut-off.
Wait at least 2 minutes after disconnecting high voltage before proceeding
with emergency procedures.
Do not attempt to reconnect any of the high voltage connection points if any
arcing were to occur while disconnecting these components.
After high voltage system shut down, there is a possibility that high voltage
remains in the air conditioning system. Be sure the air conditioning system
is turned off at the dash controls.
The high voltage battery for the CODA vehicle is designed to shutdown automatically under certain
events, such as airbag deployment, seat belt pretensioner deployment, and if the Battery
Management System or Driveline Control Module detects a malfunction that deems the need to
shut down the high voltage system. Even with these designs in place, the high voltage system
should be treated as not shutdown when first responding and assessing the vehicle.
High voltage shut down has to be performed before any first response operation. The high voltage
system shutdown takes up to 2 minutes. Wait at least 2 minutes for total system shut-down before
starting work on the vehicle.
ALWAYS use appropriate PPE (insulated gloves, insulated shoes, and face shield) and observe high
voltage safety rules before performing high voltage shutdown even if the READY and CHARGE
lights are off and there is no visual damage to the battery.
Table 5 summarizes several component used to shutdown the CODA’s high voltage system.
Locations of main components of the vehicle high voltage shutdown system are shown in Figure
13. The choice of the shutdown method depends on the incident circumstances, vehicle position
and shutdown device access.
