Mitsubishi i-MiEV Emergency Response Manual page 14

2) Wait at least 1 minute before proceeding to the next step. High voltage system shut down is
performed during this waiting time.
3) Disconnect the 12V battery negative terminal. This will disconnect the power supply to SRS
airbags system and the EV ECU. Disconnect the 12V battery negative terminal by using a 10mm
wrench as follows:
① Remove the cover of the 12V battery under the hood. Turn the plastic nut (A) counter
clockwise, and then remove the battery upper cover (B).
② Disconnect the negative terminal from the 12V battery.
③ If necessary, cut the negative 12V battery cable, then wrap electrical tape to insulate the
cable ends.
WARNING:

After disconnecting the 12V battery negative terminal, to avoid the risk of inadvertent air bag
deployment, wait at least 1 minute. The SRS air bag system is designed to retain enough
voltage to deploy the air bag for a short time even after the 12V battery has been
disconnected.

On vehicles with the MiEV Remote System, be sure to disconnect the negative terminal of
the 12V battery because the system (12V battery charging function, Remote Climate Control
function) may be activated unexpectedly and there is a risk of high voltage operation.

Open and close the door to ensure deactivation of the MiEV Remote System, because the
MiEV Remote System is in the activated state and the high voltage system is operating in
case that the negative terminal of the 12V battery is disconnected while the MiEV Remote
System is activated.
4) Wait at least 5 minutes before proceeding to the next step. Working with the high voltage circuit in
the Main drive lithium-ion battery can be performed about 5 minutes after disconnecting the 12V
battery negative terminal.
WARNING:
There are some high voltage components and wiring cables which retain high voltage for 5
minutes after disconnecting the 12V battery. Wait at least 5 minutes, then proceed with the
removal of the Service Plug.
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