12-Volt Power Down

WARNING:

When performing any repairs that involve contact with high voltage components or systems, the technician performing repairs on the vehicle must verify that the system remains powered down during high voltage repairs.

This must be done by removing the service disconnect.
The high voltage check out procedure must also be performed to ensure that the vehicle is properly powered down.
The technician must know the whereabouts of the service disconnect throughout the repair.
The technician must ensure that no one reconnects the service disconnect while service is being performed.
The technician must recheck that the service disconnect has not been reinstalled in cases where the vehicle was unattended.

NOTE:

Because the high-voltage battery is used to charge the 12-volt battery via the power inverter module (PIM), disconnecting the 12-volt battery negative cable alone will not power down the 12-volt system. The following procedure must be carried out before any repairs, disassembly, or testing requiring 12-volt power down are carried out.

NOTE:

Even though the high-voltage battery manual service disconnect is removed during the 12-volt Power Down procedure, the 12-volt Power Down procedure will NOT safely and reliably power down the high-voltage system. If any high-voltage components are to be accessed, disconnected or tested, the High-Voltage Power Down procedure must first be carried out. Refer to HIGH-VOLTAGE POWER DOWN PROCEDURE .

Turn the ignition to the OFF position, and wait five minutes to allow the high-voltage system to shut down without setting a fault code.

Fig 1: Rear Seat Cushion & Release Strap
Courtesy of CHRYSLER GROUP, LLC
Pull the rear seat cushion release strap (1), and position the rear seat cushion (2) away from the high-voltage manual service disconnect cover.

Fig 2: High-Voltage Manual Service Disconnect Cover & Tab
Courtesy of CHRYSLER GROUP, LLC
Release the tab (1) and position the high-voltage manual service disconnect cover (2) aside.

Fig 3: High-Voltage Manual Service Disconnect Release Lever & Locking Tab
Courtesy of CHRYSLER GROUP, LLC
Release the locking tab and position the high-voltage manual service disconnect release lever (1) partially upward until it stops. Release the locking tab (2), and position the release lever (1) fully upward until the high-voltage manual service disconnect latch (3) is fully disengaged.

Fig 4: Removing High-Voltage Manual Service Disconnect
Courtesy of CHRYSLER GROUP, LLC
Lift out, and remove the high-voltage battery manual service disconnect.
Disconnect the negative 12-volt battery cable from the 12-volt battery.
The 12-volt electrical system is now powered down.