Removal Procedure
- Check the 12 volt battery voltage with a digital multimeter before disconnecting any battery cables leads. If the voltage is 13.5 volts or above, the Battery Maintenance Mode is active. The technician must wait for the T18 battery charger to deactivate before disconnecting the battery negative cable. Charging System Description and Operation
- Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
Turn the 3 front compartment sight shield retainers (1) a quarter turn counter clockwise to release.
Front Compartment Side Sight Shield (1) - Remove
- Thoroughly clean the brake master cylinder reservoir and the brake master cylinder body to remove any dirt and debris.
- Electrical Connector @ Brake Fluid Level Indicator Switch - Disconnect
- Place a drain pan under the vehicle.
Brake Master Cylinder Bolt (1) - Remove [2x]
Brake Master Cylinder Reservoir (1) - Remove
- Brake Master Cylinder Reservoir Seal (2) - Remove and DISCARD [3x]
- Clean any brake fluid from the underbody area and remove the drain pan from under the vehicle.
Always ensure the Battery Maintenance Mode is inactive before disconnecting the low voltage 12 volt battery (or batteries). This mode can be active with the ignition off, regardless of whether the vehicle charging cord is plugged in or not. When this mode is active, the on-board high voltage battery charger(s) will energize the 12 volt battery cables and charge the 12 volt battery (or batteries). Disconnecting any battery cables while this mode is active may result in an electrical shock or a burn from hot battery cable leads.