Battery Regulation Control Module, Removing And Installing: Removing

WARNING: This page is about a different car, the 2016 Volkswagen Jetta and 2015 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

If the Battery Regulation Control Module -J840- is replaced, then it is always necessary to perform the work procedure for replacing the Battery Regulation Control Module -J840- before removing it. Refer to BATTERY REGULATION CONTROL MODULE, REPLACING .

-- De-energize the high-voltage system. Refer to High Voltage System, De-Energizing .

-- Push the connector -2- of the pilot line all the way in the direction of the -arrow A-.

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-- Remove the bolts -B arrows-.

-- Remove the cover for the high-voltage connection -1-.

-- Remove caps -1- from the high-voltage contacts in direction of -arrow-.

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-- Remove the bolts -2- and -arrows- and carefully pull out the High-Voltage Wiring Harness for High-Voltage Battery -PX1- -1-.

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NOTE:

Be careful not to damage the seals on the high-voltage cables.

-- Reinstall the protective caps -1- on the HV contacts opposite the direction of the -arrow-.

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-- Remove the bolts -2- for the cover -1-.

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-- Remove the bolts and nuts -3 and 4- from the cover -1- and then remove the cover -1- from the Hybrid Battery Unit -AX1- -2-.

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-- Draw sketches or take pictures of the wires for the correct reinstallation.

-- Unclip the wiring harness -1- from the bracket -2-.

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-- Release the connector -3- on the Battery Regulation Control Module -J840- and disconnect.

-- Release the catches -arrows- on the contact protection -1-.

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-- Remove the contact protection -1- from the bracket -2-.

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WARNING:

Check the potential equalization between the high-voltage cable -1- and the battery module housing.

There must be potential equalization between the high-voltage cable -1- and the battery module housing.

-- Remove the three bolts -2- for the measuring cables -3- in the bracket -4-.

-- Free up the wiring harness -3- to the side.

-- Install the contact protection -1- back on the bracket -2-.

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-- Remove the bolts -A arrows-.

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-- Remove the High-Voltage System Maintenance Connector -TW- -1- mount slightly and at the same time release and disconnect the connector -arrow B-.

-- Remove the bolts -A arrows-.

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-- Unclip the retainer -1- on the Battery Regulation Control Module -J840- -B arrows-.

-- Pivot the retainer -1- together with the mount High-Voltage System Maintenance Connector -TW- to the side.

-- Remove the bolts -arrows- on the high-voltage battery switch box -1-.

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-- Carefully lift the Battery Regulation Control Module -J840- -1- together with the high-voltage battery switch box.

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-- At the same time release the connectors -2- through -8- on the Battery Regulation Control Module -J840- -1- one after the other from above downward and disconnect.

-- Remove the Battery Regulation Control Module -J840- -1-.