Abs Control Module -J104- And Abs Hydraulic Unit -N55-, Removing And Installing, Hybrid And Abs Mark 60 EC Abs/EDL/ASR/Esp: Removing

WARNING: This page is about a different car, the 2018 Volkswagen Jetta, 2017 Volkswagen Jetta, 2016 Volkswagen Jetta, and 2015 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Component Location:

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The ABS Control Module -J104- is attached to the ABS Hydraulic Unit -N55- and is located inside the engine compartment on the right side.

ABS Hydraulic Unit -N55- with ABS Control Module -J104-
Brake Booster with Tandem Brake Master Cylinder

WARNING:

Do not bend the brake lines near the ABS Hydraulic Unit -N55- !

Use the Vehicle Diagnostic Tester.

Chassis
Brake System
Anti-Lock Braking System ABS/EDL/ASR/ESP Mark 60 EC
Function
Check ABS Control Module J104 coding

NOTE:

The battery ground cable must be disconnected for the following procedure. Check if a coded radio is installed. If necessary, obtain anti-theft code beforehand.

-- Disconnect the battery. Refer to BATTERY .

CAUTION:

Danger of causing damage to electronic components when disconnecting the battery.

Follow the steps for disconnecting the battery.

-- Remove the noise insulation. Refer to NOISE INSULATION .

-- Remove the catalytic converter -1-. Refer to EMISSIONS CONTROL (CPLA, CPPA, CPKA, CPRA) , EMISSIONS CONTROL (CBPA, CKJA) , EMISSIONS CONTROL SYSTEM (CVCA, CUUA, CUUB, DELA, DEBA, DEJA, DGMA) and EMISSIONS CONTROL SYSTEM (CNLA, CRJA) .

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-- If equipped, remove the nut -1- and remove the heat shield -2-.

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-- Disconnect and remove the connector from the ABS Control Module -J104- in direction of -arrow-.

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-- Unclip the cover -2-.

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-- Unclip the brake lines -1- on the bracket -3-.

-- Insert the :VAG1869/2 .

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-- Push the brake pedal at least 60 mm using the :VAG1869/2 .

-- Remove front left caps -1-.

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-- Remove rear left caps -1-.

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Use a Suitable Bleeder Hose

It Must Fit Tightly on the Bleeder Valve So That No Air Can Get into the Brake System

-- Attach the bleeder bottle bleed hose -1- to the left front brake caliper breather valve.

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-- Open the breather valve.

-- Attach the bleeder bottle bleed hose -1- to the brake caliper breather valve/left rear brake cylinder.

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-- Open the breather valve.

-- Close the left front and left rear bleeder valves.

Do not remove the :VAG1869/2 .

-- Place enough lint-free cloths under the ABS Control Module -J104- and the ABS Hydraulic Unit -N55-.

Make Sure No Brake Fluid Gets on the Contacts

-- First label both brake lines from the brake master cylinder -A and B-.

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-- Remove the brake lines -A and B- from the ABS Hydraulic Unit -N55-.

-- Seal brake lines and threaded holes with Sealing Plugs.

-- Label brake lines -1 through 4- and then remove them.

-- Seal brake lines and threaded holes with Sealing Plugs.

-- Remove the hex fitting bolt from the bracket -arrow-.

-- Remove the ABS Hydraulic Unit -N55- with the ABS Control Module -J104- and the bracket sideways in direction of -arrow- from the rubber bushings on the bracket.

-- Turn the ABS Hydraulic Unit -N55- with the ABS Control Module -J104- upside down.

-- Remove the bracket in the vehicle from the hydraulic unit -arrows- (only on engines with too little clearance between the cross panel and engine).

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-- Remove the ABS Hydraulic Unit -N55- with the ABS Control Module -J104-.