Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
ABS Control Module -J104-, REPLACING: Assembling
Use new bolts.
-- Clean the sealing surface on the hydraulic unit -2- with a plastic scraper -1-.
Be careful not to damage or bend the valve body -3-.
The sealing surface on the hydraulic unit must have a clean, even surface.
Replace the hydraulic unit if the sealing surface or contact tags are damaged.
The seal on the control module cannot be replaced.
The seal on the control module must not be pulled out or raised up.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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