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.
Anti-Lock Brake System Module - Removal
2009 Jeep Wrangler 2WD V6-3.8LSECTION Anti-Lock Brake System Module - Removal
REMOVAL
1. Remove the master cylinder Brake Master Cylinder - Removal.
2. Install prop rod on the brake pedal to keep pressure on the brake system.
3. Remove negative battery cable from the battery.
4. Pull up on the ABM harness connector release (1) and remove connector (2).
5. Remove brake lines (2) from the HCU (4).
6. Remove HCU/ABM mounting nuts and bolt (4) and remove HCU (2) / ABM (3) as an assembly.
CAUTION: When removing ABM from HCU, be sure to completely separate the two components (approximately 38 mm (1.5 in.) before removing ABM. Otherwise, damage to the pressure sensor or Pump Motor connection may result requiring HCU replacement. Do not to touch the sensor terminals on the HCU side or the contact pads on the ABM side as this may result in contamination and issues in the future.
7. Remove the ABM from the HCU.
RENDER: 1.0x
NO RELATED
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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.