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 Commander 4WD V8-5.7LSECTION Anti-Lock Brake System Module - Removal
REMOVAL
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.
1. Remove the negative battery cable from the battery.
2. Install a brake pedal prop rod.
3. Siphon the master cylinder.
4. Disconnect the HCU electrical connectors (5).
5. Remove the primary brake line at the master cylinder.
6. Remove the primary brake line from the HCU (4).
7. Remove the secondary brake line at the master cylinder.
8. Remove the secondary brake line at the HCU (4)
9. Remove the 4 chassis lines (3) at the HCU (4).
10. Remove the 1 mounting nut and 1 bolt holding the HCU bracket attachment to the vehicle.
11. Remove the HCU (3) with the bracket (5) from the vehicle.
12. Remove the 3 ABM bolts securing the ABM (1) to the HCU (2).
13. Separate the ABM (1) from the HCU (2).
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.