TownAndCountry 2008

Bleeding the ABS System


Specific to:

Chrysler Town & Country 2008-2009

Dodge Grand Caravan 2008-2009

The base brake hydraulic system must be bled anytime air enters the hydraulic system; follow the conventional bleeding procedure. The ABS system should only need to be bled when the Hydraulic Control Unit (HCU) is replaced or removed from the vehicle. The ABS must always be bled anytime it is suspected that the HCU has ingested air. Under most circumstances that require the bleeding of the brake hydraulic system, only the base brake hydraulic system needs to be bled.

When bleeding the ABS system, the following bleeding sequence must be followed to insure complete and adequate bleeding:

Make sure all hydraulic fluid lines are installed and properly torqued
Connect the scan tool to the Data Link Connector (DLC). The connector is located under the lower steering column cover to the left of the steering column.
Using a scan tool, check to make sure the control unit does not have any fault codes stored. If it does, clear them using the scan tool.

When bleeding the brake system, wear safety glasses. A clear bleed tube must be attached to the bleeder screws and submerged in a clear container filled part way with clean brake fluid. Direct the flow of brake fluid away from yourself and the painted surfaces of the vehicle. Brake fluid at high pressure may come out of the bleeder screws when opened.

  1. Perform base brake bleeding procedure. Refer to Bleeding The Brake System.
  3. Using the scan tool, select ANTILOCK BRAKES, followed by MISCELLANEOUS, then BLEED BRAKES. Follow the instructions displayed.
  5. When the scan tool displays TEST COMPLETE, disconnect the scan tool and proceed.
  7. Perform a base brake bleeding a second time.
  9. Top off the master cylinder fluid level and verify proper brake operation before moving the vehicle.
    Check the brake fluid level in the reservoir periodically to prevent emptying, causing air to enter the hydraulic system.

  11. Test drive the vehicle to be sure the brakes are operating correctly and that the brake pedal does not feel spongy.