Brakes - Brake Pedal Is Low And Feels Soft
07-045April 13, 2010
Applies To:
See VEHICLES AFFECTED
Brake Pedal Is Low and Feels Soft
(Supersedes 07-045, dated March 5, 2009, to revise the information marked by the asterisks)
REVISION SUMMARY
*Under VEHICLES AFFECTED and PARTS INFORMATION, the Element and Odyssey models were removed.
NOTE:
If you have this symptom on a 2007-08 Element or Odyssey, refer to Service Bulletin 10-017, Safety Recall: Air In Modulator-Control Unit Causes Low/So ft Brake Pedal.*
SYMPTOM
When you apply the brakes, the brake pedal travels lower and feels softer than normal.
PROBABLE CAUSE
The ABS/ICS or VSA modulator-control unit has leaked air into the brake system.
VEHICLES AFFECTED
CORRECTIVE ACTION
Replace the ABS/TCS or VSA modulator-control unit (modulator assembly).
PARTS INFORMATION
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Failed Part: P/N 57110-SDB-023
Defect Code: 03214
Symptom Code: 04907
Skill Level: Repair Technician
DIAGNOSIS
NOTE:
If the brake pedal travel is not lower than normal and the feel is not softer than normal, do not proceed with the diagnosis or the repair.
1. Inspect the brake system, and replace any leaking, worn, or damaged parts.
2. Manually bleed the brakes following the pattern shown on ISIS or in the service manual. Do not use a pressure or vacuum power bleeder:
^ Refer to the Brakes section of the appropriate service manual, or
^ Online, enter keyword BLEED, and select Brake System Bleeding from the list.
3. Apply the brakes to check the height and feel of the pedal:
^ If the brake pedal height and feel is now normal, go to REPAIR PROCEDURE.
^ If the brake pedal height and feel is still low and soft, continue with normal troubleshooting procedures.
REPAIR PROCEDURE
Replace the ABS/ICS or VSA modulator-control unit:
^ Refer to the Brakes section of the appropriate service manual, or
^ Online, enter keyword MODULATOR, and select the appropriate Modulator-Control Unit Removal and Installation from the list.