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DTC 54 - Rear Channel In Release Too Long: Notes

NOTE: For circuit and connector terminal identification, see WIRING DIAGRAMS  .

EBCM can detect a motor that is energized longer than expected. This could occur if wheel speed sensor is malfunctioning, motor does not turn, the solenoid mechanically fails open or the motor wires are crossed.

NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. Identifies a problem in a wheel speed sensor that may cause the system to be in release too long.
  2. Checks for a wheel that may stick or bind because of a mechanical fault.
  3. Checks to see if the motor is capable of moving and applying the hydraulic piston for the rear wheels.
  4. Ensures that motor wiring is not crossed.
  5. Isolates the fault of a "no-apply" situation to either the motor pack or the hydraulic modulator.
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