DTC 48 - Right Front Motor Free Spins: Notes

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

EBCM can detect a stripped nut or gear assembly during initialization. During the homing sequence, the piston should reach the top of the bore, resulting in a stalled motor. If this does not occur, the motor must be spinning with little or no resistance. This indicates a nut/screw or gear malfunction.

NOTE: Test numbers refer to test numbers on diagnostic chart.

Checks to see if the corresponding open motor DTC is also set.
Verifies motor was actually applied as commanded by observing feedback current.
Verifies motor can release.
Verifies motor can be applied by observing pedal movement.
Checks for a stripped gear on the motor pack.
Checks for stripped gear on the hydraulic modulator.
Checks for a malfunctioning EBCM.
Determines whether motor pack has an internal malfunctioning.
Checks for high resistance in motor high circuit.
Checks for high resistance in motor low circuit.
Determines whether fault is due to a faulty hydraulic modulator or a faulty motor pack.