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Home >> Suzuki >> 1997 >> Swift Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnostic Tests >> DTC 52: Left Front Channel In Release Too Long >> Description
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DTC 52: Left Front Channel In Release Too Long: Description

DTC 52 can be set on during an ABS stop. A malfunction exists if EBCM commands left front channel in release for 3 seconds.

NOTE: If any wheel speed DTCs or DTC 56 is also present, diagnose and repair those DTCs first before proceeding with DTC 52.
  1. Test drive vehicle. Using scan tool, select DATA LIST. While decelerating from 35 MPH to zero, monitor all wheel speeds. If any wheel speed is erratic or intermittent, go DTC 21-24 (as applicable). If wheel speeds appear acceptable, go to next step.
  2. Stop engine. Turn ignition on. Using scan tool, select ABS TESTS. Using manual control, select left front motor apply. Apply motor. Apply firm pressure on brake pedal. Select left front motor release function and release motor. If brake pedal falls, go to next step. If brake pedal does not fall, go to step 6).
  3. Release brake pedal. Select left front solenoid apply function. Energize solenoid. Apply firm pressure to brake pedal. If pedal falls, go to step 5). If pedal does not fall, go to next step.
  4. Maintain firm pressure on brake pedal. Using scan tool, command left front solenoid off. If pedal falls, go to next step. If pedal does not fall, system is currently functioning correctly. See DIAGNOSTIC AIDS .
  5. Switch left front solenoid with right front solenoid. Using scan tool, select ABS TESTS. Using manual control, select left front motor apply. Apply motor. Apply firm pressure on brake pedal. Select left front motor release function and release motor. If brake pedal falls, perform gear tension relief function using scan tool. Replace hydraulic modulator. See REMOVAL & INSTALLATION . If pedal falls, replace solenoid.
  6. Perform gear tension relief function. Separate motor pack from hydraulic modulator. See REMOVAL & INSTALLATION . Grasp left front gear on hydraulic modulator and attempt to move gear in either direction. If gear can be moved by hand, replace motor pack. If gear can not be moved by hand, replace hydraulic modulator.
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