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DTC 53: Left Rear Wheel Speed Sensor Disconnection

  1. Turn ignition off. Disconnect EHCU harness connector. Using DVOM, measure resistance between EHCU harness connector terminals No. 22 (Orange/Blue wire) and No. 23 (White/Blue wire). If resistance is 1.3-1.9 k/ohms, check for faulty harness between wheel speed sensor and EHCU. Repair harness as necessary and perform system self-check. See ANTI-LOCK SYSTEM SELF-CHECK under DIAGNOSIS & TESTING. If no problem is found, replace EHCU. If resistance is not as specified, go to next step.
  2. Measure resistance of left rear wheel speed sensor. If resistance is 1.3-1.9 k/ohms, repair harness between wheel speed sensor and EHCU. If resistance is not as specified, replace wheel speed sensor.
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