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Home >> Isuzu >> 1994 >> Trooper S, Standard >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Anti-Lock Brake System - 4-Wheel >> Self-Diagnostic Tests >> Test B-11, Speed Sensor Disconnected (DTC'S 51, 52, 53 & 54)

Test B-11, Speed Sensor Disconnected (DTC'S 51, 52, 53 & 54)

  1. Turn ignition switch to OFF position. Connect Pinout Box (J-35592). Using a DVOM, measure resistance between the following pinout box terminals. If DTC 51 is present, measure between terminals No. 4 and 22. If DTC 52 is present, measure between terminals No. 21 and 23. If DTC 53 is present, measure between terminals No. 8 and 9. If DTC 54 is present, measure between terminals No. 24 and 26.
  2. If resistance is 800-1300 ohms at all terminals, check for malfunction in wiring between speed sensor and EBCM. Repair as necessary and perform system self-check. If no faults are found, replace EBCM.
  3. If resistance is not 800-1300 ohms at all terminals, measure resistance at each speed sensor connector. If resistance is 800-1300 ohms, repair wiring or connection between appropriate speed sensor and EBCM. If resistance is not 800-1300 ohms, replace speed sensor.
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