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Left Rear Sensor Circuit Failure

  1. Using DRB-II, read and record all speed sensor fault messages. If DRB-II does not display LEFT REAR SENSOR CIRCUIT FAILURE, perform TEST 12A. If DRB-II displays LEFT REAR SENSOR CIRCUIT FAILURE, inspect left rear wheel speed sensor for damage. If sensor is damaged, repair or replace sensor as necessary. Perform VERIFICATION TEST VER-1A. If sensor is okay, turn ignition off.
  2. Disconnect and inspect CAB 55-pin connector. Repair connector as necessary. Turn ignition on. With DRB-II in voltmeter mode, probe terminal No. 46 (Light Green wire) of CAB connector. If voltage is present, perform TEST 11B.
  3. If voltage is not present, turn ignition off. With DRB-II in ohmmeter mode, probe terminal No. 46 (Light Green wire) of CAB connector. If resistance is less than 5 ohms, perform TEST 11C. If resistance is more than 5 ohms, using an external ohmmeter, check resistance between terminal No. 46 (Light Green wire) and No. 28 (Light Green/Dark Blue wire) of CAB connector.
  4. If resistance is 900-1300 ohms, replace CAB. Perform VERIFICATION TEST VER-1A. If resistance is not 900-1300 ohms, disconnect and inspect left rear wheel speed sensor connector. Using an external ohmmeter, check resistance between left rear wheel speed sensor connector terminals. If resistance is not 900-1300 ohms, replace wheel speed sensor. Perform VERIFICATION TEST VER-1A.
  5. If resistance is 900-1300 ohms, connect a jumper wire between terminal No. 46 (Light Green wire) of CAB connector and ground. With DRB-II in ohmmeter mode, probe Light Green wire of left rear wheel speed sensor connector. If resistance is more than 5 ohms, perform TEST 11D. If resistance is less than 5 ohms, perform TEST 11E.
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