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Test 12A, Left Front Wheel Speed Sensor Fault

NOTE: For connector terminal identification, refer to CONNECTOR IDENTIFICATION  . For wiring diagram, see WIRING DIAGRAM  .
  1. Using DRB-II, read fault messages. If DRB-II displays LF WSS CONTINUITY FAULT message, perform TEST 11A  . If DRB-II does not display LF WSS CONTINUITY FAULT message, go to next step.
  2. Remove and inspect left front Wheel Speed Sensor (WSS). Replace left front WSS if damaged. After repairs are complete, perform TEST VER-1A  . If left front WSS is okay, inspect left front tone wheel for damage (chipping, cracking or missing teeth). Replace tone wheel if damaged. After repairs are complete, perform TEST VER-1A  . If tone wheel is okay, go to next step.
  3. Disconnect left front WSS 2-pin connector located near fender panel, under brake master cylinder. Using DVOM ohmmeter scale, measure resistance across left front WSS connector terminals. See Figure . If resistance is 1000-4000 ohms, inspect and repair ABS wiring harness between CAB and WSS if necessary. If harness is okay, replace CAB. If resistance is not 1000-4000 ohms, replace left front WSS. After repairs are complete, perform TEST VER-1A  .
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