Test 7A - Left Front Sensor Continuity Check

NOTE: Perform TEST 1A before proceeding. For connector terminal and circuit identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAM . Perform TEST VER-1A after each repair.

Using scan tool, read DTCs. If LEFT FRONT SENSOR CIRCUIT FAILURE DTC is present, perform TEST 6A . If specified DTC is not present, go to next step.
Inspect Left Front (LF) Wheel Speed Sensor (WSS) for damage or loose mounting. Check tone wheel for damaged or missing teeth. Repair as necessary. If sensor and tone wheel are okay, go to next step.
Using a feeler gauge, measure sensor air gap in at least 4 places. If air gap is .016-.051" (.40-1.30 mm), go to next step. If air gap is not as specified, replace WSS.
Inspect wheel bearings for excessive runout or clearance. Repair as necessary. If wheel bearings are okay, go to next step.
Using scan tool, read DTCs. Turn ignition off, then on. Wiggle WSS wiring harness between WSS and Controller Anti-Lock Brake (CAB). If LEFT FRONT WHEEL SPEED SENSOR DTC sets, repair wiring harness as necessary where wiggling caused DTC to set. If DTC does not set, go to next step.
Turn ignition off. Disconnect CAB connectors. Inspect connectors for corroded, damaged or backed-out terminal pins. Repair as necessary. If connectors are okay, go to next step.
Using scan tool in ohmmeter mode, check resistance between CAB connector "B", terminals B13 and B14. If resistance is less than 2 ohms, go to next step. If resistance is 2 ohms or more, repair ground circuit as necessary.
Turn ignition on. Turn all accessories on. Using scan tool in voltmeter mode, check voltage between CAB connector "B", terminals B13 and B14. If voltage is more than one volt at either terminal, repair affected ground circuit as necessary. If reading is one volt or less at both terminals, replace LF WSS.