Wheel Speed Sensor: Testing and Inspection

Fig. 192 Check Connector Pin Identification:

Fig. 190 Speed Sensor Diagnostic Troule Codes:

Fig. 191 Speed Sensor Diagnostic Trouble Code Chart:

1. Turn ignition switch to Off position, then connect diagnosis check wire tool No. 09483-18020, or equivalent, to terminals Ts and E1 of DLC1, Fig. 192.
2. Start engine and check if ABS warning light blinks. If ABS warning light does not blink, inspect ABS warning light circuit.
3. Drive vehicle faster than 28 mph for several seconds.
4. Stop vehicle, then connect terminals Tc and E1 of DLC1 with check wire.
5. Read number of blinks of ABS warning light, Fig. 190, and refer to diagnostic trouble code chart, Fig. 191.
6. If every sensor is normal, a normal diagnostic trouble code is output. If two or more malfunctions are indicated at the same time, lowest numbered diagnostic trouble code will be displayed first.