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Speed Sensor Signal Check

  1. Turn ignition off. Using jumper wire, connect DLC1 connector terminals Ts and E1. See Figure. Start engine. ABS light should blink once every .13 second. If ABS light does not blink, check ABS light circuit. See ABS WARNING LIGHT CIRCUIT  under CIRCUIT TESTS.
  2. Drive vehicle at 28 MPH or greater for several seconds. Stop vehicle. Using another jumper wire, connect DLC1 connector terminals Tc and E1. There should now be 2 jumper wires. See Figure.
  3. Observe ABS light. If system is normal, ABS light will blink every .25 second. If system is malfunctioning, ABS light will flash codes. See SPEED SENSOR DIAGNOSTIC CODE IDENTIFICATION . Repair as needed. Turn ignition off. Remove jumper wires from DLC1 connector.
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