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Speed Sensor Signal Check

WARNING: This page is about a different car, the 1998 Lexus SC 400, 1998 Lexus SC 300, 1997 Lexus SC 400, and 1997 Lexus SC 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Information for clearing speed sensor diagnostic codes is not available from manufacturer. It may be possible to clear these codes by disconnecting battery cable or by using procedure for CLEARING DIAGNOSTIC TROUBLE CODES (DTC).
  1. Turn ignition off. Using fused jumper wire or Service Connector (SST 09843-18020), 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 .
  2. Drive vehicle at more than 28 MPH for several seconds. Stop vehicle. Using another fused jumper wire or Service Connector (SST 09843-18020), 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 fused jumper wires or Service Connector (SST 09843-18020), from DLC1 connector.
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