Speed Sensor Diagnosis
- Turn ignition off. Using jumper wire, connect DLC1 connector terminals Ts and E1. See Fig 1. Start engine. ABS light should blink once every .13 second. If ABS light does not blink, check ABS light circuit. See ABS LIGHT CIRCUIT charts under DIAGNOSTIC CHARTS.
- Drive vehicle straight forward at 28 MPH for several seconds. Stop vehicle. Using another jumper wire, connect DLC1 connector terminals Tc and E1. There should now be 2 jumper wires. See Fig 1.
- Observe ABS light. If system is normal, ABS light will blink every .25 second. If system is malfunctioning, ABS light will flash codes. Turn ignition off. After performing check, remove jumper wires from DLC1 connector. Repair as necessary. See SPEED SENSOR DIAGNOSTIC CODES for code diagnosis, or see appropriate chart under DIAGNOSTIC CHARTS.