Bendix Commercial Vehicle Systems EC-30 ABS/ATC CONTROLLER 2/08 - Manual (Page 12)

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CHART 7 - EC-30 ™ CONTROLLER BLINK CODE DEFINITIONS (2 of 3)
Sensor output low or missing during vehicle operation above 10 mph. Verify
condition of tone ring mounting. Adjust speed sensor to contact tone ring.
Rotate wheel and verify: (a) for WS-20 speed sensor that output is minimally
0.8 VAC @ 1 RPS or (b) for WS-24 speed sensor that output is minimally
0.250 VAC @ 0.5 RPS. Verify condition and retention force of sensor clips.
Verify proper sensor lead routing and clamping.
Sensor output intermittent or excessive wobble in exciter ring. Verify condition
of tone ring mounting and teeth. Verify proper adjustment of wheel bearings.
Adjust speed sensor to contact tone ring. Rotate wheel and verify: (a) for
WS-20 speed sensor that output is minimally 0.8 VAC @ 1 RPS or (b) for
WS-24 speed sensor that output is minimally 0.250 VAC @ 0.5 RPS. Verify
condition and retention force of sensor clips. Verify proper sensor lead
routing and clamping.
Adjust speed sensor to contact tone ring. Verify proper number of tone ring
teeth per sensed wheel. Rotate wheel and verify: (a) for WS-20 speed sensor
that output is minimally 0.8 VAC @ 1 RPS or (b) for WS-24 speed sensor that
output is minimally 0.250 VAC @ 0.5 RPS. Verify condition and retention
force of sensor clips. Verify proper sensor lead routing and clamping. Verify
condition of tone ring mounting and teeth.