BENDIX EC-60 ABS User Manual

27
Troubleshooting Diagnostic Trouble Codes:
Wheel Speed Sensors
2 Left Steer Axle Sensor
3 Right Steer Axle Sensor
4 Left Drive Axle Sensor
5 Right Drive Axle Sensor
14 Left Additional Axle Sensor
15 Right Additional Axle Sensor
1st. Blink
Code
Location
2nd.
Blink
Code
Diagnostic Trouble
Code Description
Repair Information
1 Excessive Air Gap
Adjust sensor to contact exciter ring. Rotate wheel and verify a minimum
of 0.25 VAC sensor output at ~ 0.5 RPS. Verify condition of sensor head.
Verify mounting of exciter ring and condition of teeth. Verify proper bearing
end-play. Verify condition and retention of clamping sleeve. Verify sensor
lead routing and clamping.
2 Output Low at
Drive-off
Adjust sensor to contact exciter ring. Rotate wheel and verify a minimum
of 0.25 VAC sensor output at ~ 0.5 RPS. Verify condition of sensor head.
Verify mounting of exciter ring and condition of teeth. Verify proper bearing
end-play. Verify condition and retention of clamping sleeve. Verify sensor
lead routing and clamping.
3 Open or Shorted
Verify 1500 – 2500 ohms across sensor leads. Verify no continuity between
sensor leads and ground or voltage. Verify no continuity between sensor
leads and other sensors. Check for corroded/damaged wiring or connectors
between the ECU and the wheel speed sensor.
4 Loss of Sensor
Signal
Adjust sensor to contact exciter ring. Rotate wheel and verify a minimum
of 0.25 VAC sensor output at ~ 0.5 RPS. Verify condition of sensor head.
Verify mounting of exciter ring and condition of teeth. Verify proper bearing
end-play. Verify condition and retention of clamping sleeve. Verify sensor
lead routing and clamping. Check for corroded/damaged wiring or connectors
between the ECU and the wheel speed sensor.
5 Wheel End
Verify mounting of exciter ring and condition of teeth. Verify proper bearing
end-play. Verify condition and retention of clamping sleeve. Verify sensor
lead routing and clamping. Check mechanical function of brake. Check for
kinked or restricted air lines.
6 Erratic Sensor
Signal
Adjust sensor to contact exciter ring. Rotate wheel and verify a minimum
of 0.25 VAC sensor output at ~ 0.5 RPS. Verify condition of sensor head.
Verify mounting of exciter ring and condition of teeth. Verify proper bearing
end-play. Verify condition and retention of clamping sleeve. Verify sensor
lead routing and clamping. Check for corroded/damaged wiring or connectors
between the ECU and the wheel speed sensor.
7 Tire Size
Calibration
Verify correct tire size as desired. Verify proper tire ination. Verify correct
number of exciter ring teeth.
10 Conguration
Error
ECU is congured for four sensors, but has detected the presence of
additional sensors. Verify sensor wiring and ECU conguration.

BENDIX EC-60 ABS Specifications

General

Type	ABS Controller
Function	Anti-lock Braking System control
Model	EC-60
Manufacturer	Bendix
Operating Temperature	-40°C to +85°C
Compatibility	Heavy-duty Vehicles