Bendix Commercial Vehicle Systems EC-60 ESP CONTROLLERS ADV User Manual

Page 28

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28

Cab-mount ECU: Looking into

wire harness connector

X 4

Connector

Pin

Wheel Speed Sensor

Location

X1

18 Way

10

Right Drive Axle (+)

11

Right Drive Axle (-)

X2

18 Way

5

Left Steer Axle (+)

8

Left Steer Axle (-)

11

Right Steer Axle (+)

14

Right Steer Axle (-)

15

Left Drive Axle (+)

18

Left Drive Axle (-)

X3

15 Way

(if ECU is

configured for

6 sensors)

11

Left Additional Axle (+)

14

Left Additional Axle (-)

12

Right Additional Axle (+)

15

Right Additional Axle (-)

Speed Sensor Repair Tests:

1. Take all measurements at ECU harness connector

pins in order to check wire harness and sensor.

Probe the connector carefully so that the terminals

are not damaged.

2. Wheel speed sensor measurements should read:

Location

Measurement

Sensor

1500 - 2500 Ohms

Sensor to voltage or ground

Open Circuit (no continuity)

Sensor output voltage

>0.25 of VAC sensor output at ~ 0.5 revs/sec.

3. Clear DTC after issue is corrected. The sensor DTC

will remain until the power is cycled to the ABS ECU

and vehicle is driven above 15 MPH or DTC was

cleared using either the diagnostic blink code switch

or diagnostic tool.

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