BENDIX M-21-M-22 ANTILOCK MOD ASSY Dokumentacja Pobierz pdf (Strona 37)

3 Diagnostics, Troubleshooting and Testing

Meritor WABCO Maintenance Manual MM-0112 (Revised 05-13)

Contact the Meritor WABCO OnTrac Customer Service Center at

866-OnTrac1 (668-7221) to ensure ESC module mounting is in

accordance with ECU parameters.

ESC Information Available in Meritor WABCO

TOOLBOX™ Software 11 or Higher

ESC Information can be accessed through Meritor WABCO

TOOLBOX™ Software 11 or higher under Components, ESC.

To access the ESC Information:

앫 If you are using TOOLBOX™ Software version 11 or higher, click

on the “Components” button. A drop-box will appear. Select

“ESC” then select “ESC Info”. Figure 3.36 and Figure 3.37.

Figure 3.36

Figure 3.37

Steering Angle Sensor (SAS) Testing

Electrical Checks

The following tests are for Meritor WABCO SAS Only.

앫 Disconnect SAS and check terminating resistance across Pin 1

and Pin 2 of the SAS. Figure 3.38 and Figure 3.39.

For the following checks, all the ECU connectors must be plugged in

as the ECU provides all voltage, ground and CAN communications.

Figure 3.41.

앫 Take measurements at the SAS harness connector side.

Figure 3.40.

앫 Check Key On CAN Low voltage on Pin 1.

앫 Check Key On CAN High voltage on Pin 4.

앫 Check Key On Voltage Supply on Pin 5.

앫 Check Key Off resistance across CAN low Pin 1 and CAN

High Pin 4.

Figure 3.36

4010629a

Figure 3.37

4010630a

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 97 98

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BENDIX M-21-M-22 ANTILOCK MOD ASSY Dokumentacja Strona 37