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Checking SWM control unit

Trouble-shooting information

Before continuing with trouble-shooting it is important to take note of the following:

-

All tests for the current system should have been done.

-

No faults should be found in the components, connectors or wires etc.

Have all the tests been done without finding any faults?

Yes - Replacing the component

No - No Fault Found

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Replacing the component

Test by replacing the control unit.

Caution! A new control unit is supplied without software. The new control unit must be programmed before it will work.

Additional information:

-

To replace and program the control unit, see Steering wheel module (SWM), replacing See: Steering Column Control Module/Service and Repair.

Is there a fault?

Yes - Fault Found

No - No Fault Found

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Trouble-Shooting Information

Relays and Modules > Relays and Modules - Steering and Suspension > Relays and Modules - Steering > Steering Mounted Controls Communication Module > Component Information > Testing and Inspection > Reading and Clearing Diagnostic Trouble Codes > Page 1034

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