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XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)

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 940

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Trouble-shooting information

Condition

-

No SWM diagnostic trouble codes are displayed in the CEM

-

No diagnostic trouble codes are displayed in the PHM.

Possible source

-

Open circuit, short-circuit to earth or short-circuit to voltage supply on the wire

-

Defective RTI switch unit

-

Defective audio/telephone switch unit

-

Defective cruise-control switch unit.

Fault symptom[s]

-

Audio/telephone switch unit does not work.

Checking the Audio/Telephone Switch Unit

Checking the audio/telephone switch unit

Checking the components

-

Ignition on.

Activate buttons and read status on audio/telephone switch unit buttons.
If read-out gave a correct result the fault is not in the SWM unit.

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 940

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