volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

Seat Heater|Service and Repair > < Diagram Information and Instructions|Page 7901
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Seat Heater: Testing and Inspection

For Thermostat testing, See: Seat Heater Thermostat/Testing and Inspection

Backrest Heater Element:

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Turn ignition off.

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Undo connector between seat cushion and backrest.

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Connect an ohmmeter across the terminal pins on the backrest connector.

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Ohmmeter should read approx. 1.5 Ohms.

If ohmmeter reading is 0 Ohms:
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Open-circuit in backrest heater element or connecting leads to heater element.

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First check connecting leads for open-circuit. See: Power and Ground Distribution/Service and Repair

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If fault still persists, remove cover as and replace heater element. 

Seat Heater|Service and Repair > < Diagram Information and Instructions|Page 7901