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Seat Heater Cushion

  1. Disconnect the seatback heater from the seat cushion heater.
  2. Heat the thermostat with a light. See Fig 1.
  3. Inspect the seat cushion heater continuity between terminals. See INSPECTING SEAT HEATER CUSHION CONTINUITY  table.
INSPECTING SEAT HEATER CUSHION CONTINUITY

Tester Connection Condition Specified Condition
A1 - B3 Constant Continuity
A2 - B4, A3 - B2 Seat Heater Temp. Below 77-95°F (25-35°C) Continuity
A3 - B2 Seat Heater Temp. Below 115-129°F (46-54°C) Or More No Continuity
A2 - B1 Seat Heater Temp. Below 97-111°F (36-44°C) Or More No Continuity
Fig 1: Identifying Seat Heater Cushion Connector Terminals
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