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Home >> Suzuki >> 1995 >> Samurai >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Power Seat System) >> Diagnostic Information and Procedures >> DTC B2425 or B2430 >> Circuit/System Testing >> B2425 Left Seat Heater Circuit
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B2425 Left Seat Heater Circuit

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the seat back heating element.
  2. Test for less than 5.0 ohms of resistance between the supply voltage circuit terminal A and the control circuit terminal B.
    • If greater than the specified range, replace the seat back heating element.
  3. Connect the harness connector at the seat back heating element.
  4. Disconnect the (C1) harness connector at the heated seat module.
  5. Test for less than 5.0 ohms of resistance between the supply voltage circuit terminal 3 and the control circuit terminal 5.
    • If greater than the specified range, test the supply voltage circuit and the control circuit for an open/high resistance. If the circuits test normal, replace the seat cushion heating element.
  6. Disconnect the (C2, C4) harness connectors at the heated seat module.
    NOTE: If the resistance is measured with the seat still warm, the resistance may vary within the specified range depending on the temperature of the seat.
  7. Test for 1.9K-300K ohms of resistance between the sensor signal circuit terminal 9 (C4) and the low reference circuit terminal 6 (C2).
    • If greater than the specified range, test the signal circuit and low reference circuit for a short to voltage or an open/high resistance. If the circuits test normal, replace the seat temperature sensor.
    • If less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat temperature sensor.
  8. Ignition OFF, connect the (C1, C2, C4) harness connectors at the heated seat module.
  9. Disconnect the harness connector at the seat cushion heating element/temperature sensor.
  10. Ignition ON, test for 4.8-5.2 volts between the temperature sensor signal circuit terminal C and ground.
    • If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the heated seat module.
    • If less than the specified range, test the signal circuit for a short to ground. If the circuit tests normal, replace the heated seat module.
  11. If all circuits test normal, replace the heated seat module.
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