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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1323 (Seat Heating System & Seat Cooling System) >> Diagnostic Information and Procedures >> DTC B2345 >> Circuit/System Testing >> B2345 13

B2345 13

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  1. Ignition OFF, disconnect the X2, X5 harness connectors at the MSM.
  2. Test for greater than 850 ohms between the signal circuit and the low reference circuits listed below:
    • Driver seat cushion terminal 1 X5 and terminal 3 X2
    • Passenger seat cushion terminal 2 X5 and terminal 6 X2
    • If less than the specified value, test for a short between the signal and low reference circuits. If the circuits test normal, replace the appropriate seat cushion heater element/temperature sensor.
  3. Test for greater than 850 ohms between the signal and the low reference circuits listed below:
    • Driver seat back terminal 4 X5 and terminal 2 X2
    • Passenger seat back terminal 3 X5 and terminal 5 X2
    • If less than the specified value, test for a short between the signal and low reference circuits. If the circuits test normal, replace the appropriate seat back heater element/temperature sensor.
  4. If all circuits test normal, replace the MSM.
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