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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1579 (Seat Heating System & Seat Cooling System) >> Diagnostic Information and Procedures >> DTC B2345 (Dealer Installed) >> Circuit/System Testing >> B2345 13

B2345 13

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
  2. Test for greater than 850 Ω between the signal and the low reference circuits listed below:
    • Driver seat cushion terminal 9 X4 and terminal 6 X2
    • Passenger seat cushion terminal 20 X4 and terminal 8 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 Ω between the signal and the low reference circuits listed below:
    • Driver seat back terminal 19 X4 and terminal 5 X2
    • Passenger seat back terminal 10 X4 and terminal 7 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 HSM.
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