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This is for a 2008 Silverado 2500HD.

What might be the cause to trip all of these sensors at once?
Could it be an electrical issue? Been leaning toward ignition or relays from the ignition but thought I would try a second opinion online.

Vehicle: 2008, Chev, Silverado 2500HD, 6.0 gas

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P0036 H02S heater control circuit Bank 1 Sensor 2

P0054 H02S Heater reistance circuit Bank 1 Sensor  2

P0141 H02S Heater performance Bank 1 Sensor 2

P0056 H02S Heater control Bank 2 sensor 2

P0161 H02S Heater performance Bank 2 Sensor 2

These are all heat voltage supply for the 02 sensor , this is the exact DTC condition for a open heater fuse. The fuse is located in the engine fuse box listed as 02-A SNSR Fuse 18, and 02-B SNRS fuse 8 both of these are 10 amp fuse.

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