2013 impala with 15 unrelated error codes. Shop cleared them and said drive it at least 70 miles then bring it back because they can't believe all of them are valid. Can any one thing cause all these problems at once? The car recently had the starter replaced and state inspection completed but other than that no other issues. It starts and drives fine but A/C doesn't work.

P0037 Heater Control circuit low bank 1 sensor 2
P0037 Heater Control circuit low bank 2 sensors 2
P07E8 DTC definition not found please refer to vehicle service manual
P1847 Manufacture control P0B00 Auxilary Transmission Fluid Pump Motor Phase U current
P3700 DTC definition not found please refer to vehicle service manual
C1700 Manufacture control
B1701 Manufacture control
P0204 Injector Circuit / Open cylinder 4
P1204 Manufacture control
P1804 Manufacture control
P0037 HO2S Heater Control Circuit Low Bank 1 Sensor 2
P0057 HO2S Heater Control Circuit Low Bank 2 Sensor 2
P07E8 DTC Definitions not found Please refer to vehicle service manual
P0A4A Drive motor B position sensor circuit Overspeed

 

Might have a bad ECM.