P1137 CADILLAC HO2S Bank 1 Sensor 2 Lean Or Low Voltage

Possible causes
– Faulty HO2S Bank 1 Sensor 2
– HO2S Bank 1 Sensor 2 harness is open or shorted
– HO2S Bank 1 Sensor 2 circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
CADILLAC Related P1137 code
2004 CADILLAC XLR Electrical System