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P0037 Diagnostic Trouble Code Discussion for July 2026

Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Control Circuit Low


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Trouble Ticket Help Requests for DTC P0037
Help Request Posted
2009 Toyota Camry XLE 2.4L MIL Lamp on VIN: 4T1BE46K09
P0037: O2 senser heater circuit low bk1s2. Car came in with code p0037 and mil on. Customer had installed aftermarket front a/f sensor and o2 sensor to fix problem , but no good. Started with oem o2 sensor (scantool read sensor at 21k ohms) old sensor read 16 ohms. Did not help found voltage good t...
July 08, 2026