Fault Code P2237
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2237
O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1
This code indicates an open circuit or fault in the positive current control circuit of the Oxygen (O2) sensor for bank 1, sensor 1. This affects the computer's ability to adjust the fuel/air ratio.
Part Details
Part Name
O2 Sensor Upstream Bank 1
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪400 - ₪1,200
Engine Location
Exhaust system, before catalytic converter
Symptoms
- Check Engine Light on
- Increased fuel consumption
- Abnormal exhaust smoke
- Poor engine performance
Possible Causes
- 1Damaged wiring (open circuit)
- 2Loose or corroded connector
- 3Faulty O2 sensor
- 4Defective Engine Control Module (ECM)
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