DTC P0137 — O2 Sensor Low Voltage (Bank 1, Sensor 2)
P0137 indicates: O2 Sensor Low Voltage (Bank 1, Sensor 2).
Diagnostic summary
P0137
What it means
O2 Sensor Low Voltage (Bank 1, Sensor 2)
Can you drive?
⚠️ Drive with caution
Urgency
Medium 5/10
Typical price
$80 – $300
Check first
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Updated May 4, 2026 Seen on Powertrain
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ℹ️ What does it mean?
O2 Sensor Low Voltage (Bank 1, Sensor 2)
🔍 Symptoms
- • Check Engine Light on
- • Reduced engine performance
- • Increased fuel consumption
- • Unusual engine behavior
⚠️ Possible Causes
- ⚠ Faulty downstream O2 sensor
- ⚠ Exhaust leak
- ⚠ Wiring issue
- ⚠ Lean condition
🚗 Can I drive with this code?
Drive with caution
Drive with caution. Schedule a repair soon.
🔧 How to Diagnose
- 1 Read DTCs with OBD-II scanner
- 2 Check freeze frame data
- 3 Inspect related components
- 4 Clear codes and test drive
🛠️ How to Fix
- 1 Replace O2 sensor
- 2 Fix exhaust leak
- 3 Repair wiring
💰 Estimated Repair Cost
Repair cost by car / region
Early rough estimate. Accuracy improves as more real repair stories are added.
DIY / parts$28 – $195
Mechanic / labor$36 – $225
Repair range$80 – $300
❓ FAQ
What does P0137 mean?
O2 Sensor Low Voltage (Bank 1, Sensor 2)
How serious is P0137?
Severity: medium. Drive with caution. Schedule a repair soon.
How much does it cost to fix P0137?
Estimated repair cost: $80–$300 depending on vehicle and region.
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