What Does P2213 Mean?
The NOx sensor on Bank 2 is reporting a general circuit malfunction. The ECM has detected an electrical fault in the NOx sensor signal circuit that doesn't fit specific high, low, or range criteria.
Common Causes
35%
Faulty NOx sensor with internal circuit failure
30%
Damaged or broken wiring in sensor circuit
20%
Corroded or damaged sensor connector
10%
Water or contaminant intrusion in sensor or connector
5%
ECM internal circuit failure
Diagnostic Steps
1
Step 1: Inspect NOx sensor and connector for physical damage, corrosion, or contamination
2
Step 2: Check sensor signal voltage and heater circuit operation using scan tool live data
3
Step 3: Test continuity of all NOx sensor circuit wires from sensor to ECM
4
Step 4: Check for proper sensor ground and power supply voltages
5
Step 5: Replace NOx sensor if all circuits test within specifications
Estimated Repair Cost
$300 - $1,300
Parts + labor, varies by vehicle and location
The NOx sensor on Bank 2 is reporting a general circuit malfunction. The ECM has detected an electrical fault in the NOx sensor signal circuit that doesn't fit specific high, low, or range criteria.
The most common cause of P2213 (NOx Sensor Circuit Bank 2) is: Faulty NOx sensor with internal circuit failure
Typical repair costs for P2213 range from $300 to $1,300, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to operate but may experience reduced power and poor fuel economy. Extended operation can damage emissions components.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2213 to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
