P2203
NOx Sensor Circuit High Bank 1
2014-2014 Cadillac SRX 3.0L V6
Moderate SeverityPowertrainGeneric (SAE)
The 2014 Cadillac SRX is equipped with a 3.0L V6 engine. Below you'll find detailed p2203 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
NOx sensor bank 1 signal is above maximum expected voltage.
Symptoms
- Check engine light
- Over-dosing DEF
Common Causes
- Open circuit
- Short to voltage
- Failed sensor module
Diagnostic Steps
- Measure signal voltage
- Check for open circuits
Repair Notes
Repair wiring or replace NOx sensor.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P2203 on Other Vehicles
Common Questions
What does code P2203 mean on a 2014-2014 Cadillac SRX?
P2203 stands for "NOx Sensor Circuit High Bank 1". NOx sensor bank 1 signal is above maximum expected voltage.
What are the symptoms of P2203 on a Cadillac SRX?
Common symptoms of P2203 include: Check engine light, Over-dosing DEF.
What causes P2203 on a 2014-2014 Cadillac SRX?
Common causes of P2203 include: Open circuit, Short to voltage, Failed sensor module.
Last updated: March 2026