Cause
Disconnected sensor connector
A connector left unlatched after other work, or vibrated apart. Worth suspecting most strongly straight after a repair — a code that appeared the same day something else was done to the car is usually related to it.
Typically an easy fix. Often worth checking before paying anyone to look.
Codes this can cause (64)
Codes where this is a likely explanation first, rather than merely a possible one.
- P2185 Engine Coolant Temperature Sensor 2 Circuit High Likely for this code Moderate
- P2203 NOx Sensor Circuit High Bank 1 Sensor 1 Likely for this code High
- P2211 NOx Sensor Heater Sense Circuit High Bank 1 Sensor 1 Likely for this code Moderate
- P2216 NOx Sensor Circuit High Input Bank 2 Likely for this code High
- P2224 NOx Sensor Heater Sense Circuit High Bank 2 Likely for this code Moderate
- P2229 Barometric Pressure Sensor A Circuit High Likely for this code Moderate
- P2286 Injector Control Pressure Sensor Circuit High Likely for this code High
- P2406 Evaporative Emission System Leak Detection Pump Sense Circuit High Likely for this code Moderate
- P2411 Fuel Cap Sensor Switch Circuit High Likely for this code Low
- P2433 Secondary Air Injection System Air Flow Pressure Sensor Circuit High Bank 1 Likely for this code Moderate
- P2438 Secondary Air Injection System Air Flow Pressure Sensor Circuit High Bank 2 Likely for this code Moderate
- P2542 Low Pressure Fuel System Sensor Circuit High Likely for this code High
- P2547 Torque Management Request Input Signal A Circuit High Likely for this code Moderate
- P2551 Torque Management Request Input Signal B Circuit High Likely for this code Moderate
- P2555 Throttle/Fuel Inhibit A Circuit High Likely for this code Moderate
- P2559 Engine Coolant Level Sensor/Switch Circuit High Likely for this code High
- P2565 Turbocharger Boost Control Position Sensor A Circuit High Likely for this code High
- P2570 Direct Ozone Reduction Catalyst Temperature Sensor Circuit High Likely for this code Low
- P2575 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit High Likely for this code Low
- P2581 Turbocharger/Supercharger Speed Sensor A Circuit High Likely for this code Moderate
- P2589 Turbocharger Boost Control Position Sensor B Circuit High Likely for this code High
- P2596 Turbocharger Speed Sensor B Circuit High Likely for this code Moderate
- P2603 Coolant Pump A Control Circuit High Likely for this code High
- P2613 Air Conditioning Refrigerant Distribution Valve A Control Circuit High Likely for this code Low
- P2619 Crankshaft Position Signal Output Circuit High Likely for this code Moderate
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
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