P21xx — Fuel and air metering

256 codes in this range. Generic powertrain codes — injector, sensor and emissions circuits.

• P2100Throttle Actuator Control Motor Circuit Open
• P2101Throttle Actuator Control Motor Circuit Range/Performance
• P2102Throttle Actuator Control Motor Circuit Low
• P2103Throttle Actuator Control Motor Circuit High
• P2104Throttle Actuator Control System — Forced Idle
• P2105Throttle Actuator Control System — Forced Engine Shutdown
• P2106Throttle Actuator Control System — Forced Limited Power
• P2107Throttle Actuator Control Module Internal Processor
• P2108Throttle Actuator Control Module Performance
• P2109Throttle/Pedal Position Sensor A Minimum Stop Performance
• P210AThrottle Actuator B Control Motor Circuit/Open
• P210BThrottle Actuator B Control Motor Circuit Range/Performance
• P210CThrottle Actuator B Control Motor Circuit Low
• P210DThrottle Actuator B Control Motor Circuit High
• P210EThrottle/Pedal Position Sensor/Switch C/F Voltage Correlation
• P210FThrottle Actuator B Control System - Forced Limited RPM
• P2110Throttle Actuator Control System — Forced Limited RPM
• P2111Throttle Actuator Control System — Stuck Open
• P2112Throttle Actuator Control System — Stuck Closed
• P2113Throttle Actuator Control System Forced Limited RPM
• P2114Throttle Actuator Control System Forced Below Limit RPM
• P2115Throttle/Pedal Position Sensor A Minimum Stop Performance
• P2116Throttle/Pedal Position Sensor B Minimum Stop Performance
• P2117Throttle/Pedal Position Sensor C Minimum Stop Performance
• P2118Throttle Actuator Control Motor Current Range/Performance
• P2119Throttle Closed Position Performance
• P211AThrottle Actuator B Control System - Stuck Open
• P211BThrottle Actuator B Control System - Stuck Closed
• P211CThrottle Actuator B Control Motor Current Range/Performance
• P211DThrottle Actuator B Control Throttle Body Range/Performance
• P211EThrottle Actuator B Control Module Processor
• P211FThrottle Actuator B Control Module Performance
• P2120Throttle/Pedal Position Sensor "C" Circuit
• P2121Throttle/Pedal Position Sensor "C" Range/Performance
• P2122Throttle/Pedal Position Sensor "D" Circuit Low
• P2123Throttle/Pedal Position Sensor "D" Circuit High
• P2124Throttle/Pedal Position Sensor "C" Circuit Low
• P2125Throttle/Pedal Position Sensor "C" Circuit High
• P2126Throttle/Pedal Position Sensor "C" Circuit Intermittent
• P2127Throttle/Pedal Position Sensor "E" Circuit Low
• P2128Throttle/Pedal Position Sensor "E" Circuit High
• P2129Throttle/Pedal Position Sensor "D" Circuit Intermittent
• P212AThrottle Position Sensor/Switch G Circuit
• P212BThrottle Position Sensor/Switch G Circuit Range/Performance
• P212CThrottle Position Sensor/Switch G Circuit Low
• P212DThrottle Position Sensor/Switch G Circuit High
• P212EThrottle Position Sensor/Switch G Circuit Intermittent
• P212FThrottle/Pedal Position Sensor/Switch F/G Voltage Correlation
• P2130Throttle/Pedal Position Sensor/Switch F Circuit
• P2131Throttle/Pedal Position Sensor "E" Range/Performance
• P2132Throttle/Pedal Position Sensor "E" Circuit Low
• P2133Throttle/Pedal Position Sensor "E" Circuit High
• P2134Throttle/Pedal Position Sensor/Switch F Circuit Intermittent
• P2135Throttle/Pedal Position Sensor "A"/"B" Voltage Correlation
• P2136Throttle/Pedal Position Sensor A/C Voltage Correlation
• P2137Throttle/Pedal Position Sensor B/C Voltage Correlation
• P2138Throttle/Pedal Position Sensor "D"/"E" Voltage Correlation
• P2139Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation
• P213AEGR Throttle Control Circuit B/Open
• P213BEGR Throttle Control Circuit B Range/Performance
• P213CEGR Throttle Control Circuit B Low
• P213DEGR Throttle Control Circuit B High
• P213EFuel Injection System Fault - Forced Engine Shutdown
• P213FFuel Pump System Fault - Forced Engine Shutdown
• P2140Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation
• P2141EGR Throttle Control Circuit A Low
• P2142EGR Throttle Control Circuit A High
• P2143EGR Vent Control Circuit/Open
• P2144EGR Vent Control Circuit Low
• P2145EGR Vent Control Circuit High
• P2146Fuel Injector Group A Supply Voltage Circuit/Open
• P2147Fuel Injector Group A Supply Voltage Circuit Low
• P2148Fuel Injector Group A Supply Voltage Circuit High
• P2149Fuel Injector Group B Supply Voltage Circuit/Open
• P214ASCR NOx Catalyst Inlet Temperature Too High
• P214BSCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration
• P214CSCR NOx Catalyst Outlet Temperature Too High
• P214DSCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration
• P214EReductant Pump A Current Too High
• P214FReductant Heater A Current Too High
• P2150Fuel Injector Group B Supply Voltage Circuit Low
• P2151Fuel Injector Group B Supply Voltage Circuit High
• P2152Fuel Injector Group C Supply Voltage Circuit/Open
• P2153Fuel Injector Group C Supply Voltage Circuit Low
• P2154Fuel Injector Group C Supply Voltage Circuit High
• P2155Fuel Injector Group D Supply Voltage Circuit/Open
• P2156Fuel Injector Group D Supply Voltage Circuit Low
• P2157Fuel Injector Group D Supply Voltage Circuit High
• P2158Vehicle Speed Sensor B Circuit
• P2159Vehicle Speed Sensor B Range/Performance
• P215AVehicle Speed - Wheel Speed Correlation
• P215BVehicle Speed - Output Shaft Speed Correlation
• P215COutput Shaft Speed - Wheel Speed Correlation
• P215DReductant Pump B Stuck On
• P215EReductant Heater D Current Too Low
• P215FReductant Heater D Current Too High
• P2160Vehicle Speed Sensor B Circuit Low
• P2161Vehicle Speed Sensor B Circuit Intermittent/Erratic/High
• P2162Vehicle Speed Sensor A/B Correlation
• P2163Throttle/Pedal Position Sensor A Maximum Stop Performance
• P2164Throttle/Pedal Position Sensor B Maximum Stop Performance
• P2165Throttle/Pedal Position Sensor C Maximum Stop Performance
• P2166Throttle/Pedal Position Sensor D Maximum Stop Performance
• P2167Throttle/Pedal Position Sensor E Maximum Stop Performance
• P2168Throttle/Pedal Position Sensor F Maximum Stop Performance
• P2169Exhaust Pressure Regulator Vent Solenoid Control Circuit/Open
• P216AFuel Injector Group E Supply Voltage Circuit/Open
• P216BFuel Injector Group E Supply Voltage Circuit Low
• P216CFuel Injector Group E Supply Voltage Circuit High
• P216DFuel Injector Group F Supply Voltage Circuit/Open
• P216EFuel Injector Group F Supply Voltage Circuit Low
• P216FFuel Injector Group F Supply Voltage Circuit High
• P2170Exhaust Pressure Regulator Vent Solenoid Control Circuit Low
• P2171Exhaust Pressure Regulator Vent Solenoid Control Circuit High
• P2172Throttle Actuator Control System - Sudden High Air Flow Detected
• P2173High Airflow/Vacuum Leak Detected (Slow Accumulation)
• P2174Throttle Actuator Control System - Sudden Low Air Flow Detected
• P2175Throttle Actuator Control System - Low Air Flow Detected
• P2176Throttle Actuator A Control System - Idle Position Not Learned
• P2177System Too Lean Off Idle Bank 1
• P2178System Too Rich Off Idle Bank 1
• P2179System Too Lean Off Idle Bank 2
• P217AFuel Injector Group G Supply Voltage Circuit/Open
• P217BFuel Injector Group G Supply Voltage Circuit Low
• P217CFuel Injector Group G Supply Voltage Circuit High
• P217DFuel Injector Group H Supply Voltage Circuit/Open
• P217EFuel Injector Group H Supply Voltage Circuit Low
• P217FFuel Injector Group H Supply Voltage Circuit High
• P2180System Too Rich Off Idle Bank 2
• P2181Cooling System Performance
• P2182Engine Coolant Temperature Sensor 2 Circuit
• P2183Engine Coolant Temperature Sensor 2 Circuit Range/Performance
• P2184Engine Coolant Temperature Sensor 2 Circuit Low
• P2185Engine Coolant Temperature Sensor 2 Circuit High
• P2186Engine Coolant Temperature Sensor 2 Circuit Low
• P2187System Too Lean at Idle (Bank 1)
• P2188System Too Rich at Idle (Bank 1)
• P2189System Too Lean at Idle (Bank 2)
• P218AThrottle Actuator B Control System - Idle Position Not Learned
• P218BThrottle/Fuel Inhibit B Circuit
• P218CThrottle/Fuel Inhibit B Circuit Range/Performance
• P218DThrottle/Fuel Inhibit B Circuit Low
• P218EThrottle/Fuel Inhibit B Circuit High
• P218FReductant No Flow Detected
• P2190System Too Rich at Idle (Bank 2)
• P2191System Too Lean at Higher Load (Bank 1)
• P2192System Too Rich at Higher Load (Bank 1)
• P2193System Too Lean at Higher Load (Bank 2)
• P2194System Too Rich at Higher Load (Bank 2)
• P2195O2 Sensor Signal Stuck Lean (Bank 1, Sensor 1)
• P2196O2 Sensor Signal Stuck Rich (Bank 1, Sensor 1)
• P2197O2 Sensor Signal Stuck Lean (Bank 2, Sensor 1)
• P2198O2 Sensor Signal Stuck Rich (Bank 2, Sensor 1)
• P2199Intake Air Temperature Sensor 1/2 Correlation
• P219ABank 1 Air-Fuel Ratio Imbalance
• P219BBank 2 Air-Fuel Ratio Imbalance
• P219CCylinder 1 Air-Fuel Ratio Imbalance
• P219DCylinder 2 Air-Fuel Ratio Imbalance
• P219ECylinder 3 Air-Fuel Ratio Imbalance
• P219FCylinder 4 Air-Fuel Ratio Imbalance
• P21A0Cylinder 5 Air-Fuel Ratio Imbalance
• P21A1Cylinder 6 Air-Fuel Ratio Imbalance
• P21A2Cylinder 7 Air-Fuel Ratio Imbalance
• P21A3Cylinder 8 Air-Fuel Ratio Imbalance
• P21A4Cylinder 9 Air-Fuel Ratio Imbalance
• P21A5Cylinder 10 Air-Fuel Ratio Imbalance
• P21A6Cylinder 11 Air-Fuel Ratio Imbalance
• P21A7Cylinder 12 Air-Fuel Ratio Imbalance
• P21A8Reductant Level Sensor B Circuit
• P21A9Reductant Level Sensor B Circuit Range/Performance
• P21AAReductant Level Sensor B Circuit Low
• P21ABReductant Level Sensor B Circuit High
• P21ACReductant Level Sensor B Circuit Intermittent/Erratic
• P21ADReductant Level Sensor C Circuit
• P21AEReductant Level Sensor C Circuit Range/Performance
• P21AFReductant Level Sensor C Circuit Low
• P21B0Reductant Level Sensor C Circuit High
• P21B1Reductant Level Sensor C Circuit Intermittent/Erratic
• P21B2Excessive Time To Enter Closed Loop NOx Adsorber Control
• P21B3Closed Loop NOx Adsorber Control At Limit - Too High
• P21B4NOx Adsorber Over Temperature (Bank 1)
• P21B5NOx Adsorber Over Temperature (Bank 2)
• P21B6Cold Start Cylinder 1 Injection Timing
• P21B7Cold Start Cylinder 2 Injection Timing
• P21B8Cold Start Cylinder 3 Injection Timing
• P21B9Cold Start Cylinder 4 Injection Timing
• P21BACold Start Cylinder 5 Injection Timing
• P21BBCold Start Cylinder 6 Injection Timing
• P21BCCold Start Cylinder 7 Injection Timing
• P21BDCold Start Cylinder 8 Injection Timing
• P21BECold Start Cylinder 9 Injection Timing
• P21BFCold Start Cylinder 10 Injection Timing
• P21C0Cold Start Cylinder 11 Injection Timing
• P21C1Cold Start Cylinder 12 Injection Timing
• P21C2Reductant Heater Relay Control Circuit/Open
• P21C3Reductant Heater Relay Control Circuit Low
• P21C4Reductant Heater Relay Control Circuit High
• P21C5Reductant Level Sensor A Stuck
• P21C6Reductant Level Sensor B Stuck
• P21C7Reductant Control Module Power Relay Control Circuit/Open
• P21C8Reductant Control Module Power Relay Control Circuit Low
• P21C9Reductant Control Module Power Relay Control Circuit High
• P21CAReductant Control Module Supply Voltage Circuit
• P21CBReductant Control Module Supply Voltage Low
• P21CCReductant Control Module Supply Voltage High
• P21CDReductant Quality Module Supply Voltage Low
• P21CEReductant Quality Module Performance
• P21CFCylinder 1 Injector B Circuit/Open
• P21D0Cylinder 2 Injector B Circuit/Open
• P21D1Cylinder 3 Injector B Circuit/Open
• P21D2Cylinder 4 Injector B Circuit/Open
• P21D3Cylinder 5 Injector B Circuit/Open
• P21D4Cylinder 6 Injector B Circuit/Open
• P21D5Cylinder 7 Injector B Circuit/Open
• P21D6Cylinder 8 Injector B Circuit/Open
• P21D7Cylinder 9 Injector B Circuit/Open
• P21D8Cylinder 10 Injector B Circuit/Open
• P21D9Cylinder 11 Injector B Circuit/Open
• P21DACylinder 12 Injector B Circuit/Open
• P21DBCylinder 1 Injector B Circuit Low
• P21DCCylinder 1 Injector B Circuit High
• P21DDReductant Heater A Current Too Low
• P21DECylinder 2 Injector B Circuit Low
• P21DFCylinder 2 Injector B Circuit High
• P21E0Cylinder 3 Injector B Circuit Low
• P21E1Cylinder 3 Injector B Circuit High
• P21E2Cylinder 4 Injector B Circuit Low
• P21E3Cylinder 4 Injector B Circuit High
• P21E4Cylinder 5 Injector B Circuit Low
• P21E5Cylinder 5 Injector B Circuit High
• P21E6Cylinder 6 Injector B Circuit Low
• P21E7Cylinder 6 Injector B Circuit High
• P21E8Cylinder 7 Injector B Circuit Low
• P21E9Cylinder 7 Injector B Circuit High
• P21EACylinder 8 Injector B Circuit Low
• P21EBCylinder 8 Injector B Circuit High
• P21ECCylinder 9 Injector B Circuit Low
• P21EDCylinder 9 Injector B Circuit High
• P21EECylinder 10 Injector B Circuit Low
• P21EFCylinder 10 Injector B Circuit High
• P21F0Cylinder 11 Injector B Circuit Low
• P21F1Cylinder 11 Injector B Circuit High
• P21F2Cylinder 12 Injector B Circuit Low
• P21F3Cylinder 12 Injector B Circuit High
• P21F4Fuel Control System B Too Lean Off Idle (Bank 1)
• P21F5Fuel Control System B Too Rich Off Idle (Bank 1)
• P21F6Fuel Control System B Too Lean Off Idle (Bank 2)
• P21F7Fuel Control System B Too Rich Off Idle (Bank 2)
• P21F8Fuel Control System B Too Lean at Idle (Bank 1)
• P21F9Fuel Control System B Too Rich at Idle (Bank 1)
• P21FAFuel Control System B Too Lean at Idle (Bank 2)
• P21FBFuel Control System B Too Rich at Idle (Bank 2)
• P21FCFuel Control System B Too Lean at Higher Load (Bank 1)
• P21FDFuel Control System B Too Rich at Higher Load (Bank 1)
• P21FEFuel Control System B Too Lean at Higher Load (Bank 2)
• P21FFFuel Control System B Too Rich at Higher Load (Bank 2)