P21xx codes — Fuel & air metering and auxiliary emission controls
105 generic powertrain trouble codes from P2100 to P21C9. Each links to its page: what it means, how serious it is, and how to fix it.
- P2100Throttle Actuator A Control Motor Circuit/Open
- P2101Throttle Actuator A Control Motor Circuit Range/Performance
- P2102Throttle Actuator A Control Motor Circuit Low
- P2103Throttle Actuator A 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 A Control Module Processor
- P2108Throttle Actuator A Control Module Performance
- P2109Throttle/Pedal Position Sensor A Minimum Stop Performance
- P2110Throttle Actuator A Control System - Forced Limited RPM
- P2111Throttle Actuator A Control System - Stuck Open
- P2112Throttle Actuator A Control System - Stuck Closed
- P2113Throttle/Pedal Position Sensor B Minimum Stop Performance
- P2114Throttle/Pedal Position Sensor C Minimum Stop Performance
- P2115Throttle/Pedal Position Sensor D Minimum Stop Performance
- P2116Throttle/Pedal Position Sensor E Minimum Stop Performance
- P2117Throttle/Pedal Position Sensor F Minimum Stop Performance
- P2118Throttle Actuator A Control Motor Current Range/Performance
- P2119Throttle Actuator A Control Throttle Body Range/Performance
- P2120Throttle/Pedal Position Sensor/Switch D Circuit
- P2121Throttle/Pedal Position Sensor/Switch D Circuit Range/Performance
- P2122Throttle/Pedal Position Sensor/Switch D Circuit Low
- P2123Throttle/Pedal Position Sensor/Switch D Circuit High
- P2124Throttle/Pedal Position Sensor/Switch D Circuit Intermittent
- P2125Throttle/Pedal Position Sensor/Switch E Circuit
- P2126Throttle/Pedal Position Sensor/Switch E Circuit Range/Performance
- P2127Throttle/Pedal Position Sensor/Switch E Circuit Low
- P2128Throttle/Pedal Position Sensor/Switch E Circuit High
- P2129Throttle/Pedal Position Sensor/Switch E Circuit Intermittent
- P212CThrottle Position Sensor/Switch G Circuit Low
- P2130Throttle/Pedal Position Sensor/Switch F Circuit
- P2131Throttle/Pedal Position Sensor/Switch F Circuit Range/Performance
- P2132Throttle/Pedal Position Sensor/Switch F Circuit Low
- P2133Throttle/Pedal Position Sensor/Switch F Circuit High
- P2134Throttle/Pedal Position Sensor/Switch F Circuit Intermittent
- P2135Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation
- P2136Throttle/Pedal Position Sensor/Switch A/C Voltage Correlation
- P2137Throttle/Pedal Position Sensor/Switch B/C Voltage Correlation
- P2138Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
- P2139Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation
- 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
- P214ACatalyst Inlet Temperature Too High (NOx SCR)
- 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 Circuit Range/Performance
- 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
- 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
- P2173Throttle Actuator Control System - High Air Flow Detected
- 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
- 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 Intermittent/Erratic
- P2187System Too Lean at Idle Bank 1
- P2188System Too Rich at Idle Bank 1
- P2189System Too Lean at Idle Bank 2
- 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 Biased/Stuck Lean Bank 1 Sensor 1
- P2196O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1
- P2197O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1
- P2198O2 Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1
- P2199Intake Air Temperature Sensor 1/2 Correlation
- P21A1Imbalance in the Air-Fuel Ratio in Cylinder 6
- P21C8Reductant Control Module Power Relay/Relays Control Circuit Low
- P21C9Reductant control module power relay/relays control circuit high or Dnox-relay stuck opened