P21xx OBD-II Trouble Codes
P21xx OBD-II Trouble Codes
This is a list of P21xx OBD-II Diagnostic Trouble Codes (DTCs). They all start with P21 (eg P2135, P2196, etc.). The first two P2 characters denote that they are generic transmission-related codes. The codes below are considered generic as they apply to all makes / models of OBD-II vehicles, although the specific diagnostic and repair steps may differ.
We have literally thousands of other codes listed on the site, use the links below to navigate to other code lists. If you can't find what you are looking for, use our search engine or ask a question on the forums.
Quick links to other trouble codes (starting with): P00xx: P01xx: P02xx: P03xx: P04xx: P05xx: P06xx: P07xx: P08xx: P09xx: P0Axx: P0Bxx: P0Cxx: P1 ***: P20xx: P21xx: P22xx: P23xx: P24xx: P25xx: P26xx: P27xx: P28 / P29 / P2A / P2B: P34xx
For all other codes not listed in the links above or below, see our list of major trouble codes.
P2100-P2199 Fault codes
- P2100 Throttle Actuator "A" Circuit Malfunction / Open
- P2101 Throttle Actuator "A" Motor Control Circuit Range / Performance
- P2102 Throttle Actuator "A" - Control Motor Circuit Low
- P2103 Throttle Actuator Control Motor "A" High
- P2104 Throttle actuator control system - forced idle
- P2105 Throttle actuator control system - forced engine shutdown
- P2106 Throttle actuator control system - forced limited power
- P2107 Throttle Actuator Control Module Processor
- P2108 Throttle Actuator Control Module Performance
- P2109 Throttle/Pedal Position Sensor "A" - Minimum Stop Value
- P210A Throttle Actuator "B" Motor Control Circuit / Open
- P210B Throttle Actuator "B" Motor Control Circuit Range / Performance
- P210C Throttle Actuator "B" - Control Motor Circuit Low
- P210D Throttle actuator "B" motor control circuit high
- P210E Throttle / Pedal Position Sensor / Switch "C" / "F" Voltage Correlation
- P210F ISO / SAE Reserved
- P2110 Throttle actuator control system - forced speed limit
- P2111 Throttle actuator control system - stuck open
- P2112 Throttle actuator control system - stuck closed
- P2113 Throttle / Pedal Position Sensor "B" at Minimum Stop
- P2114 Throttle / Pedal Position Sensor "C": Minimum Stopping Efficiency
- P2115 Throttle/Pedal Position Sensor "D" - Minimum Stopping Efficiency
- P2116 Throttle / Pedal Position Sensor "E" at Minimum Stop
- P2117 Throttle / Pedal Position Sensor "F": Minimum Stopping Efficiency
- P2118 Throttle Actuator Control Motor Range / Performance
- P2119 Throttle Actuator Control Throttle Body Range / Performance
- P211A, P211B, P211C, P211D, P211E, P211F ISO / SAE Reserved
- P2120 Throttle / Pedal / Switch Position Sensor "D" Circuit
- P2121 Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
- P2122 Throttle / Pedal Position Sensor / Switch "D" Low Signal
- P2123 Throttle/Pedal Position Sensor/Switch "D" - Circuit High
- P2124 Throttle / Pedal Position Sensor / Switch "D" Circuit Intermittent
- P2125 Throttle / Pedal / Switch Position Sensor "E"
- P2126 Throttle / Pedal Position Sensor / Switch "E" Circuit Range / Performance
- P2127 Throttle / Pedal Position Sensor / Switch "E" Circuit Low
- P2128 Throttle / Pedal Position Sensor / Switch "E" Signal High
- P2129 Throttle / Pedal Position Sensor / Switch "E" Circuit Intermittent
- P212A Throttle Position Sensor / Switch "G"
- P212B Throttle Position Sensor / Switch "G" Circuit Range / Performance
- P212C Throttle Position Sensor / Switch "G" Circuit Low
- P212D Throttle Position Sensor / Switch "G" Circuit High
- P212E Throttle Position Sensor / Switch "G" Circuit Intermittent
- P212F ISO / SAE Reserved
- P2130 Throttle / Pedal / Switch Position Sensor "F" Circuit
- P2131 Throttle / Pedal Position Sensor / Switch "F" Circuit Range / Performance
- P2132 Throttle / Pedal Position Sensor / Switch "F" Low Signal
- P2133 Throttle / Pedal Position Sensor / Switch "F" Signal High
- P2134 Throttle / Pedal Position Sensor / Switch "F" Circuit Intermittent
- P2135 Throttle / Pedal Position Sensor / A / B Switch Voltage Correlation
- P2136 Throttle / Pedal Position Sensor / A / C Switch Voltage Correlation
- P2137 Throttle / Pedal Position Sensor / B / C Switch Voltage Correlation
- P2138 Throttle / Pedal Position Sensor / Switch Voltage Correlation D / E
- P2139 Throttle / Pedal Position Sensor / D / F Switch Voltage Correlation
- P213A Exhaust Gas Recirculation Throttle Control Circuit "B" / Open
- P213B Exhaust Gas Recirculation Throttle Control Circuit "B" Range / Performance
- P213C A Low Exhaust Gas Recirculation Throttle Control Circuit "B"
- P213D Exhaust Gas Recirculation Throttle Control Circuit "B" High
- P213E Fuel Injection System Malfunction - Forced Engine Shutdown
- P213F Fuel Pump System Malfunction - Forced Engine Shutdown
- P2140 Throttle / Pedal Position Sensor / E / F Switch Voltage Correlation
- P2141 Low Exhaust Gas Recirculation Throttle Control Circuit "A"
- P2142 EGR Throttle Control Circuit "A" High
- P2143 Exhaust Gas Recirculation Vent Control Circuit / Open
- P2144 Low Exhaust Gas Recirculation Vent Control Circuit
- P2145 Exhaust Gas Recirculation Vent Control Circuit High
- P2146 Fuel Injector Group "A" Supply Voltage Circuit / Open
- P2147 Fuel Injector Group "A" Supply Circuit Low Voltage
- P2148 Fuel Injector Group "A" Supply Voltage Circuit High
- P2149 Fuel Injector Group "B" Supply Voltage Circuit / Open
- P214A, P214B, P214C, P214D, P214E, P214F ISO / SAE Reserved
- P2150 Fuel injector group "B" Low voltage supply circuit
- P2151 Fuel Injector Group "B" Supply Voltage Circuit High
- P2152 Fuel Injector Group "C" Supply Voltage Circuit / Open
- P2153 Fuel Injector Group "C" Power Circuit Low Voltage
- P2154 Fuel Injector Group "C" Supply Voltage Circuit High
- P2155 Fuel injector group "D" Supply voltage circuit / open
- P2156 Fuel Injector Group "D" Supply Circuit Low Voltage
- P2157 Fuel Injector Group "D" Supply Voltage Circuit High
- P2158 Vehicle speed sensor "B"
- P2159 Vehicle Speed Sensor "B" Range / Performance
- P215A Vehicle Speed - Wheel Speed Correlation
- P215B Vehicle speed - output shaft speed correlation
- P215C Output Shaft Speed - Wheel Speed Correlation
- P215D, P215E, P215F ISO / SAE Reserved
- P2160 Vehicle speed sensor "B" Circuit Low
- P2161 Vehicle Speed Sensor "B" Intermittent / Intermittent / High
- P2162 Vehicle Speed Sensor "A" / "B" Correlation
- P2163 Throttle / Pedal Position Sensor "A" Maximum Stop Performance
- P2164 Throttle / Pedal Position Sensor "B" Maximum Stop Performance
- P2165 Throttle / Pedal Position Sensor "C" Maximum Stop Performance
- P2166 Throttle / Pedal Position Sensor "D" Maximum Stop Performance
- P2167 Throttle / Pedal Position Sensor "E" Maximum Stop Performance
- P2168 Throttle / Pedal Position Sensor "F" Maximum Stop Performance
- P2169 Exhaust Gas Pressure Regulator Ventilation Solenoid Control Circuit / Open
- P216A Fuel injector group "E" Supply voltage circuit / open
- P216B Fuel injector group "E" Low voltage supply circuit
- P216C Fuel Injector Group "E" Supply Voltage Circuit High
- P216D Fuel injector group "F" Supply voltage circuit / open
- P216E Group "F" Fuel Injector Power Circuit Low Voltage
- P216F Fuel injector group "F" supply voltage circuit high
- P2170 A low rate of the exhaust gas pressure regulator ventilation solenoid control circuit
- P2171 High signal in the control circuit of the ventilation solenoid of the exhaust pressure regulator
- P2172 Throttle Actuator Control System - Sudden High Air Flow Detected
- P2173 Throttle Actuator Control System - High Air Flow Detected
- P2174 Throttle Actuator Control System - Sudden Low Air Flow Detected
- P2175 Throttle Actuator Control System - Low Air Flow Detected
- P2176 Throttle Actuator Control System - Idle Position Undetermined
- P2177 System Too Lean From Idle, Bank 1
- P2178 System Too Rich When Idle Bank 1
- P2179 System Too Lean From Idle, Bank 2
- P217A Fuel injector group "G" Supply voltage circuit / open
- P217B Fuel Injector Group "G" Supply Voltage Circuit Low
- P217C Fuel Injector Group "G" Supply Voltage Circuit High
- P217D Fuel injector group "H" Supply voltage circuit / open
- P217E Fuel Injector Group "H" Supply Voltage Circuit Low
- P217F Fuel Injector Group "H" Supply Voltage Circuit High
- P2180 System Too Rich When Idle Bank 2
- P2181 Cooling system characteristics
- P2182 Engine Coolant Temperature Sensor 2 Circuit
- P2183 Coolant Temperature Sensor 2 Circuit Range / Performance
- P2184 Low engine coolant temperature sensor 2
- P2185 High engine coolant temperature sensor 2
- P2186 Engine Coolant Temperature Sensor 2 Circuit Malfunction
- P2187 System Too Lean When Idle, Bank 1
- P2188 System Too Rich When Idle Bank 1
- P2189 System Too Lean When Idle, Bank 2
- P218A, P218B, P218C, P218D, P218E, P218F ISO / SAE Reserved
- P2190 System Too Rich When Idle Bank 2
- P2191 System Too Lean at Higher Load Bank 1
- P2192 System Too Rich At Higher Load, Bank 1
- P2193 System Too Lean at Higher Load Bank 2
- P2194 System Too Rich At Higher Load, Bank 2
- P2195 O2 Sensor Signal Stuck Bank 1 Sensor 1
- P2196 O2 Sensor Signal Stuck Bank 1 Sensor 1
- P2197 O2 Sensor Signal Stuck Bank 2 Sensor 1
- P2198 O2 Sensor Signal Stuck Bank 2 Sensor 1
- P2199 Intake Air Temperature Sensor 1/2 Correlation
- P219A bank 1 air / fuel ratio imbalance
- P219B Bank 2 Air / Fuel Ratio Imbalance
- P219C Cylinder No. 1 unbalance error
- P219D Cylinder 2 unbalance error
- P219E Cylinder 3 unbalance error
- P219F Cylinder 4 unbalance error
- P21AA – P21FF ISO / SAE Reserved
Next: Trouble Codes P2200-P2299
Quick links to other trouble codes (starting with): P00xx: P01xx: P02xx: P03xx: P04xx: P05xx: P06xx: P07xx: P08xx: P09xx: P0Axx: P0Bxx: P0Cxx: P1 ***: P20xx: P21xx: P22xx: P23xx: P24xx: P25xx: P26xx: P27xx: P28 / P29 / P2A / P2B: P34xx
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