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THE CODE DIRECTORY

Diagnostic code references — Page 73.

Browse canonical reference entries. Each definition keeps its own source and vehicle-applicability limits.

11,786 code references

Generic OBD-II
P2124

Throttle/Pedal Position Sensor/Switch D Circuit Intermittent

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Generic OBD-II
P2125

Throttle/Pedal Position Sensor/Switch E Circuit

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Generic OBD-II
P2126

Throttle/Pedal Position Sensor/Switch E Circuit Range/Performance

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Generic OBD-II
P2127

Throttle/Pedal Position Sensor/Switch E Circuit Low

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Generic OBD-II
P2128

Throttle/Pedal Position Sensor/Switch E Circuit High

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Generic OBD-II
P2129

Throttle/Pedal Position Sensor/Switch E Circuit Intermittent

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Generic OBD-II
P212A

Throttle Position Sensor/Switch G Circuit

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Generic OBD-II
P212B

Throttle Position Sensor/Switch G Circuit Range/Performance

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Generic OBD-II
P212C

Throttle Position Sensor/Switch G Circuit Low

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Generic OBD-II
P212D

Throttle Position Sensor/Switch G Circuit High

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Generic OBD-II
P212E

Throttle Position Sensor/Switch G Circuit Intermittent

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Generic OBD-II
P212F

Throttle/Pedal Position Sensor/Switch F/G Voltage Correlation

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Generic OBD-II
P2130

Throttle/Pedal Position Sensor/Switch F Circuit

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Generic OBD-II
P2131

Throttle/Pedal Position Sensor/Switch F Circuit Range/Performance

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Generic OBD-II
P2132

Throttle/Pedal Position Sensor/Switch F Circuit Low

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Generic OBD-II
P2133

Throttle/Pedal Position Sensor/Switch F Circuit High

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Generic OBD-II
P2134

Throttle/Pedal Position Sensor/Switch F Circuit Intermittent

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Generic OBD-II
P2135

Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation

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Generic OBD-II
P2136

Throttle/Pedal Position Sensor/Switch A/C Voltage Correlation

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Generic OBD-II
P2137

Throttle/Pedal Position Sensor/Switch B/C Voltage Correlation

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Generic OBD-II
P2138

Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

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Generic OBD-II
P2139

Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation

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Generic OBD-II
P213A

EGR Throttle Control Circuit B /Open

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Generic OBD-II
P213B

EGR Throttle Control Circuit B Range/Performance

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Generic OBD-II
P213C

EGR Throttle Control Circuit B Low

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Generic OBD-II
P213D

EGR Throttle Control Circuit B High

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Generic OBD-II
P213E

Fuel Injection System Fault - Forced Engine Shutdown

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Generic OBD-II
P213F

Fuel Pump System Fault - Forced Engine Shutdown

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Generic OBD-II
P2140

Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation

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Generic OBD-II
P2141

EGR Throttle Control Circuit A Low

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Generic OBD-II
P2142

EGR Throttle Control Circuit A High

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Generic OBD-II
P2143

EGR Vent Control Circuit/Open

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Generic OBD-II
P2144

EGR Vent Control Circuit Low

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Generic OBD-II
P2145

EGR Vent Control Circuit High

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Generic OBD-II
P2146

Fuel Injector Group A Supply Voltage Circuit/Open

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Generic OBD-II
P2147

Fuel Injector Group A Supply Voltage Circuit Low

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Generic OBD-II
P2148

Fuel Injector Group A Supply Voltage Circuit High

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Generic OBD-II
P2149

Fuel Injector Group B Supply Voltage Circuit/Open

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Generic OBD-II
P214A

SCR NOx Catalyst Inlet Temperature Too High

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Generic OBD-II
P214B

SCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration

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Generic OBD-II
P214C

SCR NOx Catalyst Outlet Temperature Too High

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Generic OBD-II
P214D

SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration

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Generic OBD-II
P214E

Reductant Pump A Current Too High

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Generic OBD-II
P214F

Reductant Heater A Current Too High

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Generic OBD-II
P2150

Fuel Injector Group B Supply Voltage Circuit Low

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Generic OBD-II
P2151

Fuel Injector Group B Supply Voltage Circuit High

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Generic OBD-II
P2152

Fuel Injector Group C Supply Voltage Circuit/Open

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Generic OBD-II
P2153

Fuel Injector Group C Supply Voltage Circuit Low

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Generic OBD-II
P2154

Fuel Injector Group C Supply Voltage Circuit High

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Generic OBD-II
P2155

Fuel Injector Group D Supply Voltage Circuit/Open

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Generic OBD-II
P2156

Fuel Injector Group D Supply Voltage Circuit Low

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Generic OBD-II
P2157

Fuel Injector Group D Supply Voltage Circuit High

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Generic OBD-II
P2158

Vehicle Speed Sensor B Circuit

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Generic OBD-II
P2159

Vehicle Speed Sensor B Circuit Range/Performance

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Generic OBD-II
P215A

Vehicle Speed - Wheel Speed Correlation

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Generic OBD-II
P215B

Vehicle Speed - Output Shaft Speed Correlation

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Generic OBD-II
P215C

Output Shaft Speed - Wheel Speed Correlation

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Generic OBD-II
P215D

Reductant Pump B Stuck On

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Generic OBD-II
P215E

Reductant Heater D Current Too Low

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Generic OBD-II
P215F

Reductant Heater D Current Too High

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Generic OBD-II
P2160

Vehicle Speed Sensor B Circuit Low

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Generic OBD-II
P2161

Vehicle Speed Sensor B Circuit Intermittent/Erratic/High

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Generic OBD-II
P2162

Vehicle Speed Sensor A/B Correlation

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Generic OBD-II
P2163

Throttle/Pedal Position Sensor A Maximum Stop Performance

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Generic OBD-II
P2164

Throttle/Pedal Position Sensor B Maximum Stop Performance

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Generic OBD-II
P2165

Throttle/Pedal Position Sensor C Maximum Stop Performance

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Generic OBD-II
P2166

Throttle/Pedal Position Sensor D Maximum Stop Performance

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Generic OBD-II
P2167

Throttle/Pedal Position Sensor E Maximum Stop Performance

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Generic OBD-II
P2168

Throttle/Pedal Position Sensor F Maximum Stop Performance

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Generic OBD-II
P2169

Exhaust Pressure Regulator Vent Solenoid Control Circuit/Open

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Generic OBD-II
P216A

Fuel Injector Group E Supply Voltage Circuit/Open

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Generic OBD-II
P216B

Fuel Injector Group E Supply Voltage Circuit Low

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Generic OBD-II
P216C

Fuel Injector Group E Supply Voltage Circuit High

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Generic OBD-II
P216D

Fuel Injector Group F Supply Voltage Circuit/Open

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Generic OBD-II
P216E

Fuel Injector Group F Supply Voltage Circuit Low

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Generic OBD-II
P216F

Fuel Injector Group F Supply Voltage Circuit High

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Generic OBD-II
P2170

Exhaust Pressure Regulator Vent Solenoid Control Circuit Low

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Generic OBD-II
P2171

Exhaust Pressure Regulator Vent Solenoid Control Circuit High

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Generic OBD-II
P2172

Throttle Actuator Control System - Sudden High Air Flow Detected

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Generic OBD-II
P2173

Throttle Actuator Control System - High Air Flow Detected

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Generic OBD-II
P2174

Throttle Actuator Control System - Sudden Low Air Flow Detected

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Generic OBD-II
P2175

Throttle Actuator Control System - Low Air Flow Detected

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Generic OBD-II
P2176

Throttle Actuator A Control System - Idle Position Not Learned

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Generic OBD-II
P2177

System Too Lean Off Idle Bank 1

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Generic OBD-II
P2178

System Too Rich Off Idle Bank 1

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Generic OBD-II
P2179

System Too Lean Off Idle Bank 2

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Generic OBD-II
P217A

Fuel Injector Group G Supply Voltage Circuit/Open

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Generic OBD-II
P217B

Fuel Injector Group G Supply Voltage Circuit Low

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Generic OBD-II
P217C

Fuel Injector Group G Supply Voltage Circuit High

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Generic OBD-II
P217D

Fuel Injector Group H Supply Voltage Circuit/Open

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Generic OBD-II
P217E

Fuel Injector Group H Supply Voltage Circuit Low

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Generic OBD-II
P217F

Fuel Injector Group H Supply Voltage Circuit High

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Generic OBD-II
P2180

System Too Rich Off Idle Bank 2

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Generic OBD-II
P2181

Cooling System Performance

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Generic OBD-II
P2182

Engine Coolant Temperature Sensor 2 Circuit

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Generic OBD-II
P2183

Engine Coolant Temperature Sensor 2 Circuit Range/Performance

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Generic OBD-II
P2184

Engine Coolant Temperature Sensor 2 Circuit Low

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Generic OBD-II
P2185

Engine Coolant Temperature Sensor 2 Circuit High

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Generic OBD-II
P2186

Engine Coolant Temperature Sensor 2 Circuit Intermittent/Erratic

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Generic OBD-II
P2187

System Too Lean at Idle Bank 1

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These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.