P0171
System too Lean (Bank 1)
Miscellaneous powertrain OBD-II codes not classified into specific subsystems.
Codes in this bucket span various powertrain subsystems that don't fall into the more specific categories. Each one warrants individual diagnosis.
System too Lean (Bank 1)
System too Rich (Bank 1)
System too Lean (Bank 2)
System too Rich (Bank 2)
Engine Shutoff Solenoid Malfunction
Engine Overtemp Condition
Engine Overspeed Condition
Vehicle Overspeed Condition
Rough Road Hardware Not Present
Reserved
Secondary Air Injection System Malfunction
Secondary Air Injection System Incorrect Flow Detected
Evaporative Emission Control System Malfunction
Evaporative Emission Control System Incorrect Purge Flow
Evaporative Emission Control System Leak Detected (small leak)
Evaporative Emission Control System Leak Detected (gross leak)
Evaporative Emissions System Small Leak Detected
Evaporative Emission Control System Leak Detected
Exhaust Pressure Control Valve Malfunction
Exhaust Pressure Control Valve Low
Exhaust Pressure Control Valve High
Exhaust Pressure Control Valve Intermittent
Cooling Fan Rationality Check Malfunction
Secondary Air Injection System Insufficient Flow Bank 1
Secondary Air Injection System Insufficient Flow Bank 2
Fan Overspeed
Fan Speed Low
Fan Speed High
EVAP Flow During A Non-Purge Condition
Evaporative Emission System Low Purge Flow
Brake Switch "A"/"B" Correlation
Idle Control System Malfunction
Idle Control System RPM Lower Than Expected
Idle Control System RPM Higher Than Expected
Incorrect Immobilizer Key
Engine Oil Pressure Too Low
Air Conditioner Refrigerant Charge Loss
Cruise Control System - Vehicle Speed Too High
Cruise Control Multi-Function Input "A"/"B" Correlation
VIN Not Programmed or Incompatible - ECM/PCM
Odometer Not Programmed - ECM/PCM
Immobilizer Key Not Programmed - ECM/PCM
Pressure Control Solenoid Malfunction
Pressure Control Solenoid Stuck On
Pressure Control Solenoid Electrical
Pressure Control Solenoid Intermittent
Shift Solenoid A Malfunction
Shift Solenoid A Stuck On
Shift Solenoid A Electrical
Shift Solenoid A Intermittent
Shift Solenoid B Malfunction
Shift Solenoid B Stuck On
Shift Solenoid B Electrical
Shift Solenoid B Intermittent
Shift Solenoid C Malfunction
Shift Solenoid C Stuck On
Shift Solenoid C Electrical
Shift Solenoid C Intermittent
Shift Solenoid D Malfunction
Shift Solenoid D Stuck On
Shift Solenoid D Electrical
Shift Solenoid D Intermittent
Shift Solenoid E Malfunction
Shift Solenoid E Stuck On
Shift Solenoid E Electrical
Shift Solenoid E Intermittent
Pressure Control Solenoid "B"
Pressure Control Solenoid "B" Stuck On
Pressure Control Solenoid "B" Electrical
Pressure Control Solenoid "B" Intermittent
Shift Malfunction
1-2 Shift Malfunction
2-3 Shift Malfunction
3-4 Shift Malfunction
4-5 Shift Malfunction
Pressure Control Solenoid "C"
Pressure Control Solenoid "C" Stuck On
Pressure Control Solenoid "C" Electrical
Pressure Control Solenoid "C" Intermittent
Transfer Case Control System (MIL Request)
Clutch Position Control Error
Excessive Clutch Slippage
5-6 Shift
Shift Time Too Short
Shift Time Too Long
Intake Manifold Runner Ctrl Stuck Open Bank1
Intake Manifold Runner Ctrl Stuck Open Bank2
Intake Manifold Runner Ctrl Stuck Closed Bank1
Intake Manifold Runner Ctrl Stuck Closed Bank2
Intake Manifold Runner Ctrl Circ/Open Bank1
Intake Manifold Runner Ctrl Circ Low Bank1
Intake Manifold Runner Ctrl Circ High Bank1
Intake Manifold Runner Ctrl Circ/Open Bank2
Intake Manifold Runner Ctrl Circ Low Bank2
Intake Manifold Runner Ctrl Circ High Bank2
Intake Manifold Tuning (IMT) Valve Stuck Open
IMT Valve Stuck Closed
Exhaust Press Reg Vent Solenoid Ctrl Circ/Open
Exhaust Press Reg Vent Solenoid Ctrl Circ Low
Exhaust Press Reg Vent Solenoid Ctrl Circ High
Sys Too Lean Off Idle Bank1
Sys Too Rich Off Idle Bank1
Sys Too Lean Off Idle Bank2
Sys Too Rich Off Idle Bank2
Sys Too Lean at Idle Bank1
Sys Too Rich at Idle Bank1
Sys Too Lean at Idle Bank2
Sys Too Rich at Idle Bank2
Sys Too Lean at Higher Load Bank1
Sys Too Rich at Higher Load Bank1
Sys Too Lean at Higher Load Bank2
Sys Too Rich at Higher Load Bank2
Sec Air Inj Sys Ctrl A Circ Low
Sec Air Inj Sys Ctrl A Circ High
Sec Air Inj Sys Ctrl B Circ Low
Sec Air Inj Sys Ctrl B Circ High
T/S Charger Bypass Valve-Mechanical
Intake Air Sys Leak
EVAP Leak Detection Pump Ctrl Circ/Open
EVAP Leak Detection Pump Ctrl Circ Low
EVAP Leak Detection Pump Ctrl Circ High
EVAP Leak Detection Pump Sense Circ/Open
EVAP Leak Detection Pump Sense Circ Low
EVAP Leak Detection Pump Sense Circ High
EVAP Leak Detection Pump Sense Circ Interm/Erratic
EVAP Switching Valve Ctrl Circ /Open
EVAP Switching Valve Ctrl Circ Low
EVAP Switching Valve Ctrl Circ High
EVAP Vent Valve Stuck Open
EVAP Vent Valve Stuck Closed
Exhaust Gas Temp Too High Bank1
Exhaust Gas Temp Too High Bank2
Sec Air Inj Sys Switching Valve Stuck Open Bank1
Sec Air Inj Sys Switching Valve Stuck Closed Bank1
Sec Air Inj Sys Switching Valve Stuck Open Bank2
Sec Air Inj Sys Switching Valve Stuck Closed Bank2
Sec Air Inj Sys Pump Stuck On Bank1
Sec Air Inj Sys Pump Stuck Off Bank1
Sec Air Inj Sys Pump Stuck On Bank2
Sec Air Inj Sys Pump Stuck Off Bank2
Generator Lamp/L-Terminal Circ Low
Generator Lamp/L-Terminal Circ High
ECM/PCM Power Relay Sense Circ Interm
Event Data Recorder Request Circ/ Open
Event Data Recorder Request Circ Low
Event Data Recorder Request Circ High
A/C Request A Circ
A/C Request A Circ Low
A/C Request A Circ High
A/C Request B Circ
A/C Request B Circ Low
A/C Request B Circ High
A/C Ctrl Mod Requested MIL Illumination
Intake Air Heater A Circ/Open
Intake Air Heater B Circ Low
Intake Air Heater B Circ High
Intake Air Heater Sys Perf
ECM/PCM Internal Engine Off Timer Perf
A/C Refrigerant Distribution Valve Ctrl Circ/Open
A/C Refrigerant Distribution Valve Ctrl Circ Low
A/C Refrigerant Distribution Valve Ctrl Circ High
A Rocker Arm Actuator Ctrl Circ/Open Bank1
A Rocker Arm Actuator Sys Perf or Stuck Off Bank1
A Rocker Arm Actuator Sys Stuck On Bank1
A Rocker Arm Actuator Ctrl Circ Low Bank1
A Rocker Arm Actuator Ctrl Circ High Bank1
B Rocker Arm Actuator Ctrl Circ/Open Bank1
B Rocker Arm Actuator Sys Perf or Stuck Off Bank1
B Rocker Arm Actuator Sys Stuck On Bank1
B Rocker Arm Actuator Ctrl Circ Low Bank1
B Rocker Arm Actuator Ctrl Circ High Bank1
A Rocker Arm Actuator Ctrl Circ/Open Bank2
A Rocker Arm Actuator Sys Perf or Stuck Off Bank2
A Rocker Arm Actuator Sys Stuck On Bank2
A Rocker Arm Actuator Ctrl Circ Low Bank2
A Rocker Arm Actuator Ctrl Circ High Bank2
B Rocker Arm Actuator Ctrl Circ/Open Bank2
B Rocker Arm Actuator Sys Perf or Stuck Off Bank2
B Rocker Arm Actuator Sys Stuck On Bank2
B Rocker Arm Actuator Ctrl Circ Low Bank2
B Rocker Arm Actuator Ctrl Circ High Bank2
Shift Solenoid F
Shift Solenoid F Perf or Stuck Off
Shift Solenoid F Stuck On
Shift Solenoid F Electrical
Shift Solenoid F Interm
Hydraulic Power Unit Leakage
Press Ctrl Solenoid D
Press Ctrl Solenoid D Perf or Stuck Off
Press Ctrl Solenoid D Stuck On
Press Ctrl Solenoid D Electrical
Press Ctrl Solenoid D Interm
Press Ctrl Solenoid D Ctrl Circ / Open
Press Ctrl Solenoid D Ctrl Circ Low
Press Ctrl Solenoid D Ctrl Circ High
Press Ctrl Solenoid E
Press Ctrl Solenoid E Perf or Stuck Off
Press Ctrl Solenoid E Stuck On
Press Ctrl Solenoid E Electrical
Press Ctrl Solenoid E Interm
Press Ctrl Solenoid E Ctrl Circ / Open
Press Ctrl Solenoid E Ctrl Circ Low
Press Ctrl Solenoid E Ctrl Circ High
Press Ctrl Solenoid F
Press Ctrl Solenoid F Perf or Stuck Off
Press Ctrl Solenoid F Stuck On
Press Ctrl Solenoid F Electrical
Press Ctrl Solenoid F Interm
Press Ctrl Solenoid F Ctrl Circ/Open
Press Ctrl Solenoid F Ctrl Circ Low
Press Ctrl Solenoid F Ctrl Circ High
Trans Fluid Cooler Ctrl Circ/Open
Trans Fluid Cooler Ctrl Circ Low
Trans Fluid Cooler Ctrl Circ High
Torq Conv Clutch Press Ctrl Solenoid
Torq Conv Clutch Press Ctrl Solenoid Ctrl Circ Perf or Stuck Off
Torq Conv Clutch Press Ctrl Solenoid Ctrl Circ Stuck On
Torq Conv Clutch Press Ctrl Solenoid Ctrl Circ Electrical
Torq Conv Clutch Press Ctrl Solenoid Ctrl Circ Interm
Torq Conv Clutch Press Ctrl Solenoid Ctrl Circ/Open
Torq Conv Clutch Press Ctrl Solenoid Ctrl Circ High
Torq Conv Clutch Press Ctrl Solenoid Ctrl Circ Low
Torq Conv Clutch Circ Low
Torq Conv Clutch Circ High
4WD Low Switch Circ
4WD Low Switch Circ Low
4WD Low Switch Circ High
Upshift Switch Circ Low
Upshift Switch Circ High
Upshift Switch Circ Interm/Erratic
Downshift Switch Circ Low
Downshift Switch Circ High
Downshift Switch Circ Interm/Erratic
Torq Conv Temp Too High
Clutch Actuator Temp Too High
Clutch Temp Too High
Auto Shift Manual Adaptive Learning at Limit
Clutch Adaptive Learning at Limit
Gate Select Direction Circ
Gate Select Direction Circ Low
Gate Select Direction Circ High
Cyl1 Deactivation/Intake Valve Ctrl Circ/Open
Cyl1 Deactivation/Intake Valve Ctrl Perf
Cyl1 Deactivation/Intake Valve Ctrl Circ Low
Cyl1 Deactivation/Intake Valve Ctrl Circ High
Cyl1 Exhaust Valve Ctrl Circ/Open
Cyl1 Exhaust Valve Ctrl Perf
Cyl1 Exhaust Valve Ctrl Circ Low
Cyl1 Exhaust Valve Ctrl Circ High
Cyl2 Deactivation/Intake Valve Ctrl Circ/Open
Cyl2 Deactivation/Intake Valve Ctrl Perf
Cyl2 Deactivation/Intake Valve Ctrl Circ Low
Cyl2 Deactivation/Intake Valve Ctrl Circ High
Cyl2 Exhaust Valve Ctrl Circ/Open
Cyl2 Exhaust Valve Ctrl Perf
Cyl2 Exhaust Valve Ctrl Circ Low
Cyl2 Exhaust Valve Ctrl Circ High
Cyl3 Deactivation/Intake Valve Ctrl Circ/Open
Cyl3 Deactivation/Intake Valve Ctrl Perf
Cyl3 Deactivation/Intake Valve Ctrl Circ Low
Cyl3 Deactivation/Intake Valve Ctrl Circ High
Cyl3 Exhaust Valve Ctrl Circ/Open
Cyl3 Exhaust Valve Ctrl Perf
Cyl3 Exhaust Valve Ctrl Circ Low
Cyl3 Exhaust Valve Ctrl Circ High
Cyl4 Deactivation/Intake Valve Ctrl Circ/Open
Cyl4 Deactivation/Intake Valve Ctrl Perf
Cyl4 Deactivation/Intake Valve Ctrl Circ Low
Cyl4 Deactivation/Intake Valve Ctrl Circ High
Cyl4 Exhaust Valve Ctrl Circ/Open
Cyl4 Exhaust Valve Ctrl Perf
Cyl4 Exhaust Valve Ctrl Circ Low
Cyl4 Exhaust Valve Ctrl Circ High
Cyl5 Deactivation/Intake Valve Ctrl Circ/Open
Cyl5 Deactivation/Intake Valve Ctrl Perf
Cyl5 Deactivation/Intake Valve Ctrl Circ Low
Cyl5 Deactivation/Intake Valve Ctrl Circ High
Cyl5 Exhaust Valve Ctrl Circ/Open
Cyl5 Exhaust Valve Ctrl Perf
Cyl5 Exhaust Valve Ctrl Circ Low
Cyl5 Exhaust Valve Ctrl Circ High
Cyl6 Deactivation/Intake Valve Ctrl Circ/Open
Cyl6 Deactivation/Intake Valve Ctrl Perf
Cyl6 Deactivation/Intake Valve Ctrl Circ Low
Cyl6 Deactivation/Intake Valve Ctrl Circ High
Cyl6 Exhaust Valve Ctrl Circ/Open
Cyl6 Exhaust Valve Ctrl Perf
Cyl6 Exhaust Valve Ctrl Circ Low
Cyl6 Exhaust Valve Ctrl Circ High
Cyl7 Deactivation/Intake Valve Ctrl Circ/Open
Cyl7 Deactivation/Intake Valve Ctrl Perf
Cyl7 Deactivation/Intake Valve Ctrl Circ Low
Cyl7 Deactivation/Intake Valve Ctrl Circ High
Cyl7 Exhaust Valve Ctrl Circ/Open
Cyl7 Exhaust Valve Ctrl Perf
Cyl7 Exhaust Valve Ctrl Circ Low
Cyl7 Exhaust Valve Ctrl Circ High
Cyl8 Deactivation/Intake Valve Ctrl Circ/Open
Cyl8 Deactivation/Intake Valve Ctrl Perf
Cyl8 Deactivation/Intake Valve Ctrl Circ Low
Cyl8 Deactivation/Intake Valve Ctrl Circ High
Cyl8 Exhaust Valve Ctrl Circ/Open
Cyl8 Exhaust Valve Ctrl Perf
Cyl8 Exhaust Valve Ctrl Circ Low
Cyl8 Exhaust Valve Ctrl Circ High
Cyl9 Deactivation/Intake Valve Ctrl Circ/Open
Cyl9 Deactivation/Intake Valve Ctrl Perf
Cyl9 Deactivation/Intake Valve Ctrl Circ Low
Cyl9 Deactivation/Intake Valve Ctrl Circ High
Cyl9 Exhaust Valve Ctrl Circ/Open
Cyl9 Exhaust Valve Ctrl Perf
Cyl9 Exhaust Valve Ctrl Circ Low
Cyl9 Exhaust Valve Ctrl Circ High
Cyl10 Deactivation/Intake Valve Ctrl Circ/Open
Cyl10 Deactivation/Intake Valve Ctrl Perf
Cyl10 Deactivation/Intake Valve Ctrl Circ Low
Cyl10 Deactivation/Intake Valve Ctrl Circ High
Cyl10 Exhaust Valve Ctrl Circ/Open
Cyl10 Exhaust Valve Ctrl Perf
Cyl10 Exhaust Valve Ctrl Circ Low
Cyl10 Exhaust Valve Ctrl Circ High
Cyl11 Deactivation/Intake Valve Ctrl Circ/Open
Cyl11 Deactivation/Intake Valve Ctrl Perf
Cyl11 Deactivation/Intake Valve Ctrl Circ Low
Cyl11 Deactivation/Intake Valve Ctrl Circ High
Cyl11 Exhaust Valve Ctrl Circ/Open
Cyl11 Exhaust Valve Ctrl Perf
Cyl11 Exhaust Valve Ctrl Circ Low
Cyl11 Exhaust Valve Ctrl Circ High
Cyl12 Deactivation/Intake Valve Ctrl Circ/Open
Cyl12 Deactivation/Intake Valve Ctrl Perf
Cyl12 Deactivation/Intake Valve Ctrl Circ Low
Cyl12 Deactivation/Intake Valve Ctrl Circ High
Cyl12 Exhaust Valve Ctrl Circ/Open