B2200 No communication to TV module (no fitting of TV)
B2201 No communication with Traffic Master module
B2202 No communication to VICS module (no fitting of VICS)
B2203 CD-ROM error
B2204 GPS antenna connection open or short
B2205 GPS recieve error
B2206 Gyroscope error
B2207 ECU ROM checksum error
B2208 Communication link to display and switch module error
B2209 Interior lamp override switch open circuit
B2210 Interior lamp override switch short to ground
B2211 Low coolant lamp output circuit short to battery
B2214 Window passenger front up switch short to battery
B2215 Window passenger front down switch short to battery
B2219 Window driver front current feedback exceeded
B2220 Window driver rear current feedback exceeded
B2221 Window passenger front current feedback exceeded
B2222 Window passenger rear current feedback exceeded
B2223 Driver mirror drive circuit failure
B2224 Passenger mirror drive circuit failure
B2225 Front crash sensor mount fault
B2226 Front crash sensor internal fault
B2227 Front crash sensor driver communications fault
B2228 Air bag driver circuit short to ground – loop #2
B2229 Air bag passenger circuit short to ground – loop #2
B2230 Air bag driver circuit short to battery – loop #2
B2231 Air bag passenger circuit short to battery – loop #2
B2232 Driver airbag open circuit – loop #2
B2233 Passenger airbag open circuit – loop #2
B2234 Air bag driver inflator circuit resistance low on squib – loop #2
B2235 Air bag passenger inflator circuit resistance low on squib – loop #2
B2236 Weak or defected electric vehicle battery module fault
B2237 Vehicle signal indicating park while VSS (Vehicle Speed Signal) present
B2238 Power cable for power sliding door broken
B2239 Rear cargo door set switch stuck (short to ground)
B2240 Rear cargo door reset switch stuck (short to ground)
B2241 Rear cargo door lock circuit short to ground
B2242 Rear cargo door unlock circuit open
B2243 Driver rear door ajar circuit open
B2244 Driver sliding door ajar circuit short to ground
B2245 Passenger rear door ajar circuit open
B2246 Passenger sliding door ajar circuit short to ground
B2247 EV (Electric Vehicle) battery pack temperature fault
B2248 Heated windsheild relay coil circuit failure
B2249 Head lamp relay coil short to battery
B2250 All doors unlock relay circuit failure
B2251 Parklamp output relay driver circuit failure
B2252 Parklamp output relay driver short to battery
P0100
Mass or Volume Air flow Circuit Malfunction
P0101
Mass or Volume Air flow Circuit Range/Performance Problem
P0102
Mass or Volume Air Flow Circuit low Input
P0103
Mass or Volume Air flow Circuit High Input
P0104
Mass or Volume Air flow Circuit Intermittent
P0105
Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
P0106
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
P0107
Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0108
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
P0109
Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
P0110
Intake Air Temperature Circuit Malfunction
P0111
Intake Air Temperature Circuit Range/Performance Problem
P0112
Intake Air Temperature Circuit Low Input
P0113
Intake Air Temperature Circuit High Input
P0114
Intake Air Temperature Circuit Intermittent
P0115
Engine Coolant Temperature Circuit Malfunction
P0116
Engine Coolant Temperature Circuit Range/Performance Problem
P0117
Engine Coolant Temperature Circuit Low Input
P0118
Engine Coolant Temperature Circuit High Input
P0119
Engine Coolant Temperature Circuit Intermittent
P0120
Throttle Pedal Position Sensor/Switch A Circuit Malfunction
P0121
Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
P0122
Throttle/Pedal Position Sensor/Switch A Circuit Low Input
P0123
Throttle/Pedal Position Sensor/Switch A Circuit High Input
P0124
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
P0125
Insufficient Coolant Temperature for Closed Loop Fuel Control
P0126
Insufficient Coolant Temperature for Stable Operation
P0130
Ox Sensor Circuit Malfunction (Bank 1 Sensor 1)
P0131
Ox Sensor Circuit Low Voltage (Bank 1 Sensor 1)
P0132
Ox Sensor Circuit High Voltage (Bank 1 Sensor 1)
P0133
Ox Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134
Ox Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135
Ox Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0136
Ox Sensor Circuit Malfunction (Bank 1 Sensor 2)
P0137
Ox Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138
Ox Sensor Circuit High Voltage (Bank 1 Sensor 2)
P0139
Ox Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140
Ox Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141
Ox Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0142
Ox Sensor Circuit Malfunction (Bank 1 Sensor 3)
P0143
Ox Sensor Circuit Low Voltage (Bank 1 Sensor 3)
P0144
Ox Sensor Circuit High Voltage (Bank 1 Sensor 3)
P0145
Ox Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146
Ox Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
P0147
Ox Sensor Heater Circuit Malfunction (Bank 1 Sensor 3)
P0150
Ox Sensor Circuit Malfunction (Bank 2 Sensor 1)
P0151
Ox Sensor Circuit Low Voltage (Bank 2 Sensor 1)
P0152
Ox Sensor Circuit High Voltage (Bank 2 Sensor 1)
P0153
Ox Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0154
Ox Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0155
Ox Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0156
Ox Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0157
Ox Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158
Ox Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0159
Ox Sensor Circuit Slow Response (Bank 2 Sensor 2)
P0160
Ox Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161
Ox Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
P0162
Ox Sensor Circuit Malfunction (Bank 2 Sensor 3)
P0163
Ox Sensor Circuit Low Voltage (Bank 2 Sensor 3)
P0164
Ox Sensor Circuit High Voltage (Bank 2 Sensor 3)
P0165
Ox Sensor Circuit Slow Response (Bank 2 Sensor 3)
P0166
Ox Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
P0167
Ox Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)
P0170
Fuel Trim Malfunction (Bank 1)
P0171
System Too Lean (Bank 1)
P0172
System Too Rich (Bank 1)
P0173
Fuel Trim Malfunction (Bank 2)
P0174
System Too Lean (Bank 2)
P0175
System Too Rich (Bank 2)
P0176
Fuel Composition Sensor Circuit Malfunction
P0177
Fuel Composition Sensor Circuit Range/Performance
P0178
Fuel Composition Sensor Circuit Low Input
P0179
Fuel Composition Sensor Circuit High Input
P0180
Fuel Temperature Sensor A Circuit Malfunction
P0181
Fuel Temperature Sensor A Circuit Performance
P0182
Fuel Temperature Sensor A Circuit low Input
P0183
Fuel Temperature Sensor A Circuit High Input
P0184
Fuel Temperature Sensor A Circuit Intermittent
P0185
Fuel Temperature Sensor B Circuit Malfunction
P0186
Fuel Temperature Sensor B Circuit Range/Performance
P0187
Fuel Temperature Sensor U Circuit Low Input
P0188
Fuel Temperature Sensor B Circuit High Input
P0189
Fuel Temperature Sensor B Circuit Intermittent
P0190
Fuel Rail Pressure Sensor Circuit Malfunction
P0191
Fuel Rail Pressure Sensor Circuit Range/Performance
P0192
Fuel Rail Pressure Sensor Circuit Low Input
P0193
Fuel Rail Pressure Sensor Circuit High Input
P0194
Fuel Rail Pressure Sensor Circuit Intermittent
P0195
Engine Oil Temperature Sensor Malfunction
P0196
Engine Oil Temperature Sensor Range/Performance
P0197
Engine Oil Temperature Sensor Low
P0198
Engine Oil Temperature Sensor High
P0199
Engine Oil Temperature Sensor Intermittent
System Too Lean – Bank 1
Description:
How does a P0171 code trigger the check engine light? This code will trigger the check engine light as follows:
The adaptive fuel strategy in the vehicle’s computer constantly monitors the fuel delivery system to make sure the engine is running at an optimum air to fuel ratio, which is 14.7:1. The computer adjusts injector pulse width to regulate the amount of fuel going into the engine. The oxygen sensors relay information to the Powertrain Control Module (computer), informing it of the oxygen content in the exhaust. This information is translated by the computer, and used to determine if more or less fuel is needed. The computer will then adjust fuel flow (and possibly other related engine operating characteristics), to keep the correct air fuel mixture. This loop continues as long as the engine is running. Please refer to our article Oxygen Sensor Code Diagnosis for more info on this system. A P0171 check engine light code is set when the computer has reached a rich calibration limit and can not add enough fuel to maintain the correct mixture.
Possible Causes:
Refer to our Oxygen Sensor Code Diagnosis article for a list of all possible causes. The following is an overview of P0171 check engine light code possible causes.
Fuel System:
Leaking or faulty fuel pressure regulator
Plugged or dirty fuel filter or lines
Fuel pump weak or defective check valve
Injectors leaking or faulty
Low fuel pressure or running out of fuel
Leaking EVAP system components
Faulty FRP (Fuel Rail Pressure Sensor)
Air Intake System
Vacuum leaks
Contaminated, damaged or faulty Mass Air Flow sensor
PCV valve leak or stuck open
Air induction turbulance caused by wrong filter
Oil dipstick not seated
Air leaks after the Mass Air Flow Sensor (MAF)
Oil coated aftermarket air filter
Exhaust System
Any exhaust leak before or near the oxygen sensors
EGR System
Vacuum line disconnected from EGR System Module (ESM)
EGR valve, tube or gasket leak
EGR vacuum regulator valve leaking
Secondary Air Injection System
Mechanically stuck secondary air injection valve
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