P1500
Vehicle Speed Sensor (VSS) (Mazda)
P1500
Vehicle Speed Sensor (VSS) Intermittant (Ford)
P1501
Vehicle Speed Sensor (VSS) Out Of Range (Ford)
P1502
Vehicle Speed Sensor (VSS) Intermittant (Ford)
P1505
Idle Air Control At Adaptive Clip (Mazda)
P1506
Idle Air Control System Overspeed Error (Mazda)
P1506
Idle Air Control System Overspeed Error (Ford)
P1507
Idle Air Control System Underspeed Error (Mazda)
P1507
Idle Air Control System Underspeed Error (Ford)
P1508
Idle Air Control (IAC) System – Low RPM
P1508
Idle Air Control Valve Circuit Failure (Acura)
P1516
Inlet Manifold Runner Control Input Error (Bank 1) (Ford)
P1517
Inlet Manifold Runner Control Input Error (Bank 2) (Ford)
P1518
Inlet Manifold Runner Control Stuck Open (Ford)
P1519
Malfunction In IAC Valve Circuit (Acura)
P1519
Inlet Manifold Runner Control Stuck Closed (Ford)
P1520
Intake Manifold Runner Control (IMRC) circuit malfunction
P1524
Throttle Position (TP) Sensor Learned Closed Throttle Angle Degrees Out-Of-Range
P1527
Trans Range / Pressure Switch Comparison
P1546
Air Conditioning (A/C) Clutch Relay Control Circuit (GM)
P1549
Intake Manifold Control Circuit Malfunction (Ford)
P1550
PSP Sensor Malfunction (Ford)
P1554
Cruise Engaged Circuit High Voltage
P1560
Cruise Control System-Transaxle Not in Drive
P1564
Cruise Control System-Vehicle Acceleration too high
P1566
Cruise Control System-Engine RPM Too High
P1567
Cruise Control- ABCS Active
P1570
Cruise Control System – Traction Control Active
P1571
Traction Control System PWM Circuit No Frequency
P1572
Brake Pedal Switch Circuit (Ford)
P1574
EBTCM System- Stop Lamp Switch Circuit High Voltage
P1575
Extended Travel Brake Switch Circuit High Voltage
P1579
Park/Neutral to Drive/Reverse At high Throttle Angle
P1585
Cruise Control Inhibit Output Circuit (GM)
P1594
Charging System Voltage Too High (Chrysler)
P1595
Speed Control Solenoid Circuits (Chrysler)
P1596
Speed Control Switch always High (Chrysler)
P1597
Speed Control Switch always Low (Chrysler)
P1598
A/C Pressure Sensor Volts Too High (Chrysler)
P1599
A/C Pressure Sensor Volts Too Low (Chrysler)
P1599
Engine Stall or Near Stall Detected
P0801
Reverse Inhibit Control Circuit Malfunction
P0803
1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
P0804
1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction
P0805
Clutch Position Sensor Circuit Malfunction
P0806
Clutch Position Sensor Circuit Range/Performance Malfunction
P0807
Clutch Position Sensor Circuit Low Malfunction
P0808
Clutch Position Sensor Circuit High Malfunction
P0809
Clutch Position Sensor Circuit Intermittent Malfunction
P0810
Clutch Position Control Error
P0811
Excessive Clutch Slippage
P0812
Reverse Input Circuit
P0813
Reverse Output Circuit
P0814
Transmission Range Display Circuit
P0815
Upshift Switch Circuit
P0816
Downshift Switch Circuit
P0817
Starter Disable Circuit
P0818
Driveline Disconnect Switch Input Circuit
P0820
Gear Lever X – Y Position Sensor Circuit
P0821
Gear Lever X Position Circuit
P0822
Gear Lever Y Position Circuit
P0823
Gear Lever X Position Circuit Intermittent
P0824
Gear Lever Y Position Circuit Intermittent
P0825
Gear Lever Push – Pull Switch (Shift Anticipate)
P0830
Clutch Pedal Switch “A” Circuit
P0831
Clutch Pedal Switch “A” Circuit Low
P0832
Clutch Pedal Switch “A” Circuit High
P0833
Clutch Pedal Switch “B” Circuit
P0834
Clutch Pedal Switch “B” Circuit Low
P0835
Clutch Pedal Switch “B” Circuit High
P0836
Four Wheel Drive (4WD) Switch Circuit
P0837
Four Wheel Drive (4WD) Switch Circuit Range/Performance
P0838
Four Wheel Drive (4WD) Switch Circuit Low
P0839
Four Wheel Drive (4WD) Switch Circuit High
P0840
Transmission Fluid Pressure Sensor/Switch “A” Circuit
P0841
Transmission Fluid Pressure Sensor/Switch “A” Circuit Range/Performance
P0842
Transmission Fluid Pressure Sensor/Switch “A” Circuit Low
P0843
Transmission Fluid Pressure Sensor/Switch “A” Circuit High
P0844
Transmission Fluid Pressure Sensor/Switch “A” Circuit Intermittent
P0845
Transmission Fluid Pressure Sensor/Switch “B” Circuit
P0846
Transmission Fluid Pressure Sensor/Switch “B” Circuit Range/Performance
P0847
Transmission Fluid Pressure Sensor/Switch “B” Circuit Low
P0848
Transmission Fluid Pressure Sensor/Switch “B” Circuit High
P0849
Transmission Fluid Pressure Sensor/Switch “B” Circuit Intermittent
P0200
Injector Circuit Malfunction
P0201
Injector Circuit Malfunction – Cylinder 1
P0202
Injector Circuit Malfunction – Cylinder 2
P0203
Injector Circuit Malfunction – Cylinder 3
P0204
Injector Circuit Malfunction – Cylinder 4
P0205
Injector Circuit Malfunction – Cylinder 5
P0206
Injector Circuit Malfunction – Cylinder 6
P0207
Injector Circuit Malfunction – Cylinder 7
P0208
Injector Circuit Malfunction – Cylinder 8
P0209
Injector Circuit Malfunction – Cylinder 9
P0210
Injector Circuit Malfunction – Cylinder 10
P0211
Injector Circuit Malfunction – Cylinder 11
P0212
Injector Circuit Malfunction – Cylinder 12
P0213
Cold Start Injector 1 Malfunction
P0214
Cold Start Injector 2 Malfunction
P0215
Engine Shutoff Solenoid Malfunction
P0216
Injection Timing Control Circuit Malfunction
P0217
Engine Overtemp Condition
P0218
Transmission Over Temperature Condition
P0219
Engine Over Speed Condition
P0220
Throttle/Pedal Position Sensor/Switch B Circuit Malfunction
P0221
Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance Problem
P0222
Throttle/Pedal Position Sensor/Switch B Circuit Low Input
P0223
Throttle/Pedal Position Sensor/Switch B Circuit High Input
P0224
Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
P0225
Throttle/Pedal Position Sensor/Switch C Circuit Malfunction
P0226
Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance Problem
P0227
Throttle/Pedal Position Sensor/Switch C Circuit Low Input
P0228
Throttle/Pedal Position Sensor/Switch C Circuit High Input
P0229
Throttle/Pedal Position Sensor/Switch C Circuit Intermittent
P0230
Fuel Pump Primary Circuit Malfunction
P0231
Fuel Pump Secondary Circuit Low
P0232
Fuel Pump Secondary Circuit High
P0233
Fuel Pump Secondary Circuit Intermittent
P0234
Turbocharger Overboost Condition
P0235
Turbocharger Boost Sensor A Circuit Malfunction
P0236
Turbocharger Boost Sensor A Circuit Range/Performance
P0237
Turbocharger Boost Sensor A Circuit Low
P0238
Turbocharger Boost Sensor A Circuit High
P0239
Turbocharger Boost Sensor B Circuit Malfunction
P0240
Turbocharger Boost Sensor B Circuit Range/Performance
P0241
Turbocharger Boost Sensor B Circuit Low
P0242
Turbocharger Boost Sensor B Circuit High
P0243
Turbocharger Wastegate Solenoid A Malfunction
P0244
Turbocharger Wastegate Solenoid A Range/Performance
P0245
Turbocharger Wastegate Solenoid A low
P0246
Turbocharger Wastegate Solenoid A High
P0247
Turbocharger Wastegate Solenoid B Malfunction
P0248
Turbocharger Wastegate Solenoid B Range/Performance
P0249
Turbocharger Wastegate Solenoid B Low
P0250
Turbocharger Wastegate Solenoid B High
P0251
Injection Pump Fuel Metering Control “A” Malfunction (Cam/Rotor/Injector)
P0252
Injection Pump Fuel Metering Control “A” Range/Performance (Cam/Rotor/Injector)
P0253
Injection Pump Fuel Metering Control “A” Low (Cam/Rotor/Injector)
P0254
Injection Pump Fuel Metering Control “A” High (Cam/Rotor/Injector)
P0255
Injection Pump Fuel Metering Control “A” Intermittent (Cam/Rotor/Injector)
P0256
Injection Pump Fuel Metering Control “B” Malfunction (Cam/Rotor/Injector)
P0257
Injection Pump Fuel Metering Control “B” Range/Performance (Cam/Rotor/Injector)
P0258
Injection Pump Fuel Metering Control “B” Low (Cam/Rotor/Injector)
P0259
Injection lump Fuel Metering Control “B” High (Cam/Rotor/Injector)
P0260
Injection Pump Fuel Metering Control “B” Intermittent (Cam/Rotor/Injector)
P0261
Cylinder 1 Injector Circuit Low
P0262
Cylinder 1 Injector Circuit High
P0263
Cylinder 1 Contribution/Balance Fault
P0264
Cylinder 2 Injector Circuit Low
P0265
Cylinder 2 Injector Circuit High
P0266
Cylinder 2 Contribution/Balance Fault
P0267
Cylinder 3 Injector Circuit Low
P0268
Cylinder 3 Injector Circuit High
P0269
Cylinder 3 Contribution/Balance Fault
P0270
Cylinder 4 Injector Circuit Low
P0271
Cylinder 4 Injector Circuit High
P0272
Cylinder 4 Contribution/Balance Fault
P0273
Cylinder 5 Injector Circuit Low
P0274
Cylinder 5 Injector Circuit High
P0275
Cylinder 5 Contribution/Balance Fault
P0276
Cylinder 6 Injector Circuit Low
P0277
Cylinder 6 Injector Circuit High
P0278
Cylinder 6 Contribution/Balance Fault
P0279
Cylinder 7 Injector Circuit Low
P0280
Cylinder 7 Injector Circuit High
P0281
Cylinder 7 Contribution/Balance Fault
P0282
Cylinder 8 Injector Circuit Low
P0283
Cylinder 8 Injector Circuit High
P0284
Cylinder 8 Contribution/Balance Fault
P0285
Cylinder 9 Injector Circuit Low
P0286
Cylinder 9 Injector Circuit High
P0287
Cylinder 9 Contribution/Balance Fault
P0288
Cylinder 10 Injector Circuit Low
P0289
Cylinder 10 Injector Circuit High
P0290
Cylinder 10 Contribution/balance Fault
P0291
Cylinder 11 Injector Circuit Low
P0292
Cylinder 11 Injector Circuit High
P0293
Cylinder 11 Contribution/balance Fault
P0294
Cylinder 12 Injector Circuit Low
P0295
Cylinder 12 Injector Circuit High
P0296
Cylinder 12 Contribution/Balance Fault
P0298
Engine Oil Over Temperature
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
Throttle/Pedal Position Sensor/Switch “A” Circuit Low Input
Our emissions expert has put together the following information about the P0122 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code
OBD II P0122
Fault Code Definition
Code P0122 is triggered when the voltage output from the Throttle/Pedal Position Sensor/Switch to the PCM is too low.
The Throttle Position Sensor/Switch is located on the Throttle Body of the Intake Manifold and the Pedal Position Sensor/Switch is located on the Accelerator Pedal. These sensors provide precise input from the driver’s foot in terms of how much power is needed—and how urgently—from the engine.
As the Throttle Position Sensor is rotated from its base resting position to full acceleration, it sends a increasing voltage signal to the Powertrain Control Module (PCM). This decreasing or increasing voltage signal is used by the PCM to manage the Air Fuel Ratio and Spark Timing of the engine as well as other emissions system components.
Symptoms
Check Engine Light will illuminate
In many cases, no abnormal symptoms may be noticed
In some cases, the engine may be hard starting
In some cases, the engine may hesitate during acceleration
Common Problems That Trigger the P0122 Code
Defective Throttle Position Sensor or Switch
Torn or jammed floor mats
Faulty or corroded Throttle/Pedal Position Sensor/Switch wiring or connections
Common Misdiagnoses
Throttle or Pedal Position Sensor is replaced when the real problem is a poor connection or chafed wiring
Pedal Position Sensor is replaced when the real problem is torn or damaged floor mats
Possible Solutions
Some recommended troubleshooting and repair steps are:
Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it’s not rubbing on anything, grounding, etc. The code may come back.
Other TPS sensor and circuit related DTCs: P0120, P0121, P0123, P0124
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