P1100

MAF Intermittant (Mazda)

P1101

MAF Out Of Range (Mazda)

P1106

Manifold Absolute Pressure (MAP) sensor circuit intermittent high voltage

P1107

Manifold Absolute Pressure (MAP) sensor circuit intermittent low voltage

P1108

BARO to MAP signal circuit comparison too high

P1111

Intake Air Temperature (IAT) sensor intermittent high voltage

P1112

Intake Air Temperature (IAT) sensor intermittent low voltage

P1114

Engine Coolant Temperature (ECT) sensor circuit intermittent low voltage

P1115

Engine Coolant Temperature (ECT) sensor circuit intermittent high voltage

P1115

Intake Air Temperature 2 Circuit High Input (Ford)

P1116

ECT Sensor Out Of Range (Mazda)

P1116

ECT Sensor Out Of Range (Ford)

P1117

ECT Intermittent (Mazda)

P1117

ECT Intermittent (Ford)

P1120

TPS Out Of Range Low (Mazda)

P1120

TPS Out Of Range Low (Ford)

P1121

Throttle Position (TP) Sensor Inconsistent With MAF Sensor High Voltage

P1122

Throttle Position (TP) Sensor Inconsistent With MAF Sensor Low Voltage

P1124

TPS Out Of Self Teat Range (Mazda)

P1124

TPS Out Of Self Teat Range (Ford)

P1125

TPS Intermittant (Mazda)

P1125

TPS Intermittant (Ford)

P1127

Exhaust Not Warm Enough, Downstream Sensor Not Tested (Ford)

P1128

MAP Lower Than Expected (Acura)

P1129

Upstream O2 Sensors Swapped Bank To Bank (HO2S-11-21) (Ford)

P1129

MAP Higher Than Expected (Acura)

P1129

Downstream O2 Sensors Swapped Bank To Bank (HO2S-12-22) (Ford)

P1130

Heated O2 Sensor (HO2S) 11 At Adaptive Limit (Mazda)

P1130

Lack Of HO2S-11, Fuel Trim At Limit (Ford)

P1131

HO2S 11 Indicates Lean (Mazda)

P1131

HO2S 11 Indicates Lean (Ford)

P1132

HO2S 11 Indicates Rich (Mazda)

P1132

HO2S 11 Indicates Rich (Ford)

P1133

Heated Oxygen Sensor (HO2S) insufficient switching bank 1 sensor 1 (Rear Bank)

P1134

Heated Oxygen Sensor (HO2S) transition time ratio bank 1 sensor 1 (Rear Bank)

P1137

Lack Of HO2S-12 Switch Indicates Lean (Ford)

P1138

Lack Of HO2S-12 Switch Indicates Rich (Ford)

P1150

Lack Of HO2S-21 Switch Fuel Trim At Limit (Ford)

P1151

Lack Of HO2S-21 Switch Indicates Lean (Ford)

P1152

Lack Of HO2S-21 Switch Indicates Rich (Ford)

P1153

Heated Oxygen Sensor (HO2S) insufficient switching bank 2 sensor 1 (Front Bank)

P1154

Heated Oxygen Sensor (HO2S) transition time ratio bank 2 sensor 1 (Front Bank)

P1157

Lack Of HO2S-22 Switch Indicates Lean (Ford)

P1158

Lack Of HO2S-22 Switch Indicates Rich (Ford)

P1168

FRP Sensor In Range But Low (Ford)

P1169

FRP Sensor In Range But High (Ford)

P1180

Fuel Delivery System Low (Ford)

P1181

Fuel Delivery System High (Ford)

P1183

EOT Sensor Circuit Malfunction (Ford)

P1184

EOT Sensor Out Of Range (Ford)

P1189

Engine Oil Pressure Switch Circuit

P1192

Inlet Air Temp. Circuit Low (Chrysler)

P1193

Inlet Air Temp. Circuit High (Chrysler)

P1195

1/1 O2 Sensor Slow During Catalyst Monitor (Chrysler)

P1196

2/1 O2 Sensor Slow During Catalyst Monitor (Chrysler)

P1197

1/2 O2 Sensor Slow During Catalyst Monitor (Chrysler)

P1198

Radiator Temperature Sensor Volts Too High (Chrysler)

P1199

Radiator Temperature Sensor Volts Too Low (Chrysler)

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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