Common questions

What does p0122 mean on a TPS sensor?

What does p0122 mean on a TPS sensor?

A P0122 code means that the the vehicle’s computer has detected that the TPS (throttle position sensor) “A” is reporting too low a voltage.

What is the return voltage of the TP sensor?

There are three wires attached to the TPS: power, ground and signal. Power, or reference voltage, goes into the TPS. The sensor then sends a return signal voltage to the PCM. The return voltage depends on throttle positon. Typically, the signal value at idle will be about .45 volts.

What are the symptoms of a TPS sensor failure?

The throttle angle info the throttle position sensor (TPS) provides is key to engine performance. So, when this bad boy fails, your Jeep is gonna’ resent it. You’ll see one or more of the following symptoms: Check engine light (CEL) shining nice and bright. P0121: TP Sensor Voltage Does Not Agree with MAP sensor.

What happens if the TPS is bad on a multimeter?

If the TPS is bad, the tapping will cause the voltage numbers to skip or go blank. If the TPS is OK, the tapping will have no effect on the voltage numbers. Repeat step 9 several times to make sure of your multimeter test results. Let’s take a look at your test results:

A P0122 code means that the the vehicle’s computer has detected that the TPS (throttle position sensor) “A” is reporting too low a voltage.

There are three wires attached to the TPS: power, ground and signal. Power, or reference voltage, goes into the TPS. The sensor then sends a return signal voltage to the PCM. The return voltage depends on throttle positon. Typically, the signal value at idle will be about .45 volts.

What should the TPS sensor read at idle?

Typically, the sensor should read around 4.5 volts at wide open throttle and .45 volts with the throttle at the idle position. You can also test the TPS with a scan tool. Connect the scan tool to the diagnostic port, and scroll through the PID list until you find the TPS voltage or position PID.

How to test the resistance of a TPS?

You can test a TPS in two ways, You can simply test the resistance with an Ohm meter or you can test the voltage change that occurs in the reference circuit. The mistake you are making is connecting the multimeter to the negative battery post.

What is the diagnostic code for throttle / pedal position sensor?

P2138 is a diagnostic trouble code (DTC) for “Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

How is the throttle position sensor ( TPS ) used?

The throttle position sensor (TPS) is used to inform the powertrain control module (PCM) of throttle position. The PCM uses this information to determine control of various output devices, such as the fuel injectors, transmission shift solenoids, etc.

Where is the throttle position sensor on a 3.8L GM engine?

(The tab inside the sensor MUST be touching the rotating pins in the throttle body. In a 3.8L GM engine, this means inserting it with then connector at 12 o’clock before rotating it to 9 o’clock for the final mounting position.)

Where is the TPS sensor on a Chevy truck?

Locate the TPS sensor on the passenger side of the throttle body. Unplug the harness connected to the TPS sensor. Place the black probe from the voltmeter on the middle terminal inside the TPS. Place the voltmeter’s red probe on the the top, rearward terminal of the TPS. Put the key in the ignition.

How to diagnose p0120 TP sensor 1 malfunction?

This test tutorial will help you diagnose a P0120: Throttle Position (TP) Sensor 1 Malfunction with the Throttle Actuator Control (TAC) Throttle Body in a step-by-step manner using only a multimeter.

How to fix Chevy throttle position sensor p0122?

– YouTube 2000-2006 Chevy Throttle Position Sensor P0122 (HARD SHIFTING SOLVED HERE!) If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

What are the DTC codes for the throttle position sensor?

TPS diagnostic trouble codes (DTC’s) stored in the vehicle’s computer’s memory. P0121: Throttle Position Sensor Performance. P0122: Throttle Position Sensor Circuit Low Voltage. P0123: Throttle Position Sensor Circuit High Voltage. Really bad gas mileage. Transmission does not shift out of second gear.

Typically, the sensor should read around 4.5 volts at wide open throttle and .45 volts with the throttle at the idle position. You can also test the TPS with a scan tool. Connect the scan tool to the diagnostic port, and scroll through the PID list until you find the TPS voltage or position PID.

What’s the lower voltage limit for code p0122?

Depending on your vehicle, your TPS lower output voltage limit should be around.17 to.20 volts, and if the ECM detects that it has dipped below that, then it will trigger Code P0122. What Are the Symptoms of Code P0122?

What are the symptoms of a faulty throttle position sensor?

What are the symptoms of code P0122 ? Symptoms consistent with a faulty throttle position sensor include: hesitation or stumbling upon acceleration, unstable idle, and an illuminated check engine light. In some cases, a no-start condition may even result.

What does a p0122 code on a Ford car mean?

A P0122 code means that the the car’s computer has detected that the TPS (throttle position sensor) is reporting too low a voltage.

Depending on your vehicle, your TPS lower output voltage limit should be around.17 to.20 volts, and if the ECM detects that it has dipped below that, then it will trigger Code P0122. What Are the Symptoms of Code P0122?

What does the code p0122 on the ECM mean?

What Does Code P0122 Mean? Code P0122 is triggered when your vehicle’s Engine Control Module (ECM) detects that your Throttle Position Sensor (TPS) circuit A is reporting an output voltage that is below its expected voltage.

What are the symptoms of a p0216 DTC?

Symptoms of a P0216 DTC may include: Displays an intermittent stumble or miss Engine may start and then stall Engine may appear to drive fine but surge at idle The most frequent cause of this code is a bad injection pump due to poor fuel delivery. Fuel delivery problems could be: A plugged diesel fuel filter

How does a mechanic find the p0216 code?

A mechanic diagnoses the P0216 code by using service information to locate the crankshaft position sensor and the camshaft position sensor (s) on the engine being diagnosed. Once these sensors are located, the mechanic would inspect them and their wiring for any damages that may exist.

What does the p0122 code on a PCM mean?

What Does the P0122 Code Mean? Diagnostic Trouble Code (DTC) P0122 stands for “Throttle Position Sensor/Switch A Circuit Low Input.” The powertrain control module (PCM) logs a P0122 code when the throttle position sensor “A” displays lower voltage than normal.

Symptoms of a P0216 DTC may include: Displays an intermittent stumble or miss Engine may start and then stall Engine may appear to drive fine but surge at idle The most frequent cause of this code is a bad injection pump due to poor fuel delivery. Fuel delivery problems could be: A plugged diesel fuel filter

What to do if p1693, p0122 code returns?

If the P1693, P0122 codes return, then you’ve got a connection problem. This can be common after replacing the APPS. Remove the connector from the APPS and inspect the pins and wiring for breaks or corrosion.

What are the causes of DPF fault codes?

P2003 Diesel particulate filter (bank 1) particulate mass too high. P242F Diesel particulate filter (bank 1) regeneration not active. P244A Particulate filter differential pressure too low. P224B Particulate filter differential pressure too high. P2452 Particulate filter differential pressure sensor malfunction.

What to do if your throttle position sensor is too low?

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.

What does TPS ” a ” mean on a Ford Focus?

P0122 will trigger in your Ford Focus if it’s TPS “A” circuit is reporting a voltage number that is too low. It’s a general powertrain code, which means that it has the same meaning regardless of who manufactured the vehicles (1996+).

What is OBDII code for Ford Focus p0122?

P0122 is a common trouble code with the Ford Focus. It’s an OBDII code that references issues with the Throttle Position Sensor (TPS). It is relatively serious problem since it can leave your vehicle stranded or severely limited. OBDII code P0122 is a serious problem that requires serious attention.

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.

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Ruth Doyle