P2130 Throttle/Pedal Position Sensor/Switch "F" Circuit Malfunction

The P2130 Throttle/Pedal Position Sensor/Switch "F" Circuit Malfunction diagnostic trouble code indicates that the Engine Control Module (ECM/PCM) has detected a malfunction in the electrical circuit associated with the throttle or accelerator pedal position F circuit.

In simple terms, the vehicle's computer has detected that the F throttle/pedal position circuit is not operating correctly.

The F circuit is part of the system that allows the ECM to monitor throttle position or accelerator pedal movement. Modern vehicles commonly use multiple position signals so the ECM can continuously verify throttle operation and detect unsafe or implausible conditions.

Depending on the vehicle, P2130 may cause the Check Engine Light, reduced engine power, poor throttle response, hesitation, limp mode, inconsistent acceleration, rough idle, engine stalling, or cruise-control deactivation.

The exact component and physical location of the F circuit vary by manufacturer. It may be part of the accelerator pedal position sensor system, electronic throttle body, or another throttle/pedal position circuit.

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What Does P2130 Mean?

P2130 means the ECM/PCM has detected a general malfunction in the throttle/pedal position sensor or switch F circuit.

Unlike the more specific codes in this group:

• P2131 indicates a range/performance problem.

• P2132 indicates low input.

• P2133 indicates high input.

• P2134 indicates an intermittent condition.

P2130 is a broader circuit malfunction code.

The ECM may set P2130 when the F circuit has an electrical or signal problem that does not fit a more specific failure category.

Possible causes include:

• Faulty position sensor

• Damaged wiring

• Open circuit

• Short circuit

• Poor electrical connection

• Corroded connector

• Loose terminal

• Poor sensor ground

• Reference-voltage problem

• Electronic throttle-body fault

• Accelerator pedal assembly fault

• ECM/PCM problem

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What Is the Throttle/Pedal Position Sensor?

Throttle and accelerator pedal position sensors provide the ECM with information about the position of the accelerator pedal and/or throttle plate.

Modern vehicles generally use electronic throttle control (ETC).

A typical system works as follows:

1. The driver presses the accelerator pedal.

2. Accelerator pedal position sensors detect movement.

3. The sensors send electrical signals to the ECM.

4. The ECM calculates the requested engine torque.

5. The ECM commands the electronic throttle actuator.

6. The throttle plate moves.

7. Throttle position sensors provide feedback.

8. The ECM compares the signals to verify proper operation.

Multiple sensor circuits provide redundancy so that a single sensor or circuit fault can be detected.

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What Does "F Circuit" Mean?

The F designation identifies a specific throttle or pedal position sensor circuit assigned by the vehicle manufacturer.

It does not necessarily refer to a separate physical sensor named "F."

Depending on the vehicle, the F circuit may be:

• Part of the accelerator pedal assembly

• Integrated into the electronic throttle body

• One of several throttle position signals

• One of several accelerator pedal position signals

• Part of a redundant electronic throttle-control system

The exact circuit location, connector pin, signal voltage, and component must be confirmed using vehicle-specific service information and wiring diagrams.

The F circuit designation is not universal across all vehicle manufacturers.

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What Does "Circuit Malfunction" Mean?

"Circuit malfunction" means the ECM has determined that the electrical circuit or its signal is not operating as expected.

The ECM may monitor several characteristics, including:

• Voltage

• Signal continuity

• Reference voltage

• Ground

• Signal plausibility

• Sensor response

• Relationship to other throttle/pedal signals

A circuit malfunction can therefore be caused by either an electrical problem or a sensor/component problem.

P2130 does not automatically identify which component has failed.

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Symptoms of P2130

Symptoms can vary depending on the vehicle and the severity of the circuit fault.

Check Engine Light

The Check Engine Light may illuminate.

Reduced Engine Power

The ECM may restrict engine output as a safety measure.

Poor Throttle Response

The accelerator pedal may respond slowly or inconsistently.

Hesitation

The engine may hesitate when accelerating.

Poor Acceleration

The vehicle may have reduced or inconsistent power.

Limp Mode

The ECM may place the vehicle into a reduced-power or fail-safe mode.

Inconsistent Engine Response

The engine may not respond correctly to accelerator-pedal movement.

Engine Surging

Some vehicles may experience unstable engine-speed changes.

Rough Idle

Incorrect throttle-position information can affect idle operation.

Engine Stalling

A severe throttle-control fault may contribute to stalling.

Cruise Control Disabled

Cruise control may be disabled.

Warning Messages

Depending on the vehicle, the dashboard may display:

• Reduced Engine Power

• Service Throttle System

• Electronic Throttle Control Fault

• Engine Fault

• Drive System Fault

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Common Causes of P2130

Faulty Throttle or Pedal Position Sensor

A defective sensor can cause a general circuit malfunction.

Possible failures include:

• Internal electrical failure

• Damaged sensing element

• Internal short

• Signal dropout

• Incorrect resistance

• Excessive wear

If the sensor is integrated into the throttle body or accelerator pedal, the complete assembly may need to be replaced.

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Damaged Wiring

Wiring problems are a common potential cause.

Inspect for:

• Broken wires

• Chafed insulation

• Melted insulation

• Pinched wiring

• Exposed conductors

• Heat damage

• Engine-movement damage

• Poor previous repairs

Pay particular attention to harness sections near the engine and exhaust.

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Open Circuit

An open circuit can prevent the ECM from receiving the expected F-circuit signal.

Possible causes include:

• Broken wire

• Disconnected connector

• Backed-out terminal

• Broken connector pin

• Failed splice

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Short to Ground

A short to ground can pull the F signal toward ground and interfere with sensor operation.

Possible causes include:

• Damaged insulation

• Chafed wiring

• Pinched harness

• Incorrect repair

• Connector damage

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Short to Power

A signal wire contacting a power circuit can produce an abnormal voltage.

Possible sources include:

• Battery voltage

• Ignition voltage

• Another powered circuit

Depending on the exact system, a short to power may also result in a more specific high-input code such as P2133.

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Corroded Electrical Connector

Corrosion can interfere with the F circuit.

Inspect for:

• Green corrosion

• White deposits

• Moisture

• Oxidized terminals

• Loose pins

• Damaged connector housing

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Loose or Backed-Out Terminal

A terminal may not maintain proper contact inside the connector.

Possible problems include:

• Poor terminal tension

• Bent terminal

• Backed-out pin

• Loose connector

• Damaged locking mechanism

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Poor Sensor Ground

The sensor requires a stable electrical ground.

A poor ground can cause:

• Incorrect signal

• Signal instability

• Circuit malfunction

• Incorrect sensor readings

Possible causes include:

• Corroded ground

• Loose ground

• Broken ground wire

• Poor ECM/PCM ground

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Reference-Voltage Problem

Many throttle and pedal position sensors use a regulated reference voltage.

A problem with this circuit can affect the sensor signal.

Possible causes include:

• Missing reference voltage

• Low reference voltage

• Shorted reference circuit

• Wiring fault

• Another sensor affecting a shared reference circuit

• ECM/PCM fault

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Faulty Electronic Throttle Body

If the F circuit is integrated into the throttle body, an internal fault can cause P2130.

Possible problems include:

• Internal position sensor failure

• Internal circuit failure

• Throttle actuator fault

• Internal wiring damage

• Throttle-position feedback failure

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Faulty Accelerator Pedal Assembly

If the F circuit is part of the accelerator pedal position system, the pedal assembly may be defective.

Possible problems include:

• Internal position sensor failure

• Internal wiring fault

• Damaged pedal electronics

• Poor electrical contact

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Throttle Plate Contamination

Carbon buildup can restrict throttle movement.

Possible symptoms include:

• Sticking throttle

• Rough idle

• Hesitation

• Slow throttle response

Carbon buildup should be considered when mechanical throttle operation is abnormal, although it does not automatically explain an electrical circuit malfunction.

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Mechanical Throttle Binding

A throttle plate or shaft that does not move freely can affect position feedback.

Possible causes include:

• Carbon deposits

• Debris

• Damaged throttle shaft

• Mechanical wear

• Throttle-body damage

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Low Battery or Charging-System Voltage

Electronic throttle systems depend on stable electrical power.

Possible causes include:

• Weak battery

• Alternator problem

• Loose battery terminals

• Poor charging-system connection

• Poor engine ground

If several unrelated electrical codes appear together, system voltage should be checked.

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Incorrect Previous Repairs

Previous wiring repairs can cause P2130 if:

• Wires are incorrectly connected.

• Splices are poor.

• Pins are installed incorrectly.

• Harnesses are pinched.

• Connectors are improperly fitted.

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Aftermarket Modifications

Potential sources include:

• Pedal controllers

• Throttle-response devices

• ECU tuning

• Modified wiring

• Engine swaps

• Aftermarket throttle components

Poorly installed modifications can interfere with the F circuit.

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Faulty ECM/PCM

A control-module fault is possible but less common.

The ECM/PCM should generally be considered only after the external circuit and components have been properly tested.

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Vehicles Commonly Affected by P2130

P2130 can occur on many OBD-II vehicles equipped with electronic throttle or accelerator pedal position systems.

Examples may include:

• Ford F-150

• Ford Explorer

• Ford Mustang

• Ford Focus

• Ford Ranger

• Chevrolet Silverado

• Chevrolet Tahoe

• Chevrolet Malibu

• Chevrolet Camaro

• GMC Sierra

• GMC Yukon

• Cadillac Escalade

• Dodge Charger

• Dodge Challenger

• Ram 1500

• Jeep Grand Cherokee

• Jeep Wrangler

• Chrysler Pacifica

• Toyota Camry

• Toyota Tundra

• Toyota Tacoma

• Honda Accord

• Honda Civic

• Honda CR-V

• Nissan Altima

• Nissan Pathfinder

• Nissan Titan

• BMW 3 Series

• BMW 5 Series

• Mercedes-Benz C-Class

• Mercedes-Benz E-Class

• Volkswagen Golf

• Volkswagen Passat

• Audi A4

• Audi A6

This list is not exhaustive.

P2130 can occur on any compatible vehicle when the ECM detects a malfunction in the relevant throttle/pedal position F circuit.

Important: The exact component, circuit location, wiring configuration, and diagnostic procedure vary by manufacturer.

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How Is P2130 Diagnosed?

P2130 should be diagnosed systematically rather than assuming that the throttle body or accelerator pedal is defective.

Check for Additional Trouble Codes

Perform a complete diagnostic scan.

Look for:

• P2130

• P2131

• P2132

• P2133

• P2134

• Other throttle-position codes

• Accelerator-pedal position codes

• Throttle actuator codes

• 5-volt reference codes

• Sensor circuit codes

• Battery-voltage codes

• Communication codes

Additional codes may identify the affected circuit.

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Check Freeze-Frame Data

Review the conditions present when P2130 was stored.

Useful information may include:

• Engine RPM

• Vehicle speed

• Engine load

• Battery voltage

• Accelerator pedal position

• Throttle position

• Coolant temperature

This may reveal whether the fault occurred during acceleration, cruising, deceleration, or another operating condition.

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Identify the F Circuit

Use the vehicle-specific wiring diagram to determine:

• Which component contains the F circuit

• F circuit signal wire

• Reference-voltage wire

• Sensor ground

• ECM/PCM terminal

• Expected voltage range

• Expected signal behavior

Do not assume the F circuit uses the same pin or component on another vehicle.

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Monitor Live Data

Use a capable scan tool to monitor the relevant position signals.

Operate the accelerator pedal slowly and observe:

• F circuit position

• Accelerator pedal position

• Throttle position

• Commanded throttle position

• Actual throttle position

• Related redundant signals

Look for:

• Missing data

• Abnormally fixed readings

• Sudden changes

• Incorrect signal progression

• Differences between related sensors

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Inspect the Accelerator Pedal Assembly

If the F circuit is associated with the accelerator pedal, inspect:

• Pedal movement

• Connector

• Wiring

• Terminals

• Position sensors

• Physical damage

The pedal should move smoothly without interference.

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Inspect the Electronic Throttle Body

If the F circuit is part of the throttle body, inspect:

• Connector

• Wiring

• Throttle plate

• Position sensors

• Actuator

• Internal electrical components

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Inspect the Wiring Harness

Look for:

• Broken wires

• Chafing

• Melted insulation

• Pinched wires

• Exposed conductors

• Poor splices

• Incorrect repairs

Pay particular attention to areas exposed to engine vibration and heat.

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Check Electrical Connectors

Inspect connectors for:

• Corrosion

• Water intrusion

• Bent pins

• Loose terminals

• Backed-out terminals

• Damaged locking mechanisms

• Heat damage

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Check Reference Voltage

Measure the reference voltage according to the manufacturer's diagnostic procedure.

Many systems use approximately 5 volts, but the exact specification must be verified.

If reference voltage is missing or abnormal, diagnose that circuit before replacing the sensor.

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Check Sensor Ground

Verify the sensor ground with the appropriate electrical test.

A poor ground can create an incorrect sensor signal even when the sensor itself is functioning.

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Check F Circuit Continuity

Test the F circuit for:

• Open circuits

• Excessive resistance

• Short to ground

• Short to power

• Short to another circuit

Use the manufacturer's specified resistance and continuity procedures.

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Perform Voltage-Drop Testing

Voltage-drop testing can identify excessive resistance in:

• Ground circuits

• Connector terminals

• Wiring

• Splices

• Power circuits

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Perform a Wiggle Test

If the fault is difficult to reproduce, gently move the relevant wiring harness and connectors while monitoring the F circuit data, following the manufacturer's diagnostic procedure.

If the signal changes unexpectedly, investigate the harness or connector.

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Test the Sensor With a Multimeter

Depending on the vehicle's diagnostic procedure, measure the F signal while operating the throttle or accelerator pedal.

The signal should change in the specified manner.

Look for:

• Missing signal

• Incorrect voltage

• Dead spots

• Sudden changes

• Abnormal resistance

• Unstable output

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Use an Oscilloscope When Necessary

An oscilloscope can reveal electrical problems that may not be visible with a basic multimeter.

It can help identify:

• Signal dropouts

• Electrical noise

• Spikes

• Dead spots

• Intermittent connections

• Irregular signal patterns

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Test the Electronic Throttle Body

If applicable, test:

• Power supply

• Ground

• Reference voltage

• F signal

• Other throttle position signals

• Actuator operation

Replace the throttle body only when testing confirms an internal fault.

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Test the Accelerator Pedal Position System

If applicable, test:

• Pedal position signals

• Reference voltage

• Ground

• Wiring

• Connector

• Signal progression

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Check Battery and Charging Voltage

Verify:

• Battery condition

• Battery terminals

• Alternator output

• Charging voltage

• Engine grounds

• Chassis grounds

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Check ECM/PCM Power and Grounds

Verify:

• Battery power

• Ignition power

• ECM/PCM grounds

• Sensor reference circuits

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Check for Aftermarket Modifications

Inspect for:

• Pedal controllers

• Throttle-response devices

• ECU tuning

• Modified wiring

• Engine swaps

• Non-standard throttle components

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How to Fix P2130

The appropriate repair depends on the result of the diagnostic tests.

Replace a Faulty Position Sensor

If testing confirms an internal sensor failure, replace the applicable sensor or assembly.

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Replace a Faulty Accelerator Pedal Assembly

If the F circuit is integrated into the accelerator pedal assembly and the internal sensor has failed, replace the pedal assembly when required.

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Replace a Faulty Electronic Throttle Body

If an internal throttle position sensor, actuator, or circuit fault is confirmed, replace the throttle body or applicable assembly.

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Repair Damaged Wiring

Repair or replace wiring affected by:

• Heat

• Chafing

• Vibration

• Corrosion

• Previous repairs

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Repair or Replace Electrical Connectors

Replace damaged connector housings or terminals and restore correct terminal tension.

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Repair Open Circuits

Locate broken wires, disconnected terminals, failed splices, or damaged connectors and restore circuit continuity.

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Repair Short Circuits

Locate and repair shorts to:

• Ground

• Battery voltage

• Other electrical circuits

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Repair Sensor Ground Problems

Repair loose, corroded, or damaged ground connections.

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Repair Reference-Voltage Problems

Repair the reference-voltage circuit if testing shows that it is missing or outside specification.

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Clean the Throttle Body

If carbon buildup is causing mechanical sticking, clean the throttle body according to the manufacturer's procedure.

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Correct Previous Repairs

Repair incorrect wiring, poor splices, and improperly installed connectors.

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Correct Aftermarket Modifications

Restore the original throttle-control configuration if a modification is responsible for the fault.

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Perform Required Relearn Procedures

Some vehicles may require:

• Throttle body relearn

• Accelerator pedal calibration

• Idle relearn

• Electronic throttle adaptation

Always follow the manufacturer-specific procedure.

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Repair or Replace the ECM/PCM

The ECM/PCM should only be considered after the F circuit, sensor, wiring, connectors, reference voltage, grounds, power supplies, and related components have been properly tested.

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What Happens If P2130 Is Ignored?

The vehicle may continue operating, but throttle-control problems can become more severe.

Possible consequences include:

• Reduced engine power

• Poor acceleration

• Limp mode

• Engine hesitation

• Rough running

• Engine stalling

• Poor fuel economy

• Cruise-control deactivation

• Additional throttle-control codes

• Increased emissions

Because the ECM may not be able to reliably monitor the throttle/pedal position F circuit, it may activate a fail-safe strategy.

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Can You Drive With P2130?

Driving with P2130 should be approached cautiously because the code involves the electronic throttle or accelerator pedal position system.

A short trip may be possible if:

• The engine runs smoothly.

• Throttle response remains predictable.

• There is no significant power loss.

• The vehicle is not stalling.

• The Check Engine Light is not flashing.

Avoid continued driving if you experience:

• Sudden power loss

• Severe hesitation

• Unpredictable throttle response

• Repeated stalling

• Reduced-power mode

• Flashing Check Engine Light

• Multiple warning messages

If accelerator or throttle response becomes unpredictable, the vehicle should be inspected before continued driving.

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Is P2130 a Serious Code?

P2130 is generally considered a moderate to potentially high-severity diagnostic trouble code because it involves an electronic throttle or accelerator pedal position circuit.

The vehicle may continue operating, but the ECM may no longer be able to reliably verify throttle or pedal position.

This can result in:

• Reduced engine power

• Limp mode

• Poor throttle response

• Cruise-control deactivation

• Engine hesitation

• Possible stalling

The actual severity depends on the vehicle and the behavior of the fault.

P2130 should be diagnosed promptly, especially if reduced engine power or unpredictable throttle response is present.

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How to Prevent P2130

Recommended practices include:

• Keep throttle-body and accelerator-pedal connectors clean and dry.

• Repair damaged wiring promptly.

• Keep wiring away from excessive heat.

• Secure wiring away from moving components.

• Maintain battery terminals.

• Maintain engine and chassis grounds.

• Address charging-system problems quickly.

• Keep the throttle body clean when appropriate.

• Avoid poorly installed throttle modifications.

• Use quality electrical repairs.

• Inspect wiring after major engine work.

• Use correct replacement components.

• Do not ignore recurring Check Engine Light warnings.

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P2130 vs. Related Codes

Code	General Description
P2130	Throttle/Pedal Position Sensor/Switch F Circuit Malfunction
P2131	Throttle/Pedal Position Sensor/Switch F Circuit Range/Performance
P2132	Throttle/Pedal Position Sensor/Switch F Circuit Low Input
P2133	Throttle/Pedal Position Sensor/Switch F Circuit High Input
P2134	Throttle/Pedal Position Sensor/Switch F Circuit Intermittent
P2135	Throttle Position Sensor A/B Voltage Correlation
P2136	Throttle/Pedal Position Sensor/Switch A/C Voltage Correlation
P2137	Throttle/Pedal Position Sensor/Switch B/C Voltage Correlation
P2138	Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
P2139	Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation
P2140	Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation

The key difference between the closely related F-circuit codes is:

• P2130 = F circuit malfunction

• P2131 = F circuit range/performance problem

• P2132 = F circuit low input

• P2133 = F circuit high input

• P2134 = F circuit intermittent

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Final Thoughts

The P2130 Throttle/Pedal Position Sensor/Switch "F" Circuit Malfunction diagnostic trouble code indicates that the ECM/PCM has detected a malfunction in the electrical circuit associated with the F throttle or accelerator pedal position signal.

Common causes include:

• Faulty throttle position sensor

• Faulty accelerator pedal position sensor

• Faulty accelerator pedal assembly

• Faulty electronic throttle body

• Open circuit

• Short to ground

• Short to power

• Damaged wiring

• Corroded connectors

• Loose or backed-out terminals

• Poor sensor ground

• Reference-voltage problems

• Low system voltage

• Throttle plate contamination or binding

• Incorrect previous repairs

• Aftermarket modifications

• ECM/PCM faults

The first step is to determine exactly what the F circuit represents on the specific vehicle.

A complete diagnostic scan should then be followed by live-data analysis, wiring and connector inspection, reference-voltage and ground testing, continuity checks, and sensor testing.

P2130 does not automatically mean that the throttle body or accelerator pedal needs to be replaced. Wiring faults, connector problems, open circuits, shorts, poor grounds, and reference-voltage issues can all produce a circuit malfunction.

Proper diagnosis is important because electronic throttle systems directly affect engine power and accelerator response. Identifying the actual cause rather than replacing parts based solely on the trouble code is the best way to restore reliable operation and prevent reduced-power or fail-safe mode.