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Code P2137

Quick reference

P2137 at a glance

Plain-language meaning
This code means that the car's computer is confused because it's getting different signals from two parts that help control the car's speed. It's like if you asked two friends for directions and they told you to go different ways.
Urgency
Moderate – It is important to address this issue to prevent further engine performance problems.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer is confused because it's getting different signals from two parts that help control the car's speed. It's like if you asked two friends for directions and they told you to go different ways.

Explanation

The Engine Control Module (ECM) detects a mismatch in the voltage signals from the throttle position sensors B and C.

Technical description

The P2137 code is triggered when the ECM detects that the voltage readings from the throttle position sensors B and C do not correlate as expected. These sensors provide data to the ECM about the position of the throttle, which is crucial for controlling the engine's air intake and, consequently, its speed and power output.

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Unresponsive throttle

Common Causes

• Faulty throttle position sensor

• Wiring issues such as open or short circuits

• Faulty ECM

Glossary

ECM: Engine Control Module

OBD-II: On-Board Diagnostics II

Diagnosis steps

• Use an OBD-II scanner to confirm the code

• Visually inspect the wiring and connectors for damage

• Test the throttle position sensors using a multimeter

Repair procedures

• Replace the faulty throttle position sensor

• Repair or replace damaged wiring

• Reprogram or replace the ECM if necessary

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regularly inspect and maintain throttle components

• Ensure wiring connections are secure

• Keep the throttle body clean

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the Check Engine Light

• Avoid driving at high speeds until the issue is resolved

Warranty information

Check with your vehicle manufacturer for specific warranty coverage on throttle components.

Historical data

This code has been associated with issues in vehicles using electronic throttle control systems, which have become more common in modern cars.

Urgency level

Moderate – It is important to address this issue to prevent further engine performance problems.

Testing conditions

• Engine running

• Throttle pedal movement

Component location

The throttle position sensors are typically located on the throttle body, which is connected to the intake manifold.

FAQs

Q: Can I drive my car with a P2137 code?
A: It's not recommended as it can lead to reduced engine performance and unsafe driving conditions.

Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.

Optional diagnostic gear

Tools that may help diagnose P2137

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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