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Code P3192

Quick reference

P3192 at a glance

Plain-language meaning
This code means there's a problem with the part of the car that controls how much air goes into the engine. It's like the engine isn't getting enough air to breathe properly.
Urgency
Moderate – While the vehicle may still run, performance issues could worsen if not addressed.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

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

Laymans terms

This code means there's a problem with the part of the car that controls how much air goes into the engine. It's like the engine isn't getting enough air to breathe properly.

Explanation

The throttle actuator control motor is responsible for regulating the amount of air entering the engine. A 'circuit low' condition indicates that the electrical signal to this motor is lower than expected, which could affect engine performance.

Technical description

The P3192 code is triggered when the Engine Control Module (ECM) detects a low voltage condition in the throttle actuator control motor circuit for Bank 2. This could be due to a wiring issue, a faulty motor, or a problem with the ECM itself.

Symptoms

• Check Engine Light illuminated

• Poor engine performance

• Reduced throttle response

Common Causes

• Faulty throttle actuator control motor

• Damaged or corroded wiring/connectors

• Faulty Engine Control Module (ECM)

Glossary

Throttle Actuator: A device that controls the opening and closing of the throttle valve.

ECM: Engine Control Module, the computer that controls engine functions.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for damage or corrosion.

• Test the throttle actuator control motor for proper operation.

Repair procedures

• Repair or replace damaged wiring/connectors.

• Replace the throttle actuator control motor if faulty.

• Reprogram or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$200 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Lexus RX350

• Nissan Altima

Preventive measures

• Regularly inspect and maintain the throttle body.

• Ensure electrical connections are clean and secure.

• Perform regular engine diagnostics.

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light.

• Seek professional diagnostic help if unsure.

• Regular maintenance can prevent such issues.

Warranty information

Check with your vehicle's manufacturer for specific warranty coverage related to the throttle system.

Historical data

This code has been associated with throttle control issues in vehicles equipped with electronic throttle control systems, particularly in models from the early 2000s onward.

Urgency level

Moderate – While the vehicle may still run, performance issues could worsen if not addressed.

Testing conditions

• Engine running

• Use of a diagnostic scanner

Component location

The throttle actuator control motor is typically located on the throttle body, which is mounted on the intake manifold of the engine.

FAQs

Q: Can I drive my car with a P3192 code?
A: While you may be able to drive the car, it's not recommended as it can lead to further engine performance issues.

Q: How do I clear a P3192 code?
A: You can clear the code with an OBD-II scanner, but it's important to fix the underlying issue first.

Optional diagnostic gear

Tools that may help diagnose P3192

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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