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Code P1793

Quick reference

P1793 at a glance

Plain-language meaning
This means the car's computer turned off a part of the engine to prevent it from getting too hot and causing damage.
Urgency
High – This issue can lead to severe engine damage if not addressed promptly.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Coolant system pressure tester

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

Laymans terms

This means the car's computer turned off a part of the engine to prevent it from getting too hot and causing damage.

Explanation

The Electronic Throttle Control (ETC) system has detected a temperature that is too high, and as a protective measure, it has cut off certain functions to prevent damage.

Technical description

The P1793 code is triggered when the vehicle's Electronic Throttle Control (ETC) system detects an overtemperature condition that could potentially harm the engine or related components. As a safety measure, the ETC system limits or cuts off certain functionalities to prevent overheating damage.

Symptoms

• Engine performance issues

• Warning light on dashboard

• Reduced power or limp mode

Common Causes

• Faulty temperature sensor

• Cooling system malfunction

• Blocked radiator or coolant passages

Glossary

ETC: Electronic Throttle Control

OBD-II: On-Board Diagnostics, Second Generation

Diagnosis steps

• Check for any other related codes.

• Inspect the cooling system for leaks or blockages.

• Test the temperature sensor for proper operation.

Repair procedures

• Replace faulty temperature sensor.

• Repair or replace damaged cooling system components.

• Flush and refill the coolant system.

Tools required

• OBD-II scanner

• Multimeter

• Coolant system pressure tester

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Dodge Ram 1500

• Jeep Grand Cherokee

• Chrysler 300

Preventive measures

• Regularly check coolant levels.

• Ensure radiator and cooling fans are functioning properly.

• Perform routine engine maintenance.

Error code type

Engine Performance

User experience recommendations

• Do not ignore the warning light; seek professional help.

• Avoid driving the vehicle until the issue is resolved.

• Regular maintenance can prevent such issues.

Warranty information

Check with the vehicle manufacturer; some components may be covered under warranty.

Historical data

This code has been associated with vehicles that have cooling system issues or faulty temperature sensors.

Urgency level

High – This issue can lead to severe engine damage if not addressed promptly.

Testing conditions

• Engine at operating temperature

• Vehicle in a safe, stationary position

Component location

The ETC system is typically located near the throttle body on the engine.

FAQs

Q: Can I drive my car with code P1793?
A: It's not recommended to drive with this code active as it can lead to engine damage.

Q: What happens if I ignore this code?
A: Ignoring this code may result in severe engine damage and costly repairs.

Optional diagnostic gear

Tools that may help diagnose P1793

FOXWELL NT301 diagnostic tool illustration

Budget · Enhanced code reader

FOXWELL NT301

A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.

A dependable first-pass scanner for verifying the code and checking live data or readiness monitors.

View on Amazon
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 voltage, continuity, and basic electrical checks while narrowing down the fault.

View on Amazon
TEKTON 3/8" Socket and Ratchet Set diagnostic tool illustration

Universal · Socket set

TEKTON 3/8" Socket and Ratchet Set

A practical metric and SAE socket set for many diagnostic teardowns and component replacements.

Useful for common under-hood access and removal work during diagnosis or repair.

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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