Engine-CodesDodge – P1133 Dodge

P1133 Dodge Code - ECT Sensor Circuit Interm Low Voltage

Quick Answer

The P1133 diagnostic trouble code (DTC) for Dodge vehicles refers to the Engine Coolant Temperature (ECT) sensor circuit having intermittent low voltage. Common causes include Faulty ECT sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1133 Dodge indicates ECT Sensor Circuit Interm Low Voltage.
Common causes
Common causes include Faulty ECT sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 07, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1133 Dodge Description

The P1133 diagnostic trouble code (DTC) for Dodge vehicles refers to the Engine Coolant Temperature (ECT) sensor circuit having intermittent low voltage. The ECT sensor is a crucial component in the engine management system, as it measures the temperature of the coolant and sends this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery, ignition timing, and other parameters to ensure optimal engine performance and efficiency.

OBDII Code P1133 Dodge - ECT Sensor Circuit Interm Low Voltage
P1133 Dodge Code - ECT Sensor Circuit Interm Low Voltage

Common Causes of P1133 Dodge

  1. Faulty ECT sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or poor connections in the sensor circuit
  4. ECM malfunction
  5. Coolant leaks affecting sensor performance

Symptoms of P1133 Dodge

  1. Check engine light illuminated
  2. Decreased fuel efficiency
  3. Rough idling or stalling
  4. Engine overheating
  5. Poor engine performance

How to Fix P1133 Dodge

  1. Use a scan tool to verify the P1133 code and check freeze frame data for additional clues.
  2. Inspect the ECT sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the ECT sensor's resistance and voltage output to determine if it is functioning correctly.
  4. Replace the ECT sensor if it is found to be faulty, and repair or replace any damaged wiring or connectors.
  5. Clear the code and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1133 Dodge

The typical repair costs for addressing a P1133 code can vary depending on the specific cause of the issue. In general, replacing an ECT sensor can cost between $50 to $150, while addressing wiring or connector issues may add to the total cost. Labor rates at auto repair shops can range from $80 to $150 per hour, so the total cost of repair can vary based on the amount of time required for diagnosis and replacement. It's recommended to consult with a qualified mechanic for a more precise estimate based on the vehicle's make and model, as well as the extent of the repair needed.

Need more information about the P1133 Dodge code?

Need more information on how to fix the P1133 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1133 Dodge code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1133 Dodge Code

No Frequently Asked Questions about P1133 Dodge Code found.

Discuss the causes and fixes for P1133 Dodge OBDII Code

Code P1133 Dodge comments

No comments found for this page.