AutoCodes – Lexus – P0205 Lexus

P0205 Lexus Code - Injector Circuit Open Cylinder 5

Quick Answer

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. Common causes include Faulty fuel injector 5, Fuel Injector 5 harness is open or shorted, Fuel injector 5 circuit poor electrical connection. 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: P0205 Lexus indicates Injector Circuit Open Cylinder 5.
Common causes: Common causes include Faulty fuel injector 5, Fuel Injector 5 harness is open or shorted, Fuel injector 5 circuit poor electrical connection.
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.

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Code Popularity 5,468

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0205 Lexus Description

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The ECM will trigger the P0205 code when the resistance or voltage drop at the injector 5 is out of specifications.

OBDII Code P0205 Lexus - Injector Circuit Open Cylinder 5 - AutoCodes.com — P0205 Lexus Code - Injector Circuit Open Cylinder 5

What does this mean?

What are the Possible Causes of the DTC P0205 Lexus?

Faulty fuel injector 5
Fuel Injector 5 harness is open or shorted
Fuel injector 5 circuit poor electrical connection

How to Fix the DTC P0205 Lexus?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0205 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0205 Lexus code?

Need more information on how to fix the P0205 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0205 Lexus Code

1. What does the OBDII code P0205 mean on a Lexus?

P0205 indicates an open or malfunctioning injector circuit in cylinder 5, meaning the engine control module (ECM) is not detecting proper operation from that injector.

2. What are the common symptoms of code P0205 in a Lexus?

Common symptoms include rough idling, misfires, reduced engine performance, poor fuel economy, and possible illumination of the check engine light.

3. What causes code P0205 in a Lexus?

Possible causes include a faulty fuel injector, damaged injector wiring or connectors, a malfunctioning ECM, or electrical issues such as short circuits or open circuits.

4. Can I drive my Lexus with a P0205 code?

While the vehicle may still run, driving with a P0205 code is not recommended as it can lead to engine misfires, increased emissions, and potential damage to other components.

5. How do I diagnose code P0205 on a Lexus?

Start by inspecting the wiring and connectors for cylinder 5's fuel injector, then test the injector's resistance and operation with a multimeter or injector tester. If no issues are found, check the ECM for faults.

6. How can I fix a P0205 code in my Lexus?

Repairs may involve replacing the faulty fuel injector, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the ECM if needed.

7. How much does it cost to fix a P0205 code on a Lexus?

Costs vary depending on the issue. Replacing a fuel injector can cost $150â€“$350, while wiring repairs may cost $50â€“$200. ECM replacements can be significantly more expensive.

8. Can a dirty fuel injector cause a P0205 code in a Lexus?

Yes, a clogged or dirty fuel injector can restrict fuel flow, leading to improper operation and triggering the P0205 code.

9. Will clearing the P0205 code fix the issue in a Lexus?

No, clearing the code will only reset the check engine light temporarily. The underlying issue with the injector circuit must be resolved to prevent the code from returning.

10. Does a P0205 code always mean the fuel injector is bad?

No, while a faulty fuel injector is a common cause, the issue could also stem from wiring problems, connector damage, or a malfunctioning ECM. Proper diagnosis is essential.