AutoCodesToyota – P0505 2001 Toyota Camry

P0505 2001 Toyota Camry Code - Idle Control System Malfunction

Quick Answer

The rotary solenoid type Idle Air Control (IAC) valve is located on the throttle body and intake air bypassing the throttle valve is directed to the IAC valve through a passage. Common causes include Idle Air Control (IAC) Valve is stuck or closed, Faulty Idle Air Control Valve, Idle Air Control Valve harness is open or shorted. 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
P0505 2001 Toyota Camry indicates Idle Control System Malfunction.
Common causes
Common causes include Idle Air Control (IAC) Valve is stuck or closed, Faulty Idle Air Control Valve, Idle Air Control Valve harness is open or shorted.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 15,061
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 27, 2020
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0505 2001 Toyota Camry Description

The rotary solenoid type Idle Air Control (IAC) valve is located on the throttle body and intake air bypassing the throttle valve is directed to the IAC valve through a passage. In this way the intake air volume bypassing the throttle valve is regulated, controlling the engine speed. The Engine Control Module (ECM) operates only the IAC valve to perform idle-up and provide feedback for the target idling speed.
The ECM regulates the idle speed by opening and closing the throttle valve using the ETCS. The ECM concludes that the idle speed control ECM function is malfunctioning and set the Diagnostic Trouble Code (DTC) if:
1. The actual idle RPM varies more than the specified amount five times or more during a drive cycle
2. The learning value of the idle speed control remains at the maximum or minimum five times or more during a drive cycle.

Example: If the actual idle RPM varies from the target idle RPM by more than 200* rpm five times during a drive cycle, the ECM will turn on the MIL and will set a DTC.
OBDII Code P0505 2001 Toyota Camry - Idle Control System Malfunction - AutoCodes.com
P0505 2001 Toyota Camry Code - Idle Control System Malfunction

What are the Possible Causes of the DTC P0505 2001 Toyota Camry?

  • Idle Air Control (IAC) Valve is stuck or closed
  • Faulty Idle Air Control Valve
  • Idle Air Control Valve harness is open or shorted
  • Idle Air Control Valve circuit poor electrical connection
  • Air Induction System (Intake leak)
  • PCV hose connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0505 2001 Toyota Camry?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0505 2001 Toyota Camry 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 P0505 2001 Toyota Camry code?

Need more information on how to fix the P0505 2001 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0505 2001 Toyota Camry 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 P0505 2001 Toyota Camry Code

1. What does the OBDII code P0505 for a 2001 Toyota Camry indicate?

The P0505 code signals an Idle Control System Malfunction in the 2001 Toyota Camry.

2. What are some common symptoms of a P0505 code in a 2001 Toyota Camry?

Common symptoms include high or erratic idling, stalling at idle, and possible difficulty starting the engine.

3. What are the potential causes of a P0505 code in a 2001 Toyota Camry?

Causes can range from a faulty idle air control valve (IACV), a dirty throttle body, vacuum leaks, or issues with the engine's computer system.

4. How can I diagnose a P0505 code in my 2001 Toyota Camry?

Diagnosing the issue involves checking the IACV, inspecting the throttle body for dirt or carbon buildup, looking for vacuum leaks, and scanning the engine computer for any related error codes.

5. What are some repair tips for addressing a P0505 code in a 2001 Toyota Camry?

Try cleaning the throttle body and IACV, checking and replacing any damaged vacuum hoses, and resetting the engine computer after making repairs.

6. Can a P0505 code in a 2001 Toyota Camry cause any further damage if left unaddressed?

Continuing to drive with a P0505 code may lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.

7. Is it safe to drive my 2001 Toyota Camry with a P0505 code?

While the vehicle may still be operable with a P0505 code, it is recommended to address the issue promptly to avoid any further complications.

8. How much does it typically cost to repair a P0505 code in a 2001 Toyota Camry?

Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 to $500 for parts and labor.

9. Can a DIY enthusiast fix a P0505 code in a 2001 Toyota Camry?

If you have some automotive repair experience and the necessary tools, you may be able to address a P0505 code yourself by following repair guides or tutorials.

10. How long does it take to repair a P0505 code in a 2001 Toyota Camry?

The repair time can vary based on the specific cause of the issue, but most fixes for a P0505 code can be completed within a few hours to a day.

Discuss the causes and fixes for P0505 2001 Toyota Camry OBDII Code

  • i try delete the code p0505 but its pop again

  • What you have done to repair the problem? if there is still a problem the the light wont erase. If you haven't done anything, then you may have to replace the throttle body.

  • My engine light came and we checked the code, shows the p0505 code. Haven't taken it in yet but when I turned the car on tonight the idle went high and was fluctuating up and down. Plus when I took my foot off the pedal at 30 mph it stayed there, did not decrease....help!!!

  • Looks the Idle Air Control (IAC) valve is getting stuck. Check the video just added it above.

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