P0505 2010 Toyota Camry Code - Idle Air Control System
Quick Answer
The idle speed is controlled by the Electronic Throttle Control System (ETCS). Common causes include Dirty Throttle Body, Faulty Electronic Throttle Control System (ETCS) (Throttle body), Electronic Throttle Control System 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 2010 Toyota Camry indicates Idle Air Control System.
- Common causes
- Common causes include Dirty Throttle Body, Faulty Electronic Throttle Control System (ETCS) (Throttle body), Electronic Throttle Control System 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.
Code P0505 2010 Toyota Camry Description
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.
What are the Possible Causes of the DTC P0505 2010 Toyota Camry?
- Dirty Throttle Body
- Faulty Electronic Throttle Control System (ETCS) (Throttle body)
- Electronic Throttle Control System harness is open or shorted
- Electronic Throttle Control System circuit poor electrical connection
- Air Induction System (Intake leak)
- PCV hose connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0505 2010 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
2010 Toyota Camry Factory Service Bulletin OBDII Code P0505
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0505 2010 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.
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Frequently Asked Questions about P0505 2010 Toyota Camry Code
1. What does the OBDII code P0505 mean on a 2010 Toyota Camry?
P0505 indicates a malfunction in the Idle Air Control (IAC) system, which is responsible for maintaining a stable engine idle speed.
2. What are the common symptoms of code P0505 on a 2010 Toyota Camry?
Symptoms include rough idle, stalling, fluctuating idle speed, or an illuminated check engine light.
3. What causes the P0505 code to appear on a 2010 Toyota Camry?
Common causes include a dirty or faulty throttle body, a malfunctioning Idle Air Control (IAC) valve, vacuum leaks, or wiring issues in the IAC circuit.
4. How do I diagnose the P0505 code on my Toyota Camry?
Inspect the throttle body for carbon buildup, check for vacuum leaks, test the IAC valve for proper operation, and inspect electrical connections in the IAC system.
5. Can a dirty throttle body trigger the P0505 code?
Yes, carbon buildup on the throttle body can restrict airflow and cause the IAC system to malfunction, leading to the P0505 code.
6. How do I fix the P0505 code on a 2010 Toyota Camry?
Clean the throttle body, check and repair any vacuum leaks, replace the IAC valve if faulty, and inspect the wiring and connectors for damage.
7. Is it safe to drive with the P0505 code on a Toyota Camry?
While it may be safe to drive, you could experience poor engine performance, stalling, or difficulty maintaining idle, which could pose safety risks.
8. How much does it cost to fix the P0505 code on a 2010 Toyota Camry?
The cost depends on the cause; cleaning the throttle body is inexpensive, while replacing the IAC valve may cost $150–$400 including labor.
9. Can a vacuum leak cause the P0505 code?
Yes, a vacuum leak can disrupt the IAC system’s ability to maintain a stable idle, triggering the P0505 code.
10. Do I need to replace the IAC valve to fix the P0505 code?
Not always. Start by cleaning the throttle body and checking for vacuum leaks. Replace the IAC valve only if it’s confirmed to be faulty.
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