P0505 2000 Toyota Echo 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 2000 Toyota Echo 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.
Code P0505 2000 Toyota Echo 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 2000 Toyota Echo?
- 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 2000 Toyota Echo?
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 P0505 2000 Toyota Echo 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 2000 Toyota Echo Code
1. What is OBDII code P0505 for a 2000 Toyota Echo?
- OBDII code P0505 indicates an Idle Control System Malfunction in a 2000 Toyota Echo.
2. What are the common symptoms of OBDII code P0505 in a 2000 Toyota Echo?
- Common symptoms of OBDII code P0505 in a 2000 Toyota Echo include high or erratic idle speed, stalling at idle, and potential difficulty starting the vehicle.
3. What are the possible causes of OBDII code P0505 in a 2000 Toyota Echo?
- Potential causes of OBDII code P0505 in a 2000 Toyota Echo include a faulty idle air control valve (IACV), vacuum leaks, dirty throttle body, or issues with the engine's computer.
4. How can I diagnose OBDII code P0505 in my 2000 Toyota Echo?
- To diagnose OBDII code P0505, you can start by checking for vacuum leaks, inspecting the idle air control valve for proper operation, and cleaning the throttle body. If the issue persists, further diagnostics may be required.
5. Can I still drive my 2000 Toyota Echo with OBDII code P0505?
- It is not recommended to drive your 2000 Toyota Echo with OBDII code P0505, as the vehicle may experience stalling or other drivability issues. It's best to address the underlying problem as soon as possible.
6. What are some repair tips for OBDII code P0505 in a 2000 Toyota Echo?
- Repair tips for OBDII code P0505 in a 2000 Toyota Echo include cleaning the throttle body, checking for vacuum leaks, testing the idle air control valve, and resetting the engine's computer after repairs are made.
7. Is it easy to fix OBDII code P0505 in a 2000 Toyota Echo myself?
- Depending on your mechanical skills, fixing OBDII code P0505 in a 2000 Toyota Echo can range from easy (cleaning the throttle body) to more complex (replacing the idle air control valve). It's recommended to consult a professional if you're unsure.
8. How much does it cost to repair OBDII code P0505 in a 2000 Toyota Echo?
- The cost to repair OBDII code P0505 in a 2000 Toyota Echo can vary based on the underlying issue. Simple fixes like cleaning the throttle body may cost less, while replacing the idle air control valve or addressing other major issues can be more expensive.
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