P0606 2009 Toyota Prius Code - ECM Processor Error
Quick Answer
The Engine Control Module (ECM) continuously monitors its internal memory status, internal circuits, and output signals to the throttle actuator. Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) Harness power supply circuit is open or shorted, Engine Control Module (ECM) Programming. 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
- P0606 2009 Toyota Prius indicates ECM Processor Error.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) Harness power supply circuit is open or shorted, Engine Control Module (ECM) Programming.
- 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 P0606 2009 Toyota Prius Description
The ECM memory status is diagnosed by internal mirroring of the main CPU and the sub CPU to detect Random Access Memory (RAM) errors. The two CPUs also perform continuous mutual monitoring. The ECM illuminates the MIL and sets a DTC if: 1) outputs from the two CPUs are different or deviate from the standards, 2) the signals sent to the throttle actuator deviate from the standards, 3) a malfunction is found in the throttle actuator supply voltage, and 4) any other ECM malfunction is found.
What are the Possible Causes of the DTC P0606 2009 Toyota Prius?
- Faulty Engine Control Module (ECM)
- Engine Control Module (ECM) Harness power supply circuit is open or shorted
- Engine Control Module (ECM) Programming
How to Fix the DTC P0606 2009 Toyota Prius?
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 P0606 2009 Toyota Prius 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 P0606 2009 Toyota Prius Code
1. What does the OBDII code P0606 mean for a 2009 Toyota Prius?
The OBDII code P0606 for a 2009 Toyota Prius indicates an ECM Processor Error, signaling a malfunction in the Engine Control Module.
2. What are the common symptoms of an ECM Processor Error (P0606) in a 2009 Toyota Prius?
Common symptoms of an ECM Processor Error (P0606) in a 2009 Toyota Prius may include engine stalling, rough idling, poor acceleration, and issues with starting the vehicle.
3. What are the possible causes of the ECM Processor Error (P0606) in a 2009 Toyota Prius?
Possible causes of the ECM Processor Error (P0606) in a 2009 Toyota Prius can include a faulty ECM, damaged wiring or connectors, software issues, or a disrupted communication network.
4. How can I diagnose the ECM Processor Error (P0606) in my 2009 Toyota Prius?
Diagnosing the ECM Processor Error (P0606) in a 2009 Toyota Prius typically involves using an OBDII scanner to retrieve the trouble code, followed by inspecting the ECM, wiring, and connectors for any visible damage.
5. Can I still drive my 2009 Toyota Prius with the ECM Processor Error (P0606) code?
It is not recommended to drive a 2009 Toyota Prius with the ECM Processor Error (P0606) code, as it can lead to further damage and potential safety hazards. It's best to address the issue promptly.
6. How can I repair the ECM Processor Error (P0606) in my 2009 Toyota Prius?
Repairing the ECM Processor Error (P0606) in a 2009 Toyota Prius may involve replacing the ECM, repairing damaged wiring or connectors, updating software, or addressing any issues affecting the communication network.
7. Is resetting the ECM an effective solution for the P0606 code in a 2009 Toyota Prius?
Resetting the ECM may temporarily clear the P0606 code, but if the underlying issue causing the code is not resolved, the code is likely to reappear. It's essential to diagnose and fix the root cause.
8. Can a DIY enthusiast fix the ECM Processor Error (P0606) in a 2009 Toyota Prius?
While some basic inspections like checking wiring and connectors can be done by a DIY enthusiast, diagnosing and repairing the ECM Processor Error (P0606) may require specialized tools and expertise best handled by a professional mechanic.
9. How much does it typically cost to repair the ECM Processor Error (P0606) in a 2009 Toyota Prius?
The cost of repairing the ECM Processor Error (P0606) in a 2009 Toyota Prius can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
10. Will the check engine light go off on its own after fixing the ECM Processor Error (P0606) in a 2009 Toyota Prius?
After fixing the ECM Processor Error (P0606) in a 2009 Toyota Prius, the check engine light may not turn off immediately. It may require driving a few cycles to allow the system to retest before the light resets.
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