P0657 2008 TOYOTA PRIUS Code - Actuator Supply Voltage Circuit Open
|P0657 2008 TOYOTA PRIUS code possible causes
- Faulty Engine Control Module (ECM)
- Engine Control Module harness is open or shorted
- Engine Control Module circuit poor electrical connection
- Engine Control Module Programming update
|How do I fix the P0657 2008 TOYOTA PRIUS code?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
|P0657 2008 TOYOTA PRIUS code tech notesCheck the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the ECM.
|Cost of diagnosing the P0657 2008 TOYOTA PRIUS code
Labor: 1.0The cost of diagnosing the P0657 2008 TOYOTA PRIUS code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
|When is the P0657 2008 TOYOTA PRIUS code detected?Indicates the Engine Control Module (ECM) has experienced an internal memory fault.
|What are P0657 2008 TOYOTA PRIUS code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
|P0657 2008 TOYOTA PRIUS code descriptionThe Engine Control Module (ECM) continuously monitors its internal memory status, internal circuits, and output signals to the throttle actuator. This self−check insures that the ECM is functioning properly. If any malfunction is detected, the ECM will set the code and illuminate the engine light.
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.
|Need more information with the P0657 2008 TOYOTA PRIUS code?Need more information on how to fix the P0657 2008 TOYOTA PRIUS code? Get Access to Factory Service Manuals
|Need help with a P0657 2008 TOYOTA PRIUS code?Get the P0657 2008 Toyota Prius code diagnosed by a professional: Find a repair shop in your area
|P0657 2008 TOYOTA PRIUS code commentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0657 2008 Toyota Prius code? Have you replaced any parts?
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