Control Module Performance
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P0607 TOYOTA Possible Causes
- Faulty Engine Control Module (ECM)
- Engine Control Module (ECM) Harness power supply circuit is open or shorted
- Engine Control Module (ECM) Programming
How do I fix code P0607 TOYOTA?
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.
Tech Notes
- Check the Engine Control Module (ECM) fuse, if the fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replace the ECM.
- There is a factory service bulletin for the following Toyota models:
- 2005 Toyota Corolla
- 2006 Toyota Corolla
- 2007 Toyota Corolla
- 2005 Toyota Matrix
- 2006 Toyota Matrix
- 2007 Toyota Matrix
- 2005-2007 Toyota Corolla, Matrix Factory Service Bulletin OBDII Code P0607
Cost of diagnosing the P0607 TOYOTA code
The cost of diagnosing the P0607 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
Indicates the ECM has experienced an internal memory fault.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine may not start
P0607 TOYOTA Description
The 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.