2005 Toyota Corona Repair Question
2005 Toyota Corolla Stalling engine
2005 Toyota Corona 4 cyl Front Wheel Drive Automatic 113000 miles
The wife's car is stalling as she drives down the road...tops out at 10 miles an hour...her dad is a mechanic, suggested taking the negative battery terminal off to reset something (I didn't talk to him). This worked temorarily...It coninues to do it every other day or so...Autozone did a diagnostic on it and came up with a "P0606" which was a "computer failure". I'm not getting much luck finding it in forums etc...what do you think...and what do you guess replacement would cost?
DTC P0601, P0604, P0606, P0607, P0657: INTERNAL CONTROL MODULE MEMORY CHECK SUM ERROR, RANDOM ACCESS MEMORY (RAM) ERROR, ECM/PCM PROCESSOR, CONTROL MODULE PERFORMANCE & ACTUATOR SUPPLY VOLTAGE CIRCUIT/OPEN
The ECM continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. This self-check insures that the ECM is functioning properly. If any malfunction is detected, the ECM sets the appropriate DTC and illuminates the MIL.
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
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