Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
3Zr-Fae Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
CHECK WHETHER DTC OUTPUT RECURS
DTC P0604 Internal Control Module Random Access Memory (RAM) Error |
DTC P0606 ECM / PCM Processor |
DTC P060A Internal Control Module Monitoring Processor Performance |
DTC P060D Internal Control Module Accelerator Pedal Position Performance |
DTC P060E Internal Control Module Throttle Position Performance |
DTC P0657 Actuator Supply Voltage Circuit / Open |
DTC P1607 Cruise Control Input Processor |
DESCRIPTION
The ECM continuously monitors its internal memory status, internal circuits and output signals transmitted to the throttle actuator. This self-check ensures that the ECM is functioning properly. If any malfunction is detected, the ECM stores the appropriate DTC and illuminates the MIL.The ECM memory status is diagnosed by internal "mirroring" of the main CPU and sub CPU to detect Random Access Memory (RAM) errors. The 2 CPUs also perform continuous mutual monitoring. The ECM illuminates the MIL and stores a DTC if: 1) outputs from the 2 CPUs are different or deviate from the standard, 2) the signals sent to the throttle actuator deviate from the standard, 3) a malfunction is detected in the throttle actuator supply voltage, or 4) any other ECM malfunction is detected.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0604 P0606 P060A P060D P060E P0657 P1607 | An ECM internal error (1 trip detection logic). | ECM |
INSPECTION PROCEDURE
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.| 1.CHECK WHETHER DTC OUTPUT RECURS |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the DTC.
| Result | Proceed to |
| DTC P0604, P0606, P060A, P060D, P060E P0657 and/or P1607 are output | A |
| DTC is not output | B |
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| A | ||
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