Code No. P0605: Read Only Memory (FLASH ROM) Malfunction
FUNCTION
- The engine-ECU reads information from flash ROM.
- The engine-ECU detects checksum errors.
TROUBLE JUDGMENT
Check Condition
- Ignition switch is in "ON" position.
- In each inspection target area of a flash ROM, a checksum mismatch is detected three
times consecutively.
FAIL-SAFE AND BACKUP FUNCTION
- The rail pressure is controlled in the range between 50 and 100 MPa.
- The fuel injection amount is restricted (Output restriction).
- The open angle of the accelerator pedal is restricted.
- The throttle valve is closed (Fixed opening degree).
- The EGR control is stopped (fully closed).
- The DPF regeneration is prohibited.
- The AS&G control is prohibited.
PROBABLE CAUSE
- Failed engine-ECU
DIAGNOSIS PROCEDURE |
STEP 1. M.U.T.-III diagnosis code |
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Q.
Is the diagnosis code set?
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Replace the engine-ECU. |
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Intermittent malfunction (Refer to GROUP 00 -
How to Use Troubleshooting/Inspection
Service Points -
How to Cope with Intermittent Malfunctions ). |
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