ENGINE (DIAGNOSTICS)(H4DOTC DIESEL) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0606 MICRO-COMPUTER (CPU FAILURE)

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

• Poor driving performance

• Engine stalls.

• Failure of engine to start

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode and Inspection Mode .

STEPCHECKYESNO

1.CHECK FOR ANY OTHER DTC ON DISPLAY.

Are DTCs other than P0606 and P1607 displayed?

Check the appropriate DTC using the “List of Diagnostic Trouble Code (DTC)”.

2.CHECK DTC.

1) Clear the memory using the Subaru Select Monitor or general scan tool.

NOTE:

For detailed procedures, refer to “Clear Memory Mode”.

2) Perform the “Inspection Mode” to check DTC.

Is the same DTC as current diagnosis output?

Replace the ECM.

Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.