DTC Diagnosis Procedure
1.
CHECK DTC PRIORITY
If DTC P0506 is displayed with other DTC, first perform the trouble diagnosis for the other DTC.
Is applicable DTC detected?
Perform diagnosis of applicable. Refer to
DTC Index
.
.
2.
CHECK INTAKE AIR LEAK
Start engine and let it idle.
Listen for an intake air leak after the mass air flow sensor.
Is intake air leak detected?
Discover air leak location and repair.
Replace ECM. Refer to Removal & Installation
ECM : Removal & Installation
.
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Perform diagnosis of applicable. Refer to DTC Index
.
.Discover air leak location and repair.Replace ECM. Refer to Removal & InstallationECM : Removal & Installation.