VR30DDTT engine

If DTC P26AB is displayed with DTC P0300, P0301, P0302, P0303, P0304, P0305 or P0306, first perform the trouble diagnosis for DTC P0300, P0301, P0302, P0303, P0304, P0305 or P0306.

Is applicable DTC detected?

YES

Perform diagnosis of applicable. Refer to DTC Index . (For turbo high pressure model) or Refer to DTC Index . (For turbo low pressure model).

NO

GO TO 2.

Check the engine coolant temperature sensor 1. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 3.

NO

Replace engine coolant temperature sensor 1. Refer to RADIATOR : Exploded View .

Check the multi-way control valve. Refer to Component Inspection .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace multi-way control valve. Refer to MULTI-WAY CONTROL VALVE : Removal & Installation .