The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to troubleshoot when, during a DTC check, a "Normal" code is displayed but the problem is still occurring. Numbers in the table show the inspection order in which the circuits or parts should be checked.
HINT: In some cases, the problem is not detected by the diagnostic system even though a problem symptom is present. It is possible that the problem is occurring outside the detection range of the diagnostic system, or that the problem is occurring in a completely different system.

Diagnostic trouble code chart
Circuit inspectionDrive information
Current fuel consumption*1
displays the current rate of fuel consumption
average fuel economy (after reset*2/after start/after refuel)*1
displays the average fuel economy since the function was reset,
the engine was started, and the vehicle was refueled, respectively
use the displ ...