• When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL) indication, AT warning light flash, and diagnostic trouble code (DTC), then diagnose the malfunction according to the following flowchart.

– If a DTC exists, diagnose the applicable DTC inspection. (See DTC TABLE [RC4A-EL].)
– If no DTC exists, the MIL does not illuminate and AT warning light illuminate. Diagnose the applicable symptom troubleshooting. (See SYMPTOM TROUBLESHOOTING ITEM TABLE.)

*: Malfunction Indicator Lamp (MIL), AT warning light