Symptom Related Diagnostic Procedures

MATRIX CHART OF PROBLEM SYMPTOMS
- If a normal code is displayed during the diagnostic trouble code check (sensor check) but the trouble still occurs (reappears), perform out troubleshooting for each problem symptom, checking the circuits for each symptom in the order given in the table above.

HINT:
- If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check.
- If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check or replace the air conditioning control assembly (contains the ECU).