3.
Monitor the "DR AIR MIX Potentiometor" Parameter on the Scantool.
Connect scantool to Data Link Connector(DLC).
Engine "ON"
Monitor the "DR AIR MIX Potentiometor" Parameter on the Scantool.
Are the DTC B2406 present and is parameter of "DR AIR MIX Potentiometor" fixed?
※There is any fault in DR AIR MIX Motor. If the parameter of "DRIVER AIR MIX DOOR" is 30% or less when the actuator operates to the hot position, or If the parameter is 60% and more when the actuator operates to the cold position
YES
Go to "Inspection & Repair" procedure
NO
Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
