Operation CHARM: Car repair manuals for everyone.

Scantool Diagnostics





B2406 Air mix motor (Driver)

Scantool Diagnostics - Monitor Scantool Data

Monitor Scantool Data

1. Connect scantool to Data Link Connector (DLC).
2. Engine "ON".
3. Monitor the "DR AIR MIX potentiometer" Parameter on the Scantool. While operating temp switch




4. Are the DTC B2406 present and is parameter of "DR AIR MIX potentiometer" fixed?

CAUTION:
** 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
1) Go to "Inspection & Repair" procedure.
NO
1) Fault is intermittent caused by poor contact in the sensor's and/or A/C control unit's connector or was repaired and A/C control unit 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.