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 B1246 present and is parameter of "DR AIR MIX potentiometer" fixed?
** Parameter of "DR AIR MIX potentiometer" will be fixed at d at 100% (or any value above 90%), or 0% (or any value below 10%), if there is any fault in DR AIR MIX actuator.
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.