3.
Monitor the " AQS sensor " Parameter on the Scantool. While making hazardous gas such as tobacco fumes around the AQS sensor.
Connect scantool to Data Link Connector(DLC).
Engine "ON".
Monitor the " AQS sensor " Parameter on the Scantool. While making hazardous gas such as tobacco fumes around the AQS sensor.
Are the DTC B1258 present and is parameter of " AQS sensor " fixed?
YES
Go to "Inspection & Repair" procedure.
NO
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.
