Operation CHARM: Car repair manuals for everyone.

Monitor Scantool Data





Monitor Scantool Data

1. Connect scantool to Data Link Connector (DLC).
2. Engine "ON"
3. Monitor the "AQS sensor" Parameter on the Scantool. While making hazardous gas such as tobacco fumes around the AQS sensor




4. Are the DTC B1258 present and is parameter of "AQS sensor" fixed ?
** Parameter of "AQS sensor" will be fixed even though hazardous gas is around AQS sensor, if there is any fault in AQS sensor
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.