FixVault
Home › Chrysler › 1996 › LHS › Repair and Diagnosis › External Pages › Different car › Section 72 (HVAC Systems - Automatic) › Testing › A/C System Charge Level Test › Scan Tool Method

Scan Tool Method

WARNING: This page is about a different car, the 1998 Dodge Intrepid and 1998 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
  1. Attach clamp-on thermocouple to liquid line, as close to condenser outlet as possible. Attach scan tool to Data Link Connector (DLC), located right of steering column, under instrument panel. See Figure .
  2. Set parking brake, and place transaxle in Park position. Start engine and allow to idle. Set A/C controls to outside air, panel mode, full cool, and high blower speed. Turn A/C on, and open windows. Operate system for a few minutes to allow system to stabilize.
  3. Place cardboard over front grille area, to block airflow through part of condenser, to set A/C pressure to 260 psi (18.3 kg/cm2 ). This will stop cooling fans from alternating speeds and maintain constant pressure.
  4. Scan tool will automatically calculate system charge. Depending on system charge condition, corrections are made 2 ounces at a time. Each time a correction is made, recheck readings to ensure proper charge. Total system refrigerant capacity is 28 ounces.
About FixVault