Diagnostic Test
- VERIFY THAT ALL OF THE COOLDOWN TEST PREREQUISITES WERE MET
- Review the list of Cooldown Test prerequisites.
- DTCs B1031 and B1032 must not be active.
- The refrigerant system must be adequately charged.
- The blower motor must operate correctly in all speeds.
- The work area ambient temperature must be above 18.3°C (65°F).
- The evaporator temperature must be above 18.3°C (65°F).
- The A/C compressor must be turned off.
- CHECK FOR DTCs IN THE PCM
- With the scan tool, select PCM.
Are any DTCs present in the PCM?
Yes
- Diagnose and repair the DTCs. Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure for PCM DTCs. Run the Cooldown Test again after the repair is complete.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
No
- Refer to the Service Information for additional Cooldown Test related diagnostic information and testing procedures. Run the Cooldown Test again after the repair is complete.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
- With the scan tool, select PCM.