HVAC (Heating, Ventilation, Air Conditioning) Not Cold Enough, Intermittent A/C Operation or Occasional Warm Air From Instrument Panel Air Outlets
| Subject: | Air Conditioning Not Cold Enough, Intermittent A/C Operation Or Occasional Warm Air From Instrument Panel Air Outlets (Reprogram ECM) |
| Models: | 2008 Chevrolet Equinox |
| 2008 Pontiac Torrent |
| with 3.4L Engine (VIN F -- RPO LNJ) |
| Built Prior to VIN Breakpoint 86075512 |
Condition
Some customers may comment that the air conditioning (A/C) is not cold enough. Others may comment on intermittent A/C operation or occasional warm air from the instrument panel air outlets.
Cause
This condition may be caused by a software anomaly that causes the compressor to stay off for too long.
Correction
Do This | Don't Do This |
|---|---|
Update the ECM software. | Do not replace the compressor, ECM or any other A/C system components. |
A revised calibration has been developed to address this condition. Technicians are to reprogram the Engine Control Module (ECM) using SPS with the latest software available on TIS2WEB. Refer to the Engine Control Module Programming and Setup (LNJ) procedure in SI for more information. As always, make sure your Tech 2® is updated with the latest software version.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J6354 | Powertrain Control Module Engine Reprogramming with SPS | Use Published Labor Operation Time |
