Possible Causes
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
| AIR SUSPENSION RELAY |
| (Y38) COMPRESSOR RELAY SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| (Y39) COMPRESSOR RELAY RETURN CIRCUIT OPEN OR HIGH RESISTANCE |
| (Y39) COMPRESSOR RELAY RETURN CIRCUIT SHORTED TO GROUND |
| AIR SUSPENSION CONTROL MODULE (ASCM) |