Possible Causes
WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
| POSSIBLE CAUSES |
|---|
| SECONDARY AIR PUMP RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE |
| (K644) SECONDARY AIR PUMP CONTROL CIRCUIT SHORTED TO GROUND |
| (K644) SECONDARY AIR PUMP CONTROL CIRCUIT SHORTED TO VOLTAGE |
| (K644) SECONDARY AIR PUMP CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .