Possible Causes
WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| (F343) FUSED ASD/MAIN 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. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .