What P0600 means
Serial Communication Link Malfunction
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P0600:
| AUDI | Defective PCM (Power Train Control Module), Defective PCM data bus wiring/connections, Defective PCM data bus ground circuit(s), Defective PCM or other control module controlled output devices, Defective CAN bus communication |
| BMW | Serial Communication Link |
| FORD | Serial Communications Link Malfunction |
| HONDA | Multiplex Control System Troubleshooting |
| MITSUBISHI | Serial Communication Link Malfunction; Serial communication link |
| NISSAN | Serial Communication Link Malfunction |
| VOLKSWAGEN | Serial Communication Link Malfunction |
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