P0600 – Serial Communication Link Malfunction
Description
The ECM detects a failure in the serial communication link between control modules.
Need More Than Just the Fault Code?
A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.
Compare Diagnostic ScannersSymptoms
- No start
- Harsh shifting
- Multiple warning lights
- Reduced power
Causes
- CAN bus wiring fault
- Loose connectors
- ECM/TCM failure
Diagnosis
- Scan for U-codes
- Inspect CAN wiring
- Check module power/grounds
Repair
- Repair wiring
- Clean connectors
- Replace faulty module