Severity: Fix within days. Drive with caution and watch for new symptoms.
The engine computer cannot communicate properly with another module in the car over the data network.
A scan tool is needed to see which module is not talking, then check its wiring and power.
Other systems may act up. Get it diagnosed with a scan tool soon.
You can drive short distances carefully; watch for worsening symptoms. Other systems may act up. Get it diagnosed with a scan tool soon.
The most common causes are: Damaged data wiring; Failed module; Corroded connector; Failing engine computer. A scan tool and a visual check of the parts above is where a technician starts.
A scan tool is needed to see which module is not talking, then check its wiring and power.
