Lost Communication with Personal Computer
The vehicle gateway has lost the on-board computer / fleet telematics PC. Logging, fleet management or driver-assistance based on the PC stop working.
Affected components
- Onboard pc
- Can bus wiring
Common causes
- High likelihood: PC unpowered or hung
- Low likelihood: Gateway module routing CAN messages incorrectly
- Low likelihood: CAN terminating resistor (120 Ω) drifted out of spec
Possible symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.