DTC C129D Chevrolet
Loss Of Communication With VTD (Passlock) Controller
Loss Of Communication With VTD (Passlock) Controller
Description
Key on, and a message from a learned ID number was not detected for the five seconds. Modules on the Class 2 circuit monitor for data communications during vehicle operation. When a module receives a message for critical data, the module records the ident
Cause and Solution
VTD Class 2 circuit is open, shorted to ground or to B+VTD ignition power circuit has a high resistance conditionVTD main ground circuit(s) has a high resistance conditionVTD (module) may have failed and is pulling the circuit lowRef
Video Guide
Diagnostic Info
- DTC Code: C129D
- Brand: Chevrolet