DTC P1420 Mercedes-Benz
No Communication With Driver Information Center
No Communication With Driver Information Center
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 identification number of the module sending the message for State of Health monitoring (Node Alive messages). Once a module learns an ID number, it checks for that modules Node Alive message. Note: Look for this code in all modules. The one without the code is the module that has a problem, and it may have failed.
Cause and Solution
DIC Class 2 circuit is open, shorted to ground or to B+DIC ignition power circuit has a high resistance conditionDIC main ground circuit(s) has a high resistance conditionDIC (module) may have failed and is pulling the circuit low
Video Guide
Diagnostic Info
- DTC Code: P1420
- Brand: Mercedes-Benz