What is "U0423 OBD Trouble Code" mean?
Asked by WRX_17023 Feb 20, 2017 at 08:39 PM about the 2008 Mercedes-Benz M-Class ML 320 CDI 4MATIC
Question type: Maintenance & Repair
When I used BOD II scanner to scan on the car, I've got the result like that:
* U0423 - Generic
- Type: Network - Network Date - ISO/SAE Controlled
- Description: Invalid Data Received From Instrument Panel Cluster Control Module
3 Answers
U0423 - Invalid Data Received From Instrument Panel Cluster Control Module...Possible causes; Invalid data network concerns, data is transferred within the normal inter-module message, but contains known invalid data. The transmitting module logs a DTC related to the invalid data concern. Missing message network concerns missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period...Check for other Powertrain Control Module (PCM) codes or PCM related symptoms. Diagnose all other PCM codes or PCM related symptoms first.
Basically what the code means is that the system can not communicate with the different modules in the vehicle and requires a different type of scanner. Bottom line. U need to take it to the dealer.
I kept getting code P007 on check engine alert. After replacing the MAF sensor, the intake ambient air sensor and checked harness still received P007, so I then ordered a new outside ambient temp sensor for my 2005 MB Sprinter Van part No AX158 because I was getting abnormal outside temp readings on my dashboard. While waiting on the new part to arrive, I ran codes again and got code U0423 but P007 was gone. Hopefully all will disappear when I get new part.
