U0646 - Lost Communication With Motor Electronics Coolant Pump A
U0646 is a generic network/communication diagnostic trouble code indicating Lost Communication With Motor Electronics Coolant Pump A. It relates to the System-Specific system.
DTC Breakdown (SAE J2012)
| System | Network/Communication (U) |
| Type | Generic |
| Subsystem | System-Specific |
| Fault Index | 46 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code U0646 mean?
The dtc/">diagnostic trouble code U0646 represents Lost Communication With Motor Electronics Coolant Pump A. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
Detailed diagnostic guides and specific fix procedures for code U0646 are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about U0646
What does U0646 mean?
The diagnostic trouble code U0646 represents Lost Communication With Motor Electronics Coolant Pump A. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
What is the system for U0646?
The U0646 code is located in the vehicle's Network/Communication network.