U0060 indicates an open circuit in the vehicle's communication bus D, which is part of the Controller Area Network (CAN) system. This fault disrupts data exchange between modules, often causing multiple warning lights and drivability issues.
A break in the CAN D high or low wires, often due to chafing, corrosion, or rodent damage, is the most common cause.
Moisture or vibration can cause poor pin contact at module connectors, creating an open circuit.
A failed module (e.g., ABS, BCM, or transmission control module) can internally open the bus circuit or pull the bus voltage out of range.
Add-on devices (alarms, remote starters, audio systems) spliced into the CAN bus can cause an open or short.
Missing or open termination resistor at one end of bus D can cause communication failure, though this is less common for a single open code.
While rare, the powertrain control module can fail internally and cause an open on bus D. This should only be considered after thoroughly inspecting wiring and other modules.
Possibly, but it depends on which modules are affected. If critical systems like the engine or transmission control lose communication, the vehicle may stall, not start, or behave unpredictably. It's best to diagnose and repair promptly.
No. Most often it is a wiring or connector issue. A faulty module is possible but less common. The PCM/ECM is rarely the cause; replacing it without proper diagnosis is usually a waste of money.
Modern vehicles have multiple CAN buses (e.g., Bus A, B, C, D) to separate different systems. Bus D typically connects body control, instrument cluster, or other low-speed modules. The exact assignment varies by manufacturer.
A severely discharged or weak battery can cause communication errors, but it rarely produces a specific 'open' code like U0060. If the battery is low, charge it and clear the code; if it returns, look for wiring or module faults.