U1110 on RAM
Network Communication Fault (manufacturer-specific; commonly Lost Vehicle Speed Message)
U1110 on RAM vehicles indicates network communication fault (manufacturer-specific; commonly lost vehicle speed message). Au7o has documented this code across 1 RAM model — most commonly on 2500. U1110 is a manufacturer-specific network (U) code, so its exact meaning varies by automaker. It generally indicates a data-bus communication problem; on several makes (such as Chrysler and Ford) it is associated with a lost or invalid vehicle speed message, meaning a module did not receive the expected speed data over the network. Loss of this data can affect modules that rely on vehicle speed, sometimes causing speedometer, cruise, or related symptoms. The specific definition should be confirmed against the vehicle's service information. Typical repair costs on RAM range from $300 to $1,200, depending on the specific model and root cause.
Common Causes of U1110
- •Wiring or connector fault on the communication bus
- •Faulty source module (e.g., ABS module sending speed data)
- •Loss of power or ground to a networked module
- •Corroded connector pins
- •Bus wiring short or open
- •Faulty receiving control module
U1110 on RAM by Model
RAM 2500(1 issue)
- TIPM (Totally Integrated Power Module) Failure2006-2018
The TIPM is the central under-hood fuse/relay and power-distribution computer that controls the fuel pump, lighting, wipers, door locks, horn, and trailer-tow circuits. It is a widespread failure point on 2007-2016 Ram trucks. The most common complaint is the internal fuel pump relay sticking: stuck ON causes overnight battery drain and the pump running with the key off, while stuck OFF causes intermittent no-start / stalling. Other failures include inoperative wipers, dead door locks, non-working turn signals/high beams, phantom horn, and dead trailer lights. Root causes include water intrusion into the layered module and improperly spliced aftermarket accessories overloading circuits.
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View U1110 across all makes →Frequently Asked Questions
What does U1110 mean on RAM?▼
U1110 stands for "Network Communication Fault (manufacturer-specific; commonly Lost Vehicle Speed Message)." U1110 is a manufacturer-specific network (U) code, so its exact meaning varies by automaker. It generally indicates a data-bus communication problem; on several makes (such as Chrysler and Ford) it is associated with a lost or invalid vehicle speed message, meaning a module did not receive the expected speed data over the network. Loss of this data can affect modules that rely on vehicle speed, sometimes causing speedometer, cruise, or related symptoms. The specific definition should be confirmed against the vehicle's service information. On RAM specifically, this code is documented across 1 model.
What causes U1110 on RAM vehicles?▼
Common causes on RAM: Wiring or connector fault on the communication bus, Faulty source module (e.g., ABS module sending speed data), Loss of power or ground to a networked module, Corroded connector pins, Bus wiring short or open. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U1110 on a RAM?▼
Repair costs on RAM range from $300 to $1,200, depending on the specific model and root cause.
Which RAM models have U1110 documented?▼
Au7o has documented U1110 on 1 RAM model: 2500.