U0131 on Cadillac
Lost Communication with Power Steering Module
U0131 on Cadillac vehicles indicates lost communication with power steering module. Au7o has documented this code across 1 Cadillac model — most commonly on XTS. This is a network communication code meaning the vehicle's computers have lost communication with the power steering control module over the data bus (CAN). Modern cars link control modules so they can share data, and this code sets when other modules stop receiving expected messages from the power steering unit. The most common result is loss or reduction of power-assisted steering, making the wheel feel heavy, along with a warning light. It generally points to a wiring/connector or power problem at the steering module, a bus fault, or a failed module rather than a mechanical steering issue. Typical repair costs on Cadillac range from $100 to $1,200, depending on the specific model and root cause.
Common Causes of U0131
- •Loss of power or ground to the power steering module
- •Open or shorted CAN bus wiring to the module
- •Corroded or loose connector at the steering module
- •Blown fuse feeding the power steering system
- •Failed power steering control module
- •Other module or wiring fault disrupting the data bus
- •Software/configuration mismatch after a repair
U0131 on Cadillac by Model
Cadillac XTS(1 issue)
- Service Power Steering Message (FWD Belt-Drive EPS)2014-2016
Front-wheel-drive XTS models use a belt-drive electric power steering (EPS) system (AWD models use hydraulic). Owners report a 'Service Power Steering' message in the driver information center, usually after a cold start, sometimes with momentarily heavy/reduced steering assist. GM documents the condition with power-steering control module codes C056D 3C and C0475 00 and a BCM U0131, frequently traced to a poor G111 ground, a loose 80A F72UA fuse, or low battery voltage rather than a failed steering gear.
Looking for U0131 on a different make?
View U0131 across all makes →Frequently Asked Questions
What does U0131 mean on Cadillac?▼
U0131 stands for "Lost Communication with Power Steering Module." This is a network communication code meaning the vehicle's computers have lost communication with the power steering control module over the data bus (CAN). Modern cars link control modules so they can share data, and this code sets when other modules stop receiving expected messages from the power steering unit. The most common result is loss or reduction of power-assisted steering, making the wheel feel heavy, along with a warning light. It generally points to a wiring/connector or power problem at the steering module, a bus fault, or a failed module rather than a mechanical steering issue. On Cadillac specifically, this code is documented across 1 model.
What causes U0131 on Cadillac vehicles?▼
Common causes on Cadillac: Loss of power or ground to the power steering module, Open or shorted CAN bus wiring to the module, Corroded or loose connector at the steering module, Blown fuse feeding the power steering system, Failed power steering control module. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0131 on a Cadillac?▼
Repair costs on Cadillac range from $100 to $1,200, depending on the specific model and root cause.
Which Cadillac models have U0131 documented?▼
Au7o has documented U0131 on 1 Cadillac model: XTS.