U0155 on Volvo
Lost Communication with Instrument Cluster
U0155 on Volvo vehicles indicates lost communication with instrument cluster. Au7o has documented this code across 1 Volvo model — most commonly on S60. This is a network communication code meaning a control module (usually the engine or body computer) has lost communication with the instrument cluster over the vehicle's data bus. Modern vehicles share information between modules over a network (such as CAN), and the cluster both displays data and relays messages. When messages from the cluster stop arriving, this code sets. You may see warning lights, dead or erratic gauges, missing displays, or other modules acting up. It usually points to wiring, power/ground, or the cluster itself rather than the engine. Typical repair costs on Volvo range from $250 to $900, depending on the specific model and root cause.
Common Causes of U0155
- •Faulty instrument cluster
- •Loss of power or ground to the cluster
- •Damaged or corroded CAN bus wiring
- •Loose or corroded connectors at the cluster
- •Blown fuse feeding the cluster
- •Short or open on the communication bus
- •A different failed module dragging down the bus
U0155 on Volvo by Model
Volvo S60(1 issue)
- DIM (Driver Information Module) Instrument Cluster Solder Joint Failure2001-2009
The P2 S60's instrument cluster is a self-contained module (DIM) that sits on the CAN bus. Thermal cycling in the dash cracks the solder joints where the cluster's connector pins and internal components attach to the circuit board. The result is intermittent, then permanent, cluster dropout: gauges swing to zero, the odometer/trip display goes dark, and a cascade of warning lights appears because other modules lose their bus partner. Owners describe the dash 'stopping while driving' and warning lights flickering on and off. Because the DIM also gates the immobilizer handshake on some cars, a fully failed cluster can leave the vehicle a no-start.
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What does U0155 mean on Volvo?▼
U0155 stands for "Lost Communication with Instrument Cluster." This is a network communication code meaning a control module (usually the engine or body computer) has lost communication with the instrument cluster over the vehicle's data bus. Modern vehicles share information between modules over a network (such as CAN), and the cluster both displays data and relays messages. When messages from the cluster stop arriving, this code sets. You may see warning lights, dead or erratic gauges, missing displays, or other modules acting up. It usually points to wiring, power/ground, or the cluster itself rather than the engine. On Volvo specifically, this code is documented across 1 model.
What causes U0155 on Volvo vehicles?▼
Common causes on Volvo: Faulty instrument cluster, Loss of power or ground to the cluster, Damaged or corroded CAN bus wiring, Loose or corroded connectors at the cluster, Blown fuse feeding the cluster. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0155 on a Volvo?▼
Repair costs on Volvo range from $250 to $900, depending on the specific model and root cause.
Which Volvo models have U0155 documented?▼
Au7o has documented U0155 on 1 Volvo model: S60.