U0161Lost Communication with Compass Module
A control module that expects to talk to the engine ECU has stopped receiving messages. Most commonly seen by the TCM, instrument cluster, or BCM after the ECU has been disconnected, fitted with a faulty replacement, or the CAN wiring has been damaged. Engine usually will not run while this fault is active in other modules.
Can I keep driving? Yes
You can keep driving normally. Schedule a check soon so emissions and performance are not affected.
Sistema Afectado
Red CAN · Comunicación entre módulos
Falla de comunicación en la red CAN: pérdida de datos entre las unidades de control (ECU).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Multiple warning lights may illuminate Affected modules may go into limp mode or shut down Specific functions inoperative depending on module Diagnostic tools may show communication faults
Possible Causes
The components or conditions that trigger this code
- 1Compass module unpowered CAN wiring to compass module broken Gateway module routing CAN messages incorrectly
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 0.5-2 hours. Estimated cost: €50-€
- 2Professional repair recommended
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Communication modules
* Diagnosis only: $50–$150
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