Code Definition

U0167 — Lost Communication With Vehicle Immobiliser Control Module

System: Network Communication  |  Type: Generic (OBD-II Standard)  |  Make: Ford

About U0167

U0167 is a generic (obd-ii standard) network communication diagnostic trouble code recorded for Ford vehicles. It belongs to the U-prefix family of codes, which covers inter-module network communication (CAN, LIN, FlexRay, or similar) faults.

Scanning & clearing: Network (U) codes report communication faults between modules. When diagnosing U-codes, checking the vehicle's CAN bus integrity, supply/ground at each module, and reading all modules for related faults is usually the first step.

Because U0167 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Powertrain Control Module (PCM) and Body Control Module (BCM) communicate with the Vehicle Immobiliser Control Module over the Controller Area Network (CAN) to authenticate the ignition key and enable engine starting. DTC U0167 is set when the PCM or BCM does not receive valid CAN messages from the immobiliser control module within a calibrated time while the ignition is in the RUN or START position. This indicates a network communication failure or a loss of power or ground preventing immobiliser status from being confirmed.

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