U0144

Lost Communication With Body Control Module D

Communication network (body electronics) Generic OBD-II Medium

What it means

U0144 means another module has stopped receiving data from body control module "D" — a controller that manages body electronics such as lighting, locks, wipers, and interior features. The engine typically still runs, but the features this module handles may stop working and warning lights appear. It usually traces to wiring or connector damage, a power/ground problem, water intrusion, or a failed module — not an engine fault.

Medium

Can I keep driving? Usually drivable — the engine runs, but body features handled by this module (lighting, locks, wipers, interior electronics) may not work, and warning lights are common.

Common symptoms

What you'll notice

Body/convenience features dead or erratic (exterior lights, locks, wipers, interior lamps)
Warning lights and messages on the dash
Other modules report lost communication with the body control module
Intermittent electrical faults that come and go

Common causes

Most likely first

Damaged or corroded CAN wiring/connector at the body control moduleLikely
No power or ground to the module (blown fuse, bad ground)Common
Water intrusion into the module or its connectorCommon
Internally failed body control moduleLess often
Bus fault taking down the segment the module sits onLess often

How to diagnose & fix

Work through it in order

Scan all modules; confirm whether only this body control module is missing or a whole bus segment is down.
Check power, grounds, and fuses feeding the module.
Inspect the module's connectors and CAN wiring for corrosion, moisture, and damage.
Verify CAN-High/CAN-Low resistance and voltages to rule out a bus wiring fault.
If wiring and power are good and the module won't respond, replace/reprogram it per the service procedure, then clear and re-test.

FAQ

Quick answers

Is it safe to drive with U0144?+

Usually yes for the engine, but on many vehicles the body control module handles lighting and other safety-relevant features, so verify your lights and wipers work and get it fixed promptly.

Can I just clear U0144?+

No lasting benefit — the code returns until the wiring, power, or module fault is repaired. Fix the cause, then clear.

Related codes

Often seen with U0144

U0140Lost Communication With Body Control Modul U0141Lost Communication With Body Control Modul U0142Lost Communication With Body Control Modul U0143Lost Communication With Body Control Modul

Read & clear U0144 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

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✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX