U010D — Lost Communication With Turbocharger/Supercharger Control Module "B"

vehicle network

Is it safe to drive?

Drive with caution Drive gently and avoid boost. The car will likely be down on power and may be in limp mode; ignoring boost faults can overheat the engine and destroy the turbo — a far more expensive repair.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm U010D is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the turbocharger / supercharger boost control for damage, corrosion, chafing or poor contact.
Subsystem check Pressure-test the intake piping for boost leaks — cracked intercooler hoses are the most common cause.
Subsystem check Command the boost control solenoid with a scanner and verify wastegate movement.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U010D does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for U010D (parts and labor, USD, independent shop rates): Turbocharger replacement: $1,200–$3,500; Replace boost control solenoid or actuator: $200–$600; Repair boost leak (hoses, clamps, intercooler): $100–$400. Overall, fixing U010D usually costs between $100 and $3,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

How do I diagnose U010D myself?

Start with a scan: confirm U010D, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the turbocharger / supercharger boost control, and verify the suspect component against live data before buying parts.

What are the symptoms of U010D?

Drivers most often notice: Check Engine Light on, whistling or siren noise from the engine bay, black smoke under acceleration, increased oil consumption.

What does OBD2 code U010D mean?

Lost Communication With Turbocharger/Supercharger Control Module "B" (U010D): a vehicle network fault affecting the turbocharger / supercharger boost control. Short, gentle driving to a shop is usually possible. Most often caused by faulty boost pressure sensor, stuck wastegate or faulty boost control solenoid, worn turbocharger.

What is the most common cause of U010D?

The most common causes are: faulty boost pressure sensor, stuck wastegate or faulty boost control solenoid, worn turbocharger.

Will U010D clear itself?

Sometimes U010D clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

What does U010D mean?

Behind U010D is a specific failure in the turbocharger / supercharger boost control: lost communication with turbocharger/supercharger control module "B". The onboard computer stores it in the vehicle network group after verifying the fault over repeated checks.

The module monitors this system continuously while driving. When readings fall outside the expected range for a defined number of drive cycles, it stores U010D and switches on the warning light. Freeze frame data saved with the code shows the exact conditions — rpm, load, temperature, speed — at the moment the fault was detected, which is the best starting point for diagnosis.

What causes U010D?

vacuum or actuator line damage
clogged intake or exhaust (DPF/cat)
stuck wastegate or faulty boost control solenoid
faulty boost pressure sensor
boost leak in intercooler piping or hoses

Common symptoms of U010D

Check Engine Light on
whistling or siren noise from the engine bay
black smoke under acceleration
increased oil consumption
significant loss of power
limp-home mode

How to diagnose U010D

Connect an OBD2 scanner, confirm U010D is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Visually inspect the wiring harness and connectors related to the turbocharger / supercharger boost control for damage, corrosion, chafing or poor contact.
Pressure-test the intake piping for boost leaks — cracked intercooler hoses are the most common cause.
Command the boost control solenoid with a scanner and verify wastegate movement.
Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U010D does not return.

How to fix U010D

Start with the cheapest and most common causes before replacing expensive parts:

Turbocharger replacement — $1,200–$3,500
Replace boost control solenoid or actuator — $200–$600
Repair boost leak (hoses, clamps, intercooler) — $100–$400

How much does it cost to fix U010D?

Repair cost depends on which component actually failed. Typical scenarios for U010D (parts and labor, USD, independent shop rates):

Turbocharger replacement: $1,200–$3,500
Replace boost control solenoid or actuator: $200–$600
Repair boost leak (hoses, clamps, intercooler): $100–$400

Overall, fixing U010D usually costs between $100 and $3,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with U010D?

Drive gently and avoid boost. The car will likely be down on power and may be in limp mode; ignoring boost faults can overheat the engine and destroy the turbo — a far more expensive repair.