U040E

Invalid Data Received From Turbocharger/Supercharger Control Module B

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Loss of engine power
Check Engine Light Is On
Turbojam (turbine reaction delay)
Intermittent operation of the turbocharger
Switching to emergency mode

Causes

Malfunction of the turbocharger control module
Open or short circuit in the communication circuit
Connector problems or contact corrosion
Software error in control module
Control module power problems

How to Fix

Check the integrity of the wiring harness and connectors
Check power supply and grounding of the module
Read turbocharger module fault codes
Update control module firmware (if available)
Replace the turbocharger control module if necessary

Related codes

U040F U0410 P2263