P004A

Turbocharger/Supercharger Boost Control B Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Unstable engine operation

Causes

Broken wiring harness
Turbo control solenoid malfunction
Turbocharger problems
Short circuit in the circuit

How to Fix

Check the integrity of the wiring harness
Check the operation of the control solenoid
Diagnose a turbocharger
Check fuses and relays

Related codes

P0299 P2263 P2563