High severity
P004AInterruption in the Turbocharger Control Circuit
Part
Turbocharger Control Valve
Part price
$55
At a workshop
$93
You save
$38
How to read code P004A
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
4A
Fault number
Specific fault within the subsystem
Symptoms
- Complete lack of boost
- Spotty acceleration
- Check engine light stays on
Possible causes
- Blown turbo actuator connector
- Broken wire in the harness
- Faulty boost control valve
Diagnostic steps
- 1Visually inspect the condition of the connectors and wires near the turbo
- 2Use a multimeter to check for continuity on the wires
- 3Test the resistance of the turbo actuator valve
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Frequently asked questions about P004A
What does code P004A mean?
P004A: Interruption in the Turbocharger Control Circuit.
What are the symptoms of code P004A?
Complete lack of boost; Spotty acceleration; Check engine light stays on.
What causes code P004A?
Blown turbo actuator connector; Broken wire in the harness; Faulty boost control valve.
Can I drive with code P004A?
LIMP MODE – You may drive carefully to the nearest workshop only.
How much does it cost to fix code P004A?
The part (Turbocharger Control Valve) costs about $55, and a mechanic’s labour about $38.
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