P1693
Turbo Charge Control Circuit Malfunction
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–167 (est.)
Symptoms
- Reduced engine power
- Increased fuel consumption
- Rough engine operation
- Check Engine Light Illuminates
- Noticeable deterioration in acceleration dynamics
Causes
- Open or short circuit in the turbocharger control circuit
- Turbine control solenoid valve malfunction
- Problems with the boost pressure sensor
- Mechanical damage to the turbocharger
- Poor contact in control circuit connectors
How to Fix
- Check the integrity of the wiring and connectors of the control circuit
- Test the turbine control solenoid valve
- Check the performance of the boost pressure sensor
- Inspect the turbocharger for mechanical damage
- Read turbocharging operating parameters via a diagnostic scanner