What Does P1701 Mean?
The powertrain control module has detected an electrical malfunction in the turbocharger boost pressure control solenoid circuit. This affects the ability to regulate turbocharger boost pressure properly.
Common Causes
40%
Failed turbo wastegate control solenoid valve
25%
Damaged wiring or corroded connector at turbo solenoid
20%
Vacuum or boost pressure hose leaks affecting solenoid operation
10%
Shorted or open circuit in solenoid control wiring
5%
Faulty PCM driver circuit for turbo control
Diagnostic Steps
1
Step 1: Locate turbo boost control solenoid and inspect electrical connector and wiring for damage
2
Step 2: Measure solenoid resistance (typically 20-40 ohms) and compare to specifications
3
Step 3: Check for power and ground at solenoid connector with key on
4
Step 4: Inspect all vacuum/boost hoses connected to wastegate actuator and solenoid for leaks or damage
5
Step 5: Use scan tool to command solenoid on/off and listen for clicking; monitor boost pressure response
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The powertrain control module has detected an electrical malfunction in the turbocharger boost pressure control solenoid circuit. This affects the ability to regulate turbocharger boost pressure properly.
The most common cause of P1701 (Turbo Pressure Control Solenoid Circuit Malfunction) is: Failed turbo wastegate control solenoid valve
Typical repair costs for P1701 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May result in reduced power or overboost conditions. Generally safe to drive but performance will be affected and engine protection may be compromised.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1701 to identify the root cause.
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Quick Info
Category
Powertrain
System
Turbocharger Boost Control
Difficulty
Type
Manufacturer
Recommended Tools
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