Turbocharger Wastegate Actuator Position Sensor
Wastegate position sensor signal is out of range or failed.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The sensor that tells the computer how far the wastegate is open or closed is either broken or reading incorrectly.
What the computer is actually seeing
The engine control unit (ECU) looks for a signal from the wastegate position sensor that should vary from 0-5 volts. If it detects a voltage outside this range, it triggers the fault code.
What a healthy reading looks like
Expected sensor voltage is 0-5 volts depending on wastegate position; 0 volts generally means the wastegate is fully closed, while 5 volts indicates it's fully open.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check the wiring and connectors for signs of damage or corrosion. Repair if necessary. Decision point: Are the connections clean and secure?
- 2Measure the voltage at the wastegate position sensor with the key ON (engine OFF). Expected range is 0-5 volts. Decision point: Is voltage within normal range?
- 3If voltage is out of range, inspect the sensor for physical damage and test its operation by replacing it temporarily with a known good part. Decision point: Is the replacement sensor functioning correctly?
- 4If the new sensor works, then install it. If not, check the wiring continuity between the sensor and the ECU.
Common causes
- Wiring issues or damaged connectors
- Faulty wastegate actuator position sensor
- Pneumatic leaks in the actuator circuit
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best to avoid driving until resolved, as it can lead to reduced performance and emissions issues.
Will this code come back after clearing?
Yes, if the underlying issue isn't fixed, the code is likely to return.
Why does this code sometimes pair with other codes?
This code can be accompanied by related faults in the turbocharger system, sensing components, or actuator circuits.
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