Throttle Position 2 Invalid Data
The secondary throttle position data is out of expected range.
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 engine computer expects a specific position from the throttle sensor but is getting something unexpected, which can cause power issues.
What the computer is actually seeing
The throttle position sensor should report a voltage between 0.5V (fully closed) and 4.5V (fully open). If the value is outside this range or inconsistent with the actual throttle position, a fault is triggered.
What a healthy reading looks like
Throttle position voltage should read 0.5V to 4.5V under normal operation, with a smooth transition as throttle is applied.
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.
- 11. Inspect the throttle position sensor wiring and connectors for damage or corrosion. Repair as needed. Decision: Are the connections intact? Yes: Proceed. No: Repair or replace connectors.
Common causes
- Faulty throttle position sensor
- Wiring issues or harness damage
- Poor electrical connection at the throttle body
- Throttle body sticking or mechanical obstruction
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with SPN 384?
Yes, but expect reduced power and possible engine stalling. Drive with caution until repaired.
Will the fault code come back after clearing?
If the underlying issue isn't fixed, the code will likely return.
Why does this code occur with other throttle codes?
Multiple throttle position sensors can cause conflicts; they all report to the engine control unit.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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