Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic trouble code (DTC) information
Condition
The throttle position (TP) sensor signal from the engine control module (ECM) is a pulsed signal (between approximately 0 V and battery voltage) with a fixed frequency (approximately 50 Hz). The pulse ratio (% duty) changes as the throttle opens. If the engine control module (ECM) registers a fault in the signal from the throttle position (TP) sensor, the engine control module (ECM) transmits a special throttle position (TP) sensor signal to the DSA control module. This informs the DSA control module that the throttle position (TP) sensor signal to the engine control module (ECM) is faulty. Diagnostic trouble code (DTC) DSA-233 is stored when the DSA control module has received this signal.
Substitute Value
The DSA function is disengaged.
Possible Source
- A diagnostic trouble code (DTC) for the throttle position (TP) sensor has been stored in the engine control module (ECM).
Fault symptom[s]
- The DSA warning lamp lights.
- The anti-spin function is not operative while the DSA function is disengaged.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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