Bosch · OBD1300 Scan Tool
This message indicates that the throttle position sensor (TPS) or the accelerator pedal position is reporting a value outside the expected range during a self-test. This can affect engine performance and idle control.
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Ensure the engine is running and follow all on-screen prompts during the self-test.
Do not touch the throttle pedal during the self-test if instructed.
Check the wiring and connectors for the throttle position sensor and accelerator pedal.
If the problem continues, the throttle position sensor or accelerator pedal assembly may need replacement.