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Home >> Volvo >> 2000 >> S70 T-5, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Turbo >> Diagnostic Tests >> P0120, P0121/ECM-958F: Accelerator Pedal Position Sensor, Faulty Signal >> Fault Conditions

Fault Conditions

ECM has registered a difference between analog and pulse width modulated signal from accelerator pedal and ECM-958F is stored in ECM.

No substitute value is used. Accelerator pedal is ignored during braking while ECM-958F is set.

Electronic Throttle System (ETS) Warning Light is lit while ECM-958F is set. Fault can cause poor acceleration and throttle response.

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